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<mods:namePart>Currie, P. J.</mods:namePart>
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Although frontals
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are currently unknown from Dinosaur Provincial
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,
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can predict that they
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be bulbous and lightly built, like those
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. The isolated
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(
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81.19.252
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)
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the frontals are separated from each other caudally by a rostral process of
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fused parietals, and that
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frontal broadly overlaps
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parietal posterolaterally.
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<emphasis box="[208,258,765,778]" italics="true" pageId="4" pageNumber="55">There</emphasis>
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<emphasis id="B936C945FF988449C7FCFD6EF245D311" box="[208,258,765,778]" italics="true" pageId="4" pageNumber="55">There</emphasis>
is no cranial
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known for elmisaurids from
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Mongolia
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Alberta. Currie and Russell (in preparation) have
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<emphasis bold="true" box="[729,822,787,805]" italics="true" pageId="4" pageNumber="55">expressed</emphasis>
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<emphasis id="B936C945FF988449C5F5FC80F071D33E" bold="true" box="[729,822,787,805]" italics="true" pageId="4" pageNumber="55">expressed</emphasis>
an
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opinion that the elmisaurid
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<emphasis box="[334,472,808,822]" italics="true" pageId="4" pageNumber="55">Chirostenotes</emphasis>
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congeneric with
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, and therefore that the
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is invalid. Unfortunately, there
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no
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of solving
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<emphasis id="B936C945FF988449C7D6FCC1F230D37B" box="[250,375,850,864]" italics="true" pageId="4" pageNumber="55">this dilemma</emphasis>
until better specimens are recovered.
</paragraph>
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A lower jaw
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by
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tentatively
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<emphasis id="B936C945FF988449C441FCF4F086D363" box="[877,961,871,888]" italics="true" pageId="4" pageNumber="55">assigned</emphasis>
to &quot;
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&quot;. If
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and
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toothless
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are congeneric,
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represents another theropod
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<emphasis id="B936C945FF988449C5CCFC00F040D3BA" box="[736,775,915,929]" italics="true" pageId="4" pageNumber="55">that</emphasis>
can be characterized
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long, slender jaws bearing teeth
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extremely fine serrations. It is possible that
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<emphasis id="B936C945FF988449C66AFC2EF229D3D0" box="[326,366,957,971]" italics="true" pageId="4" pageNumber="55">this</emphasis>
animal
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<emphasis id="B936C945FF988449C6FEFC2DF2A2D3D0" box="[466,485,958,971]" italics="true" pageId="4" pageNumber="55">is</emphasis>
the one that had the frontal that
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<emphasis id="B936C945FF988449C4A2FC2EF0ADD3D0" box="[910,1002,956,971]" italics="true" pageId="4" pageNumber="55">has been</emphasis>
assigned to Erlicosaurus.
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</subSubSection>

View file

@ -1,91 +1,92 @@
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frontals
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characterized by the presence of a prefrontal socket, the reduction of the orbital
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a
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, and the
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of a relatively short (rostrocaudally), overlapping suture for the postorbital (
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). immature frontals of
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can be distinguished from that of cf.
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their relatively
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and width for a given length. in
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, the
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of the frontal has been changed by the enlargement
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the lacrimal and postorbital, causing
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increase in
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width of the frontal (
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. 1h
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), and a lengthening of the postorbital suture.

View file

@ -1,117 +1,118 @@
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(
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,
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<bibRefCitation id="EFD368A6FF9D844CC6B5FA83F284D53A" author="Currie, P. J." box="[409,451,1296,1313]" journalOrPublisher="Journal of Vertebrate Paleontology." pageId="1" pageNumber="52" pagination="72 - 81" part="7" refId="ref3669" refString="1987 a. Bird-like characteristics of the jaws and teeth of troodontid theropods (Dinosauria, Saurischia). Journal of Vertebrate Paleontology. 7, pp. 72 - 81." title="Bird-like characteristics of the jaws and teeth of troodontid theropods (Dinosauria, Saurischia)" type="journal article" year="1987">1987</bibRefCitation>
a)
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has an elongate, triangular frontal with a long orbital
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(
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<emphasis box="[321,366,1318,1337]" italics="true" pageId="1" pageNumber="52">Figs</emphasis>
<figureCitation id="137909D2FF9D844CC66DFAB5F2DDD522" box="[321,410,1318,1337]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="1" pageNumber="52">
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. 1a
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,
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<figureCitation id="137909D2FF9D844CC699FAB5F285D52D" box="[437,450,1318,1334]" captionStart="FIG. 2" captionStartId="6.[141,168,1429,1440]" captionTargetBox="[140,1088,85,1417]" captionTargetPageId="6" captionText="FIG. 2 Troodon formosııs TMP 86.49.10). Right frontal in (a) ventral, (b) dorsal, (c) lateral and (d) medial views. Scale= 1 cm." figureDoi="http://doi.org/10.5281/zenodo.3676395" httpUri="https://zenodo.org/record/3676395/files/figure.png" pageId="1" pageNumber="52">2</figureCitation>
).
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prefrontal
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not
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identified
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certainty in
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, although a small, slender bone along the orbital
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of the frontal may be
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bone (
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). The lacrimal suture encroaches onto the dorsal surface of
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frontal, and ends caudally in a wall of bone. The dorsal surface of the frontal is
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in cross-section in the interorbital region, raised on both
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midline and the orbital
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. A well defined ridge running from the medial edge
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the frontoparietal suture to the deep, pit-like suture for the postorbital marks
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<emphasis id="B936C945FF9E844FC580FEADF06AD157" box="[684,813,318,332]" italics="true" pageId="2" pageNumber="53">the anterior</emphasis>
boundary of the supratemporal
<emphasis bold="true" box="[307,394,339,353]" pageId="2" pageNumber="53">fenestra</emphasis>
<emphasis id="B936C945FF9E844FC61FFEC0F2CDD17A" bold="true" box="[307,394,339,353]" pageId="2" pageNumber="53">fenestra</emphasis>
. As in
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<emphasis id="B936C945FF9E844FC6D4FEC0F1C3D17F" box="[504,644,339,356]" italics="true" pageId="2" pageNumber="53">ornithomimids</emphasis>
,
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<specimenCode box="[668,769,339,353]" pageId="2" pageNumber="53">NMC 12355</specimenCode>
<materialsCitation id="3B2A1F0AFF9E844FC5B0FEC7F046D17A" ID-GBIF-Occurrence="2545510067" box="[668,769,339,353]" collectionCode="NMC" pageId="2" pageNumber="53" specimenCode="NMC 12355">
<specimenCode id="DBE4BD2CFF9E844FC5B0FEC7F046D17A" box="[668,769,339,353]" pageId="2" pageNumber="53">NMC 12355</specimenCode>
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and
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<emphasis id="B936C945FF9E844FC46DFEC0F09ED178" box="[833,985,339,355]" italics="true" pageId="2" pageNumber="53">dromaeosaurids</emphasis>
, the frontal provides very little area of bone for muscle
<emphasis box="[768,872,360,374]" italics="true" pageId="2" pageNumber="53">attachment</emphasis>
<emphasis id="B936C945FF9E844FC42CFEFBF02FD16D" box="[768,872,360,374]" italics="true" pageId="2" pageNumber="53">attachment</emphasis>
within
<emphasis box="[963,992,360,373]" italics="true" pageId="2" pageNumber="53">the</emphasis>
<emphasis id="B936C945FF9E844FC4EFFEFBF0A7D16E" box="[963,992,360,373]" italics="true" pageId="2" pageNumber="53">the</emphasis>
supratemporal
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<emphasis id="B936C945FF9E844FC601FEEDF2CED197" bold="true" box="[301,393,382,396]" pageId="2" pageNumber="53">fenestra.</emphasis>
</paragraph>
</subSubSection>
</treatment>

View file

@ -1,291 +1,293 @@
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<emphasis box="[195,320,404,417]" italics="true" pageId="2" pageNumber="53">Ornithomimid</emphasis>
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<emphasis id="B936C945FF9E844FC7EFFE07F207D1BA" box="[195,320,404,417]" italics="true" pageId="2" pageNumber="53">Ornithomimid</emphasis>
frontals are
<emphasis box="[482,523,407,421]" italics="true" pageId="2" pageNumber="53">very</emphasis>
<emphasis id="B936C945FF9E844FC6CEFE04F14CD1BE" box="[482,523,407,421]" italics="true" pageId="2" pageNumber="53">very</emphasis>
rare. Cranial bones in
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<emphasis id="B936C945FF9E844FC40BFE00F01DD1BA" box="[807,858,403,417]" italics="true" pageId="2" pageNumber="53">these</emphasis>
animals are much lighter than those of other theropods both in
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<emphasis id="B936C945FF9E844FC434FE38F033D1AC" box="[792,884,425,439]" italics="true" pageId="2" pageNumber="53">terms of</emphasis>
relative
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<emphasis id="B936C945FF9E844FC7B5FE2DF3BFD1CB" box="[153,248,446,464]" italics="true" pageId="2" pageNumber="53">thickness</emphasis>
, and the
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<emphasis id="B936C945FF9E844FC644FE2DF292D1D7" box="[360,469,446,463]" italics="true" pageId="2" pageNumber="53">density of</emphasis>
the spongy bone layer. Consequently, they
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<emphasis id="B936C945FF9E844FC4EDFE52F0A7D1D5" box="[961,992,449,462]" italics="true" pageId="2" pageNumber="53">may</emphasis>
have been preserved less frequently because of their fragility. As in troodontids,
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<emphasis id="B936C945FF9E844FC60AFE7AF203D1EC" box="[294,324,489,503]" italics="true" pageId="2" pageNumber="53">the</emphasis>
frontal of
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<emphasis box="[464,611,490,504]" italics="true" pageId="2" pageNumber="53">Dromiceiomimus</emphasis>
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<emphasis bold="true" box="[627,645,490,503]" pageId="2" pageNumber="53">is</emphasis>
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long and triangular (
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<figureCitation id="137909D2FF9E844FC452FE7BF089D1E0" box="[894,974,487,507]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="2" pageNumber="53">Fig. 1b</figureCitation>
).
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shallow
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surface for the
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rostrodorsally. The lacrimal
<emphasis box="[473,546,535,547]" italics="true" pageId="2" pageNumber="53">contact</emphasis>
<emphasis id="B936C945FF9E844FC6F5FD84F165D238" box="[473,546,535,547]" italics="true" pageId="2" pageNumber="53">contact</emphasis>
is unusual in that it is a long tapering suture on the
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<emphasis id="B936C945FF9E844FC665FDB8F294D222" bold="true" box="[329,467,555,569]" pageId="2" pageNumber="53">rostrolateral</emphasis>
surface of the frontal. Unlike
<emphasis box="[876,917,557,569]" italics="true" pageId="2" pageNumber="53">most</emphasis>
<emphasis id="B936C945FF9E844FC440FDBEF0D2D222" box="[876,917,557,569]" italics="true" pageId="2" pageNumber="53">most</emphasis>
other
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<emphasis id="B936C945FF9E844FC7B6FDD2F3BFD24A" box="[154,248,577,593]" italics="true" pageId="2" pageNumber="53">theropods</emphasis>
, there is
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<emphasis id="B936C945FF9E844FC655FDD7F2C5D255" box="[377,386,580,590]" italics="true" pageId="2" pageNumber="53">a</emphasis>
simple process of the nasal overlapping
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<emphasis id="B936C945FF9E844FC471FDACF03DD256" box="[861,890,575,589]" italics="true" pageId="2" pageNumber="53">the</emphasis>
frontal. The dorsal surface of the frontal is almost flat in the interorbital region, but caudally
<emphasis box="[292,355,624,634]" italics="true" pageId="2" pageNumber="53">curves</emphasis>
<emphasis id="B936C945FF9E844FC608FDE3F224D261" box="[292,355,624,634]" italics="true" pageId="2" pageNumber="53">curves</emphasis>
posteroventrally in an
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<emphasis id="B936C945FF9E844FC540FDFFF1ECD261" bold="true" box="[620,683,620,634]" pageId="2" pageNumber="53">almost</emphasis>
bulbous fashion to
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<emphasis id="B936C945FF9E844FC4A5FDFEF0F5D262" box="[905,946,621,633]" italics="true" pageId="2" pageNumber="53">meet</emphasis>
the parietal. The anterior
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of the supratemporal fenestra
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not
<emphasis bold="true" box="[893,957,641,655]" pageId="2" pageNumber="53">marked</emphasis>
<emphasis id="B936C945FF9E844FC451FD12F0FAD294" bold="true" box="[893,957,641,655]" pageId="2" pageNumber="53">marked</emphasis>
by a well-defined
<emphasis box="[312,345,663,677]" italics="true" pageId="2" pageNumber="53">rim</emphasis>
<emphasis id="B936C945FF9E844FC614FD04F21ED2BE" box="[312,345,663,677]" italics="true" pageId="2" pageNumber="53">rim</emphasis>
.
</paragraph>
</subSubSection>
<subSubSection pageId="2" pageNumber="53" type="discussion">
<paragraph blockId="2.[149,993,210,1066]" pageId="2" pageNumber="53">
<emphasis box="[194,224,684,698]" italics="true" pageId="2" pageNumber="53">The</emphasis>
<subSubSection id="C35846DCFF9E844FC7EEFD3FF2D5D543" pageId="2" pageNumber="53" type="discussion">
<paragraph id="8BFD1557FF9E844FC7EEFD3FF2B9D2FE" blockId="2.[149,993,210,1066]" pageId="2" pageNumber="53">
<emphasis id="B936C945FF9E844FC7EEFD3FF3A7D2A1" box="[194,224,684,698]" italics="true" pageId="2" pageNumber="53">The</emphasis>
frontals of
<taxonomicName baseAuthorityName="Lambe" baseAuthorityYear="1902" box="[408,623,684,698]" class="Reptilia" family="Ornithomimidae" genus="Struthiomimus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Dinosauria" pageId="2" pageNumber="53" phylum="Chordata" rank="species" species="altus">Struthiomimus altus</taxonomicName>
<taxonomicName id="4C426ED4FF9E844FC6B4FD3FF128D2A1" authority="(Lambe, 1902)" baseAuthorityName="Lambe" baseAuthorityYear="1902" box="[408,623,684,698]" class="Reptilia" family="Ornithomimidae" genus="Struthiomimus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Dinosauria" pageId="2" pageNumber="53" phylum="Chordata" rank="species" species="altus">Struthiomimus altus</taxonomicName>
(
<materialsCitation ID-GBIF-Occurrence="2545510080" box="[656,771,682,699]" collectionCode="AMNH" pageId="2" pageNumber="53" specimenCode="AMNH 5355">
<specimenCode box="[656,771,682,699]" pageId="2" pageNumber="53">AMNH 5355</specimenCode>
<materialsCitation id="3B2A1F0AFF9E844FC5BCFD39F044D2A0" ID-GBIF-Occurrence="2545510080" box="[656,771,682,699]" collectionCode="AMNH" pageId="2" pageNumber="53" specimenCode="AMNH 5355">
<specimenCode id="DBE4BD2CFF9E844FC5BCFD39F044D2A0" box="[656,771,682,699]" pageId="2" pageNumber="53">AMNH 5355</specimenCode>
</materialsCitation>
) and
<taxonomicName authorityName="Sternberg" authorityYear="1933" class="Reptilia" family="Ornithomimidae" genus="Ornithomimus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Dinosauria" pageId="2" pageNumber="53" phylum="Chordata" rank="species" species="edmontonicus">
<emphasis italics="true" pageId="2" pageNumber="53">Ornithomimus edmontonicus</emphasis>
<taxonomicName id="4C426ED4FF9E844FC44DFD3FF252D2CB" authority="Sternberg, 1933" authorityName="Sternberg" authorityYear="1933" class="Reptilia" family="Ornithomimidae" genus="Ornithomimus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Dinosauria" pageId="2" pageNumber="53" phylum="Chordata" rank="species" species="edmontonicus">
<emphasis id="B936C945FF9E844FC44DFD3FF252D2CB" italics="true" pageId="2" pageNumber="53">Ornithomimus edmontonicus</emphasis>
</taxonomicName>
(
<materialsCitation ID-GBIF-Occurrence="2545510075" box="[299,381,705,722]" collectionCode="ROM" pageId="2" pageNumber="53" specimenCode="ROM 851">
<specimenCode box="[299,381,705,722]" pageId="2" pageNumber="53">ROM 851</specimenCode>
<materialsCitation id="3B2A1F0AFF9E844FC607FD52F23AD2C9" ID-GBIF-Occurrence="2545510075" box="[299,381,705,722]" collectionCode="ROM" pageId="2" pageNumber="53" specimenCode="ROM 851">
<specimenCode id="DBE4BD2CFF9E844FC607FD52F23AD2C9" box="[299,381,705,722]" pageId="2" pageNumber="53">ROM 851</specimenCode>
</materialsCitation>
,
<emphasis box="[407,502,706,720]" italics="true" pageId="2" pageNumber="53">Horseshoe</emphasis>
<emphasis id="B936C945FF9E844FC6BBFD51F2B1D2CB" box="[407,502,706,720]" italics="true" pageId="2" pageNumber="53">Horseshoe</emphasis>
Canyon
<emphasis box="[597,694,704,720]" italics="true" pageId="2" pageNumber="53">Formation</emphasis>
<emphasis id="B936C945FF9E844FC579FD53F1F1D2CB" box="[597,694,704,720]" italics="true" pageId="2" pageNumber="53">Formation</emphasis>
) are essentially identical to
<emphasis box="[185,417,727,741]" italics="true" pageId="2" pageNumber="53">
that of
<taxonomicName authorityName="Russell" authorityYear="1972" box="[268,505,727,741]" class="Reptilia" family="Ornithomimidae" genus="Dromiceiomimus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Dinosauria" pageId="2" pageNumber="53" phylum="Chordata" rank="species" species="samueli">Dromiceiomimus samueli</taxonomicName>
</emphasis>
<emphasis id="B936C945FF9E844FC795FD44F3B8D2FE" box="[185,255,727,741]" italics="true" pageId="2" pageNumber="53">that of</emphasis>
<taxonomicName id="4C426ED4FF9E844FC620FD4BF2BED2FE" authority="Russell, 1972" authorityName="Russell" authorityYear="1972" box="[268,505,727,741]" class="Reptilia" family="Ornithomimidae" genus="Dromiceiomimus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Dinosauria" pageId="2" pageNumber="53" phylum="Chordata" rank="species" species="samueli">
<emphasis id="B936C945FF9E844FC620FD4BF2E6D2FE" box="[268,417,728,741]" italics="true" pageId="2" pageNumber="53">Dromiceiomimus</emphasis>
samueli
</taxonomicName>
.
</paragraph>
<paragraph blockId="2.[149,993,210,1066]" pageId="2" pageNumber="53">
<paragraph id="8BFD1557FF9E844FC7EEFD7EF176D43C" blockId="2.[149,993,210,1066]" pageId="2" pageNumber="53">
Sues (1978) briefly described an
<emphasis box="[558,693,749,762]" italics="true" pageId="2" pageNumber="53">indeterminate</emphasis>
<emphasis id="B936C945FF9E844FC502FD7EF1F2D2E1" box="[558,693,749,762]" italics="true" pageId="2" pageNumber="53">indeterminate</emphasis>
frontal in the collections of the National Museum of Canada (
<materialsCitation ID-GBIF-Occurrence="2545510071" box="[523,626,769,787]" collectionCode="NMC" pageId="2" pageNumber="53" specimenCode="NMC 12355">
<specimenCode box="[523,626,769,787]" pageId="2" pageNumber="53">NMC 12355</specimenCode>
<materialsCitation id="3B2A1F0AFF9E844FC527FC92F135D308" ID-GBIF-Occurrence="2545510071" box="[523,626,769,787]" collectionCode="NMC" pageId="2" pageNumber="53" specimenCode="NMC 12355">
<specimenCode id="DBE4BD2CFF9E844FC527FC92F135D308" box="[523,626,769,787]" pageId="2" pageNumber="53">NMC 12355</specimenCode>
</materialsCitation>
,
<figureCitation box="[648,725,769,788]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="2" pageNumber="53">Fig. 1C</figureCitation>
<figureCitation id="137909D2FF9E844FC5A4FC90F192D309" box="[648,725,769,788]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="2" pageNumber="53">Fig. 1C</figureCitation>
) and
<emphasis bold="true" box="[793,875,770,784]" pageId="2" pageNumber="53">referred</emphasis>
<emphasis id="B936C945FF9E844FC435FC91F02CD30B" bold="true" box="[793,875,770,784]" pageId="2" pageNumber="53">referred</emphasis>
it to
<emphasis italics="true" pageId="2" pageNumber="53">
<emphasis id="B936C945FF9E844FC4ECFC90F3BED332" italics="true" pageId="2" pageNumber="53">
the
<taxonomicName authorityName="Marsb" authorityYear="1881" box="[152,249,792,809]" clade="Therapoda" class="Reptilia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Dinosauria" pageId="2" pageNumber="53" phylum="Chordata" rank="clade">Theropoda</taxonomicName>
<taxonomicName id="4C426ED4FF9E844FC7B4FC8BF3BED332" authorityName="Marsb" authorityYear="1881" box="[152,249,792,809]" clade="Therapoda" class="Reptilia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Dinosauria" pageId="2" pageNumber="53" phylum="Chordata" rank="clade">Theropoda</taxonomicName>
</emphasis>
.
<emphasis box="[281,357,792,809]" italics="true" pageId="2" pageNumber="53">However</emphasis>
<emphasis id="B936C945FF9E844FC635FC8BF222D332" box="[281,357,792,809]" italics="true" pageId="2" pageNumber="53">However</emphasis>
,
<emphasis box="[379,540,792,808]" italics="true" pageId="2" pageNumber="53">comparison with</emphasis>
<emphasis id="B936C945FF9E844FC657FC8AF15BD33E" box="[379,540,792,808]" italics="true" pageId="2" pageNumber="53">comparison with</emphasis>
Mongolian specimens suggests that it
<emphasis box="[960,991,796,809]" italics="true" pageId="2" pageNumber="53">may</emphasis>
<emphasis bold="true" box="[152,244,816,831]" pageId="2" pageNumber="53">represent</emphasis>
<taxonomicName authority="Perle, 1981" authorityName="Perle" authorityYear="1981" box="[262,389,814,828]" class="Reptilia" family="Segnosauridae" genus="Erlicosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Saurischia" pageId="2" pageNumber="53" phylum="Chordata" rank="genus">Erlicosaurus</taxonomicName>
<emphasis id="B936C945FF9E844FC4ECFC8FF098D332" box="[960,991,796,809]" italics="true" pageId="2" pageNumber="53">may</emphasis>
<emphasis id="B936C945FF9E844FC7B4FCA3F3B3D324" bold="true" box="[152,244,816,831]" pageId="2" pageNumber="53">represent</emphasis>
<taxonomicName id="4C426ED4FF9E844FC62AFCBDF2C2D327" box="[262,389,814,828]" family="Segnosauridae" genus="Erlicosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="2" pageNumber="53" phylum="Chordata" rank="genus">Erlicosaurus</taxonomicName>
(
<emphasis bold="true" box="[416,484,812,830]" pageId="2" pageNumber="53">Currie</emphasis>
<emphasis id="B936C945FF9E844FC68CFCBFF2A3D325" bold="true" box="[416,484,812,830]" pageId="2" pageNumber="53">Currie</emphasis>
, in preparation), a genus that is currently regarded as a Late Cretaceous prosaurupod (Paul 1984). The frontal suture of an isolated caenagnathid
<emphasis bold="true" box="[441,524,856,873]" pageId="2" pageNumber="53">parietal</emphasis>
<emphasis id="B936C945FF9E844FC695FCCBF14BD372" bold="true" box="[441,524,856,873]" pageId="2" pageNumber="53">parietal</emphasis>
(
<materialsCitation ID-GBIF-Occurrence="2545510068" box="[550,703,854,872]" collectionCode="TMP" pageId="2" pageNumber="53" specimenCode="TMP 81.19.252">
<specimenCode box="[550,703,854,872]" pageId="2" pageNumber="53">
<materialsCitation id="3B2A1F0AFF9E844FC50AFCC5F1F8D373" ID-GBIF-Occurrence="2545510068" box="[550,703,854,872]" collectionCode="TMP" pageId="2" pageNumber="53" specimenCode="TMP 81.19.252">
<specimenCode id="DBE4BD2CFF9E844FC50AFCC5F1F8D373" box="[550,703,854,872]" pageId="2" pageNumber="53">
TMP 81. 1 9.
<emphasis box="[660,691,855,872]" italics="true" pageId="2" pageNumber="53">25</emphasis>
<emphasis id="B936C945FF9E844FC5B8FCC4F1F4D373" box="[660,691,855,872]" italics="true" pageId="2" pageNumber="53">25</emphasis>
2
</specimenCode>
</materialsCitation>
, Currie, in preparation)
<emphasis bold="true" box="[153,204,876,890]" italics="true" pageId="2" pageNumber="53">shows</emphasis>
<emphasis id="B936C945FF9E844FC7B5FCFFF38BD361" bold="true" box="[153,204,876,890]" italics="true" pageId="2" pageNumber="53">shows</emphasis>
that
<materialsCitation ID-GBIF-Occurrence="2545510072" box="[267,363,875,890]" collectionCode="NMC" pageId="2" pageNumber="53" specimenCode="NMC 12355">NMC 12355</materialsCitation>
<materialsCitation id="3B2A1F0AFF9E844FC627FCFEF22CD361" ID-GBIF-Occurrence="2545510072" box="[267,363,875,890]" collectionCode="NMC" pageId="2" pageNumber="53" specimenCode="NMC 12355">NMC 12355</materialsCitation>
is not a
<emphasis box="[473,602,876,894]" italics="true" pageId="2" pageNumber="53">caenagnsthid</emphasis>
<emphasis id="B936C945FF9E844FC6F5FCFFF11DD365" box="[473,602,876,894]" italics="true" pageId="2" pageNumber="53">caenagnsthid</emphasis>
, but it still
<emphasis box="[763,794,880,893]" italics="true" pageId="2" pageNumber="53">may</emphasis>
<emphasis id="B936C945FF9E844FC5D7FCE3F05DD366" box="[763,794,880,893]" italics="true" pageId="2" pageNumber="53">may</emphasis>
turn out to be
<emphasis bold="true" box="[970,990,880,890]" pageId="2" pageNumber="53">an</emphasis>
<emphasis id="B936C945FF9E844FC4E6FCE3F099D361" bold="true" box="[970,990,880,890]" pageId="2" pageNumber="53">an</emphasis>
elmisaurid or other
<emphasis box="[383,471,899,916]" italics="true" pageId="2" pageNumber="53">theropod</emphasis>
<emphasis id="B936C945FF9E844FC653FC10F290D38F" box="[383,471,899,916]" italics="true" pageId="2" pageNumber="53">theropod</emphasis>
.
<emphasis box="[507,548,898,912]" italics="true" pageId="2" pageNumber="53">This</emphasis>
<emphasis bold="true" box="[567,678,899,912]" pageId="2" pageNumber="53">frontal is</emphasis>
<emphasis id="B936C945FF9E844FC6D7FC11F163D38B" box="[507,548,898,912]" italics="true" pageId="2" pageNumber="53">This</emphasis>
<emphasis id="B936C945FF9E844FC51BFC10F1E1D38B" bold="true" box="[567,678,899,912]" pageId="2" pageNumber="53">frontal is</emphasis>
an
<emphasis bold="true" box="[735,818,899,916]" pageId="2" pageNumber="53">elongate</emphasis>
<emphasis id="B936C945FF9E844FC5F3FC10F075D38F" bold="true" box="[735,818,899,916]" pageId="2" pageNumber="53">elongate</emphasis>
triangle, like
<emphasis bold="true" box="[152,204,920,933]" pageId="2" pageNumber="53">those</emphasis>
<emphasis box="[224,380,920,934]" italics="true" pageId="2" pageNumber="53">of troodontids</emphasis>
<emphasis id="B936C945FF9E844FC7B4FC0BF38BD3BE" bold="true" box="[152,204,920,933]" pageId="2" pageNumber="53">those</emphasis>
<emphasis id="B936C945FF9E844FC7CCFC0BF23BD3BD" box="[224,380,920,934]" italics="true" pageId="2" pageNumber="53">of troodontids</emphasis>
and
<emphasis box="[454,594,920,934]" italics="true" pageId="2" pageNumber="53">ornithomimids</emphasis>
<emphasis id="B936C945FF9E844FC6EAFC0BF115D3BD" box="[454,594,920,934]" italics="true" pageId="2" pageNumber="53">ornithomimids</emphasis>
. A shallow, rostrodorsal sutural
<emphasis bold="true" box="[152,225,941,955]" pageId="2" pageNumber="53">surface</emphasis>
<emphasis id="B936C945FF9E844FC7B4FC3EF3A6D3A0" bold="true" box="[152,225,941,955]" pageId="2" pageNumber="53">surface</emphasis>
suggests that the prefrontal
<emphasis box="[555,586,946,956]" italics="true" pageId="2" pageNumber="53">was</emphasis>
<emphasis id="B936C945FF9E844FC507FC21F10DD3A7" box="[555,586,946,956]" italics="true" pageId="2" pageNumber="53">was</emphasis>
present and in the
<emphasis box="[815,990,942,959]" italics="true" pageId="2" pageNumber="53">same position as</emphasis>
<emphasis id="B936C945FF9E844FC403FC21F099D3A7" box="[815,990,942,959]" italics="true" pageId="2" pageNumber="53">same position as</emphasis>
in
<emphasis box="[193,331,963,977]" italics="true" pageId="2" pageNumber="53">ornithomimids</emphasis>
<emphasis id="B936C945FF9E844FC7EDFC50F20CD3CA" box="[193,331,963,977]" italics="true" pageId="2" pageNumber="53">ornithomimids</emphasis>
. The caudolateral
<emphasis box="[568,630,964,981]" italics="true" pageId="2" pageNumber="53">margin</emphasis>
<emphasis id="B936C945FF9E844FC514FC57F131D3CE" box="[568,630,964,981]" italics="true" pageId="2" pageNumber="53">margin</emphasis>
of the ventral suture of the lacrimal
<emphasis bold="true" box="[258,276,985,998]" pageId="2" pageNumber="53">is</emphasis>
<emphasis id="B936C945FF9E844FC62EFC4AF253D3FD" bold="true" box="[258,276,985,998]" pageId="2" pageNumber="53">is</emphasis>
a
<emphasis bold="true" box="[328,497,984,999]" pageId="2" pageNumber="53">transverse wall</emphasis>
<emphasis id="B936C945FF9E844FC664FC48F2B6D3FD" bold="true" box="[328,497,984,999]" pageId="2" pageNumber="53">transverse wall</emphasis>
of bone similar to
<emphasis box="[760,840,985,999]" italics="true" pageId="2" pageNumber="53">that of</emphasis>
<taxonomicName box="[864,941,985,999]" class="Reptilia" family="Troodontidae" genus="Troodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Dinosauria" pageId="2" pageNumber="53" phylum="Chordata" rank="genus">Troodon</taxonomicName>
<emphasis id="B936C945FF9E844FC5D4FC4AF00FD3FC" box="[760,840,985,999]" italics="true" pageId="2" pageNumber="53">that of</emphasis>
<taxonomicName id="4C426ED4FF9E844FC44CFC4AF0EAD3FC" box="[864,941,985,999]" class="Reptilia" family="Troodontidae" genus="Troodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Dinosauria" pageId="2" pageNumber="53" phylum="Chordata" rank="genus">Troodon</taxonomicName>
.
<emphasis box="[980,991,985,999]" italics="true" pageId="2" pageNumber="53">A</emphasis>
<emphasis id="B936C945FF9E844FC4F8FC4AF098D3FC" box="[980,991,985,999]" italics="true" pageId="2" pageNumber="53">A</emphasis>
longitudinal trough runs along the dorsal
<emphasis bold="true" box="[614,687,1007,1020]" pageId="2" pageNumber="53">surface</emphasis>
<emphasis id="B936C945FF9E844FC54AFC7CF1E8D3E7" bold="true" box="[614,687,1007,1020]" pageId="2" pageNumber="53">surface</emphasis>
of
<emphasis box="[739,768,1006,1020]" italics="true" pageId="2" pageNumber="53">the</emphasis>
<emphasis id="B936C945FF9E844FC5CFFC7DF047D3E7" box="[739,768,1006,1020]" italics="true" pageId="2" pageNumber="53">the</emphasis>
frontal between
<emphasis box="[960,990,1007,1021]" italics="true" pageId="2" pageNumber="53">the</emphasis>
<emphasis id="B936C945FF9E844FC4ECFC7CF099D3E6" box="[960,990,1007,1021]" italics="true" pageId="2" pageNumber="53">the</emphasis>
midline and the orbital
<emphasis box="[441,474,1028,1042]" italics="true" pageId="2" pageNumber="53">rim</emphasis>
<emphasis id="B936C945FF9E844FC695FB97F29DD409" box="[441,474,1028,1042]" italics="true" pageId="2" pageNumber="53">rim</emphasis>
.
<emphasis box="[512,523,1028,1041]" italics="true" pageId="2" pageNumber="53">A</emphasis>
<emphasis id="B936C945FF9E844FC52CFB97F14CD40A" box="[512,523,1028,1041]" italics="true" pageId="2" pageNumber="53">A</emphasis>
poorly defined ridge
<emphasis box="[790,843,1029,1042]" italics="true" pageId="2" pageNumber="53">marks</emphasis>
<emphasis id="B936C945FF9E844FC43AFB96F00CD409" box="[790,843,1029,1042]" italics="true" pageId="2" pageNumber="53">marks</emphasis>
the
<emphasis bold="true" box="[917,989,1029,1043]" pageId="2" pageNumber="53">rostral</emphasis>
<emphasis id="B936C945FF9E844FC4B9FB96F09AD408" bold="true" box="[917,989,1029,1043]" pageId="2" pageNumber="53">rostral</emphasis>
boundary of the supratemporal fenestra.
</paragraph>
<paragraph blockId="2.[147,991,1091,1369]" pageId="2" pageNumber="53">
<paragraph id="8BFD1557FF9E844FC7EDFBD7F2D5D543" blockId="2.[147,991,1091,1369]" pageId="2" pageNumber="53">
Dromaeosaurid frontals (
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<emphasis bold="true" box="[458,501,1091,1110]" pageId="2" pageNumber="53">Figs</emphasis>
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. 1d, 1e
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,
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) are readily distinguished from those
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<emphasis id="B936C945FF9E844FC7CCFBCAF27BD47C" bold="true" box="[224,316,1113,1127]" pageId="2" pageNumber="53">of other</emphasis>
theropods.
<emphasis box="[472,513,1115,1131]" italics="true" pageId="2" pageNumber="53">They</emphasis>
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relatively shorter and broader than
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<emphasis id="B936C945FF9E844FC7BAFBFCF247D465" box="[150,256,1135,1150]" italics="true" pageId="2" pageNumber="53">troodontid</emphasis>
and ornithomimid frontals. In ventral
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<emphasis id="B936C945FF9E844FC5E7FBE3F1B0D49A" box="[715,759,1136,1153]" italics="true" pageId="2" pageNumber="53">view</emphasis>
,
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<emphasis id="B936C945FF9E844FC43CFBE3F069D465" box="[784,814,1136,1150]" italics="true" pageId="2" pageNumber="53">the</emphasis>
orbital
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<emphasis id="B936C945FF9E844FC4B6FBE2F0FED465" box="[922,953,1137,1150]" italics="true" pageId="2" pageNumber="53">rim</emphasis>
is split rostrolaterally, and the lacrimal
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<emphasis id="B936C945FF9E844FC54CFB1AF1D9D48C" bold="true" box="[608,670,1161,1175]" pageId="2" pageNumber="53">passes</emphasis>
through this slot onto the dorsal
<emphasis bold="true" box="[229,302,1179,1192]" pageId="2" pageNumber="53">surface</emphasis>
<emphasis id="B936C945FF9E844FC7C9FB08F269D4B3" bold="true" box="[229,302,1179,1192]" pageId="2" pageNumber="53">surface</emphasis>
of the bone.
<emphasis box="[475,550,1180,1193]" italics="true" pageId="2" pageNumber="53">This is</emphasis>
<emphasis bold="true" box="[566,607,1183,1196]" pageId="2" pageNumber="53">very</emphasis>
<emphasis id="B936C945FF9E844FC6F7FB0FF161D4B2" box="[475,550,1180,1193]" italics="true" pageId="2" pageNumber="53">This is</emphasis>
<emphasis id="B936C945FF9E844FC51AFB0CF118D4B7" bold="true" box="[566,607,1183,1196]" pageId="2" pageNumber="53">very</emphasis>
different from
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<emphasis id="B936C945FF9E844FC434FB0FF072D4B2" box="[792,821,1180,1193]" italics="true" pageId="2" pageNumber="53">the</emphasis>
broad lacrimal suture on ventral surface of the frontals of
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and
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12355
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, but
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comparable
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<emphasis id="B936C945FF9E844FC63EFB55F230D4CF" box="[274,375,1222,1236]" italics="true" pageId="2" pageNumber="53">with this</emphasis>
part of the frontolacrimal suture of tyrannosaurids. Rostrodorsally, the dromaeosaurid frontal
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<emphasis id="B936C945FF9E844FC54DFB4EF138D4F0" box="[609,639,1245,1259]" italics="true" pageId="2" pageNumber="53">has</emphasis>
a
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<emphasis id="B936C945FF9E844FC58BFB72F1BBD4F5" box="[679,764,1249,1262]" italics="true" pageId="2" pageNumber="53">squamose</emphasis>
sutural surface for
<emphasis box="[149,179,1266,1280]" italics="true" pageId="2" pageNumber="53">the</emphasis>
<emphasis id="B936C945FF9E844FC7B9FB61F3F4D51B" box="[149,179,1266,1280]" italics="true" pageId="2" pageNumber="53">the</emphasis>
nasal and prefrontal bones. In dorsal view, the postorbital process of the frontal diverges strongly
<emphasis box="[512,553,1288,1302]" italics="true" pageId="2" pageNumber="53">from</emphasis>
<emphasis id="B936C945FF9E844FC52CFA9BF16ED50D" box="[512,553,1288,1302]" italics="true" pageId="2" pageNumber="53">from</emphasis>
the
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<emphasis id="B936C945FF9E844FC559FA99F1DAD50D" bold="true" box="[629,669,1290,1302]" pageId="2" pageNumber="53">rest</emphasis>
of the orbital
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<emphasis id="B936C945FF9E844FC459FA9AF0D2D50C" box="[885,917,1289,1303]" italics="true" pageId="2" pageNumber="53">rim</emphasis>
.
<emphasis box="[958,988,1290,1303]" italics="true" pageId="2" pageNumber="53">The</emphasis>
<emphasis id="B936C945FF9E844FC492FA99F09BD50C" box="[958,988,1290,1303]" italics="true" pageId="2" pageNumber="53">The</emphasis>
postorbital suture
<emphasis box="[364,436,1308,1322]" italics="true" pageId="2" pageNumber="53">extends</emphasis>
<emphasis id="B936C945FF9E844FC640FA8FF2F3D531" box="[364,436,1308,1322]" italics="true" pageId="2" pageNumber="53">extends</emphasis>
onto the caudodorsal surface of the postorbital process, and is not well defined. The frontal is only shallowly dished out in the interorbital region.
</paragraph>
</subSubSection>

View file

@ -1,148 +1,150 @@
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<emphasis box="[166,185,1322,1335]" italics="true" pageId="3" pageNumber="54">At</emphasis>
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three
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<emphasis box="[419,668,1321,1338]" italics="true" pageId="3" pageNumber="54">of Tyrannosauridae seem</emphasis>
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to have lived in the area now known
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Dinosaur Provincial
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. The
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<emphasis id="B936C945FF9F844EC54FFAADF1FED557" bold="true" box="[611,697,1342,1356]" pageId="3" pageNumber="54">first is</emphasis>
a gracile tyrannosaurid (
<figureCitation box="[135,206,1362,1382]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="3" pageNumber="54">Fig. 1f</figureCitation>
<figureCitation id="137909D2FF9F844EC7ABFAC7F389D57D" box="[135,206,1362,1382]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="3" pageNumber="54">Fig. 1f</figureCitation>
)
<emphasis box="[229,271,1363,1377]" italics="true" pageId="3" pageNumber="54">with</emphasis>
<emphasis id="B936C945FF9F844EC7C9FAC0F248D57A" box="[229,271,1363,1377]" italics="true" pageId="3" pageNumber="54">with</emphasis>
a relatively long,
<emphasis box="[484,548,1367,1377]" italics="true" pageId="3" pageNumber="54">narrow</emphasis>
<emphasis id="B936C945FF9F844EC6C8FAC4F163D57A" box="[484,548,1367,1377]" italics="true" pageId="3" pageNumber="54">narrow</emphasis>
frontal. Isolated teeth
<emphasis box="[826,932,1363,1377]" italics="true" pageId="3" pageNumber="54">identified</emphasis>
<emphasis bold="true" box="[124,144,1390,1400]" pageId="3" pageNumber="54">as</emphasis>
<taxonomicName authorityName="Leidy" authorityYear="1868" box="[157,263,1385,1405]" class="Reptilia" family="Tyrannosauridae" genus="Aublysodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Dinosauria" pageId="3" pageNumber="54" phylum="Chordata" rank="genus">Aublysodon</taxonomicName>
<emphasis id="B936C945FF9F844EC416FAC0F0E3D57A" box="[826,932,1363,1377]" italics="true" pageId="3" pageNumber="54">identified</emphasis>
<emphasis id="B936C945FF9F844EC750FAFDF3D7D563" bold="true" box="[124,144,1390,1400]" pageId="3" pageNumber="54">as</emphasis>
<taxonomicName id="4C426ED4FF9F844EC7B1FAFAF240D566" authorityName="Leidy" authorityYear="1868" box="[157,263,1385,1405]" class="Reptilia" family="Tyrannosauridae" genus="Aublysodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Dinosauria" pageId="3" pageNumber="54" phylum="Chordata" rank="genus">Aublysodon</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection lastPageId="4" lastPageNumber="55" pageId="3" pageNumber="54" type="description">
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<emphasis bold="true" box="[276,306,1388,1398]" pageId="3" pageNumber="54">are</emphasis>
<subSubSection id="C35846DCFF9F8449C638FAFFF218D1A9" lastPageId="4" lastPageNumber="55" pageId="3" pageNumber="54" type="description">
<paragraph id="8BFD1557FF9F8449C638FAFFF218D1A9" blockId="3.[124,968,245,1427]" lastBlockId="4.[159,1004,206,1386]" lastPageId="4" lastPageNumber="55" pageId="3" pageNumber="54">
<emphasis id="B936C945FF9F844EC638FAFFF275D56D" bold="true" box="[276,306,1388,1398]" pageId="3" pageNumber="54">are</emphasis>
the premaxillary
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<emphasis id="B936C945FF9F844EC6D1FAFAF177D56C" box="[509,560,1385,1399]" italics="true" pageId="3" pageNumber="54">teeth</emphasis>
of a small tyrannosaurid.
<emphasis box="[876,918,1385,1402]" italics="true" pageId="3" pageNumber="54">They</emphasis>
<emphasis id="B936C945FF9F844EC440FAFAF0D1D561" box="[876,918,1385,1402]" italics="true" pageId="3" pageNumber="54">They</emphasis>
are relatively
<emphasis box="[251,316,1413,1426]" italics="true" pageId="3" pageNumber="54">common</emphasis>
<emphasis id="B936C945FF9F844EC7D7FA16F27BD589" box="[251,316,1413,1426]" italics="true" pageId="3" pageNumber="54">common</emphasis>
, and can be distinguished from the teeth of juvenile
<emphasis box="[166,292,208,225]" italics="true" pageId="4" pageNumber="55">specimens of</emphasis>
<emphasis id="B936C945FF988449C78AFF43F263D0C5" box="[166,292,208,225]" italics="true" pageId="4" pageNumber="55">specimens of</emphasis>
large tyrannosaurids
<emphasis box="[531,615,207,224]" italics="true" pageId="4" pageNumber="55">by their</emphasis>
<emphasis id="B936C945FF988449C53FFF5CF120D0C6" box="[531,615,207,224]" italics="true" pageId="4" pageNumber="55">by their</emphasis>
lack of
<emphasis box="[715,863,207,222]" italics="true" pageId="4" pageNumber="55">serrations and</emphasis>
<emphasis id="B936C945FF988449C5E7FF43F018D0C6" box="[715,863,207,222]" italics="true" pageId="4" pageNumber="55">serrations and</emphasis>
more gracile appearance. Gracile, small maxillary and dentary teeth with serrations have also been identified
<emphasis bold="true" box="[405,424,254,264]" pageId="4" pageNumber="55">as</emphasis>
<emphasis id="B936C945FF988449C6B9FF6DF2EFD113" bold="true" box="[405,424,254,264]" pageId="4" pageNumber="55">as</emphasis>
a small, Judithian tyrannosaurid. It would appear that a Lancian theropod described by Molnar (1978) is in fact
<emphasis bold="true" box="[921,929,274,284]" pageId="4" pageNumber="55">a</emphasis>
<emphasis id="B936C945FF988449C4B5FE81F0E6D107" bold="true" box="[921,929,274,284]" pageId="4" pageNumber="55">a</emphasis>
small tyrannosaurid, and that
<emphasis box="[423,463,293,307]" italics="true" pageId="4" pageNumber="55">this</emphasis>
<emphasis id="B936C945FF988449C68BFEB6F288D128" box="[423,463,293,307]" italics="true" pageId="4" pageNumber="55">this</emphasis>
animal
<emphasis bold="true" box="[552,571,293,306]" pageId="4" pageNumber="55">is</emphasis>
<emphasis id="B936C945FF988449C504FEB6F17CD129" bold="true" box="[552,571,293,306]" pageId="4" pageNumber="55">is</emphasis>
the
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<emphasis id="B936C945FF988449C558FEBBF1F9D128" box="[628,702,296,307]" italics="true" pageId="4" pageNumber="55">same as</emphasis>
the tooth
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<treatmentCitation pageId="4" pageNumber="55">
<taxonomicName authorityName="Leidy" authorityYear="1868" box="[887,993,291,311]" class="Reptilia" family="Tyrannosauridae" genus="Aublysodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Dinosauria" pageId="4" pageNumber="55" phylum="Chordata" rank="genus">Aublysodon</taxonomicName>
<emphasis id="B936C945FF988449C41BFEBAF02CD12D" bold="true" box="[823,875,297,310]" pageId="4" pageNumber="55">genus</emphasis>
<treatmentCitation id="0AE33346FF988449C45BFEB0F01AD152" pageId="4" pageNumber="55">
<taxonomicName id="4C426ED4FF988449C45BFEB0F0A6D12C" authorityName="Leidy" authorityYear="1868" box="[887,993,291,311]" class="Reptilia" family="Tyrannosauridae" genus="Aublysodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Dinosauria" pageId="4" pageNumber="55" phylum="Chordata" rank="genus">Aublysodon</taxonomicName>
(K.
<emphasis box="[220,313,316,332]" italics="true" pageId="4" pageNumber="55">Carpenter</emphasis>
<emphasis id="B936C945FF988449C7F0FEAFF27ED157" box="[220,313,316,332]" italics="true" pageId="4" pageNumber="55">Carpenter</emphasis>
and R.E. Molnar, personal
<emphasis box="[647,788,315,330]" italics="true" pageId="4" pageNumber="55">communication</emphasis>
<emphasis id="B936C945FF988449C5ABFEA8F053D151" box="[647,788,315,330]" italics="true" pageId="4" pageNumber="55">communication</emphasis>
, 1986
</treatmentCitation>
). It
<emphasis box="[952,1004,316,327]" italics="true" pageId="4" pageNumber="55">seems</emphasis>
<emphasis id="B936C945FF988449C494FEAFF0ABD15C" box="[952,1004,316,327]" italics="true" pageId="4" pageNumber="55">seems</emphasis>
possible then that
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<emphasis box="[371,402,335,348]" italics="true" pageId="4" pageNumber="55">
<collectionCode box="[371,402,335,348]" collectionName="Taiwan [Republic of China], Taipei, Taiwan Provincial Museum" pageId="4" pageNumber="55">TMP</collectionCode>
<materialsCitation id="3B2A1F0AFF988449C65FFEDCF2BAD146" ID-GBIF-Occurrence="2545510066" box="[371,509,334,349]" collectionCode="TMP" pageId="4" pageNumber="55" specimenCode="TMP 80.16.485">
<emphasis id="B936C945FF988449C65FFEDCF2D5D147" box="[371,402,335,348]" italics="true" pageId="4" pageNumber="55">
<collectionCode id="ED538D92FF988449C65FFEDCF2D5D147" box="[371,402,335,348]" collectionName="Taiwan [Republic of China], Taipei, Taiwan Provincial Museum" pageId="4" pageNumber="55">TMP</collectionCode>
</emphasis>
80.16.485
</materialsCitation>
(
<figureCitation box="[533,608,333,355]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="4" pageNumber="55">Fig. 1f</figureCitation>
<figureCitation id="137909D2FF988449C539FEDEF127D178" box="[533,608,333,355]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="4" pageNumber="55">Fig. 1f</figureCitation>
) is
<taxonomicName authorityName="Leidy" authorityYear="1868" box="[665,773,334,355]" class="Reptilia" family="Tyrannosauridae" genus="Aublysodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Dinosauria" pageId="4" pageNumber="55" phylum="Chordata" rank="genus">Aublysodon</taxonomicName>
<emphasis box="[786,806,339,349]" italics="true" pageId="4" pageNumber="55">or</emphasis>
<taxonomicName id="4C426ED4FF988449C5B5FEDDF042D178" authorityName="Leidy" authorityYear="1868" box="[665,773,334,355]" class="Reptilia" family="Tyrannosauridae" genus="Aublysodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Dinosauria" pageId="4" pageNumber="55" phylum="Chordata" rank="genus">Aublysodon</taxonomicName>
<emphasis id="B936C945FF988449C43EFEC0F061D146" box="[786,806,339,349]" italics="true" pageId="4" pageNumber="55">or</emphasis>
a closely related genus. It is conceivable that further
<emphasis box="[619,734,357,373]" italics="true" pageId="4" pageNumber="55">preparation</emphasis>
<emphasis id="B936C945FF988449C547FEF6F199D16E" box="[619,734,357,373]" italics="true" pageId="4" pageNumber="55">preparation</emphasis>
and
<emphasis box="[803,892,356,373]" italics="true" pageId="4" pageNumber="55">study of</emphasis>
<emphasis id="B936C945FF988449C40FFEF6F03BD16A" box="[803,892,356,373]" italics="true" pageId="4" pageNumber="55">study of</emphasis>
the
<emphasis box="[963,1004,358,373]" italics="true" pageId="4" pageNumber="55">type</emphasis>
<emphasis id="B936C945FF988449C4EFFEF5F0ABD16E" box="[963,1004,358,373]" italics="true" pageId="4" pageNumber="55">type</emphasis>
specimen
<emphasis box="[267,417,378,397]" italics="true" pageId="4" pageNumber="55">
or
<taxonomicName authorityName="Lambe" authorityYear="1914" box="[301,537,378,397]" class="Reptilia" family="Tyrannosauridae" genus="Gorgosaurus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Dinosauria" pageId="4" pageNumber="55" phylum="Chordata" rank="species" species="sternbergi">Gorgosaurus sternbergi</taxonomicName>
</emphasis>
<emphasis id="B936C945FF988449C627FEE8F259D193" box="[267,286,379,392]" italics="true" pageId="4" pageNumber="55">or</emphasis>
<taxonomicName id="4C426ED4FF988449C601FEE9F15ED196" authority="Matthew &amp; Brown, 1923 " authorityName="Matthew &amp; Brown" authorityYear="1923" box="[301,537,378,397]" class="Reptilia" family="Tyrannosauridae" genus="Gorgosaurus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Dinosauria" pageId="4" pageNumber="55" phylum="Chordata" rank="species" species="sternbergi">
<emphasis id="B936C945FF988449C601FEE9F2E6D196" box="[301,417,378,397]" italics="true" pageId="4" pageNumber="55">Gorgosaurus</emphasis>
sternbergi
</taxonomicName>
(
<specimenCode box="[561,666,376,394]" pageId="4" pageNumber="55">AMNH 5664</specimenCode>
<specimenCode id="DBE4BD2CFF988449C51DFEEBF1DDD191" box="[561,666,376,394]" pageId="4" pageNumber="55">AMNH 5664</specimenCode>
,
<bibRefCitation author="Matthew, W. D. &amp; Brown. B" box="[689,937,376,397]" journalOrPublisher="American Museum Novitates" pageId="4" pageNumber="55" pagination="1 - 9" part="89" refId="ref3893" refString="Matthew, W. D. and Brown. B. 1923. Preliminary notices of skeletons and skulls of Delnodontidae from the Cretaceous of Alberta. American Museum Novitates, 89, pp. 1 - 9." title="Preliminary notices of skeletons and skulls of Delnodontidae from the Cretaceous of Alberta" type="journal article" year="1923">
<emphasis box="[689,764,378,392]" italics="true" pageId="4" pageNumber="55">Matthew</emphasis>
<bibRefCitation id="EFD368A6FF988449C59DFEE9F0EED193" author="Matthew, W. D. &amp; Brown. B" box="[689,937,376,397]" journalOrPublisher="American Museum Novitates" pageId="4" pageNumber="55" pagination="1 - 9" part="89" refId="ref3893" refString="Matthew, W. D. and Brown. B. 1923. Preliminary notices of skeletons and skulls of Delnodontidae from the Cretaceous of Alberta. American Museum Novitates, 89, pp. 1 - 9." title="Preliminary notices of skeletons and skulls of Delnodontidae from the Cretaceous of Alberta" type="journal article" year="1923">
<emphasis id="B936C945FF988449C59DFEE9F1BBD193" box="[689,764,378,392]" italics="true" pageId="4" pageNumber="55">Matthew</emphasis>
and
<emphasis box="[827,878,376,397]" italics="true" pageId="4" pageNumber="55">Brown</emphasis>
<emphasis id="B936C945FF988449C417FEEBF029D196" box="[827,878,376,397]" italics="true" pageId="4" pageNumber="55">Brown</emphasis>
1923
</bibRefCitation>
) will reveal that
<emphasis box="[305,382,399,413]" italics="true" pageId="4" pageNumber="55">this is</emphasis>
<emphasis id="B936C945FF988449C61DFE1CF239D187" box="[305,382,399,413]" italics="true" pageId="4" pageNumber="55">this is</emphasis>
a valid species, and that this is the source of the aublysodont teeth.
</paragraph>
</subSubSection>

View file

@ -1,153 +1,159 @@
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<mods:namePart>Currie P. J.</mods:namePart>
<mods:namePart id="EAD798869F288EF0D0BB3F30CCB1EFFA">Currie P. J.</mods:namePart>
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<mods:namePart>Koster E. H.</mods:namePart>
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<mods:titleInfo>
<mods:title>Fourth Symposium on Mesozoic Terrestrial Ecosystems</mods:title>
<mods:titleInfo id="1D24333415278F2B31D8C7254DAF4AE2">
<mods:title id="3AC032356BDF711D7AF451BF2313D00A">Fourth Symposium on Mesozoic Terrestrial Ecosystems</mods:title>
</mods:titleInfo>
<mods:part>
<mods:extent unit="page">
<mods:start>51</mods:start>
<mods:end>60</mods:end>
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<mods:classification>book chapter</mods:classification>
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<subSubSection pageId="3" pageNumber="54" type="nomenclature">
<paragraph blockId="3.[124,968,245,1427]" pageId="3" pageNumber="54">
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<subSubSection id="C35846DCFF9F844EC785FC83F0C3D3ED" pageId="3" pageNumber="54" type="nomenclature">
<paragraph id="8BFD1557FF9F844EC785FC83F0C3D3ED" blockId="3.[124,968,245,1427]" pageId="3" pageNumber="54">
Tyrannosaurid frontals are very
<emphasis box="[529,646,784,797]" italics="true" pageId="3" pageNumber="54">distinctive</emphasis>
<emphasis id="B936C945FF9F844EC53DFC83F1C1D306" box="[529,646,784,797]" italics="true" pageId="3" pageNumber="54">distinctive</emphasis>
in
<emphasis box="[702,753,784,798]" italics="true" pageId="3" pageNumber="54">their</emphasis>
<emphasis id="B936C945FF9F844EC592FC83F1B6D305" box="[702,753,784,798]" italics="true" pageId="3" pageNumber="54">their</emphasis>
relationships with the bones they
<emphasis box="[288,362,808,819]" italics="true" pageId="3" pageNumber="54">contact</emphasis>
<emphasis id="B936C945FF9F844EC60CFCBBF22DD328" box="[288,362,808,819]" italics="true" pageId="3" pageNumber="54">contact</emphasis>
. Two or three prongs of the nasal overlap the rostral end of the
<emphasis box="[266,337,827,841]" italics="true" pageId="3" pageNumber="54">frontal</emphasis>
<emphasis id="B936C945FF9F844EC626FCA8F216D352" box="[266,337,827,841]" italics="true" pageId="3" pageNumber="54">frontal</emphasis>
. The prefrontal
<emphasis box="[554,572,828,841]" italics="true" pageId="3" pageNumber="54">is</emphasis>
<emphasis id="B936C945FF9F844EC506FCAFF17BD352" box="[554,572,828,841]" italics="true" pageId="3" pageNumber="54">is</emphasis>
always present, although in
<emphasis box="[925,965,830,840]" italics="true" pageId="3" pageNumber="54">some</emphasis>
<emphasis id="B936C945FF9F844EC4B1FCADF082D353" box="[925,965,830,840]" italics="true" pageId="3" pageNumber="54">some</emphasis>
species it
<emphasis box="[246,277,853,866]" italics="true" pageId="3" pageNumber="54">may</emphasis>
<emphasis id="B936C945FF9F844EC7DAFCC6F252D379" box="[246,277,853,866]" italics="true" pageId="3" pageNumber="54">may</emphasis>
be fused to
<emphasis box="[424,487,849,863]" italics="true" pageId="3" pageNumber="54">either</emphasis>
<emphasis id="B936C945FF9F844EC684FCC2F2A0D344" box="[424,487,849,863]" italics="true" pageId="3" pageNumber="54">either</emphasis>
the
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<emphasis id="B936C945FF9F844EC50EFCC2F111D345" bold="true" box="[546,598,849,862]" pageId="3" pageNumber="54">nasal</emphasis>
or lacrimal, and in others it is
<emphasis box="[126,198,871,885]" italics="true" pageId="3" pageNumber="54">covered</emphasis>
<emphasis id="B936C945FF9F844EC752FCF4F381D36E" box="[126,198,871,885]" italics="true" pageId="3" pageNumber="54">covered</emphasis>
by the lacrimal. The prefrontal sits in a
<emphasis box="[707,736,871,887]" italics="true" pageId="3" pageNumber="54">pit</emphasis>
<emphasis id="B936C945FF9F844EC5EFFCF4F1A7D36C" box="[707,736,871,887]" italics="true" pageId="3" pageNumber="54">pit</emphasis>
on
<emphasis box="[792,821,870,884]" italics="true" pageId="3" pageNumber="54">the</emphasis>
<emphasis id="B936C945FF9F844EC434FCF5F072D36F" box="[792,821,870,884]" italics="true" pageId="3" pageNumber="54">the</emphasis>
doraolateral surface of the frontal. Primitively (
<figureCitation box="[555,687,889,909]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="3" pageNumber="54">Figs. 1f, g</figureCitation>
<figureCitation id="137909D2FF9F844EC507FCE9F1E8D396" box="[555,687,889,909]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="3" pageNumber="54">Figs. 1f, g</figureCitation>
), the pit is overlapped posteriorly
<emphasis box="[257,276,912,928]" italics="true" pageId="3" pageNumber="54">by</emphasis>
<emphasis id="B936C945FF9F844EC62DFC03F253D3BB" box="[257,276,912,928]" italics="true" pageId="3" pageNumber="54">by</emphasis>
the dorsal surface of the frontal, so that
<emphasis box="[775,805,913,926]" italics="true" pageId="3" pageNumber="54">the</emphasis>
<emphasis id="B936C945FF9F844EC42BFC02F062D385" box="[775,805,913,926]" italics="true" pageId="3" pageNumber="54">the</emphasis>
caudal end of
<emphasis box="[127,156,935,949]" italics="true" pageId="3" pageNumber="54">the</emphasis>
<emphasis id="B936C945FF9F844EC753FC34F3DBD3AE" box="[127,156,935,949]" italics="true" pageId="3" pageNumber="54">the</emphasis>
prefrontal actually inserts into
<emphasis box="[571,580,938,948]" italics="true" pageId="3" pageNumber="54">a</emphasis>
<emphasis id="B936C945FF9F844EC517FC39F103D3AF" box="[571,580,938,948]" italics="true" pageId="3" pageNumber="54">a</emphasis>
socket in the frontal,
<emphasis box="[891,921,934,948]" italics="true" pageId="3" pageNumber="54">and</emphasis>
<emphasis bold="true" box="[946,965,934,947]" pageId="3" pageNumber="54">is</emphasis>
<emphasis id="B936C945FF9F844EC457FC35F0DED3AF" box="[891,921,934,948]" italics="true" pageId="3" pageNumber="54">and</emphasis>
<emphasis id="B936C945FF9F844EC49EFC35F082D3A8" bold="true" box="[946,965,934,947]" pageId="3" pageNumber="54">is</emphasis>
completely surrounded by that
<emphasis box="[456,501,956,970]" italics="true" pageId="3" pageNumber="54">bone</emphasis>
<emphasis id="B936C945FF9F844EC6E4FC2FF2B2D3D1" box="[456,501,956,970]" italics="true" pageId="3" pageNumber="54">bone</emphasis>
. ln more progressive forms (Molnar 1980;
<emphasis box="[126,192,979,995]" italics="true" pageId="3" pageNumber="54">Bakker</emphasis>
<emphasis id="B936C945FF9F844EC752FC40F387D3F8" box="[126,192,979,995]" italics="true" pageId="3" pageNumber="54">Bakker</emphasis>
, Williams and
<emphasis box="[364,429,978,995]" italics="true" pageId="3" pageNumber="54">Currie</emphasis>
<emphasis id="B936C945FF9F844EC640FC41F2EAD3F8" box="[364,429,978,995]" italics="true" pageId="3" pageNumber="54">Currie</emphasis>
, in preparation), the socket is lost, and one suspects that
<emphasis box="[287,326,999,1012]" italics="true" pageId="3" pageNumber="54">this</emphasis>
<emphasis id="B936C945FF9F844EC633FC74F201D3EF" box="[287,326,999,1012]" italics="true" pageId="3" pageNumber="54">this</emphasis>
is
<emphasis box="[384,413,998,1012]" italics="true" pageId="3" pageNumber="54">the</emphasis>
<emphasis id="B936C945FF9F844EC6ACFC75F2DAD3EF" box="[384,413,998,1012]" italics="true" pageId="3" pageNumber="54">the</emphasis>
case in
<taxonomicName baseAuthorityName="Russell" baseAuthorityYear="1970" box="[530,771,999,1019]" class="Reptilia" family="Tyrannosauridae" genus="Daspletosaurus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Dinosauria" pageId="3" pageNumber="54" phylum="Chordata" rank="species" species="torosus">Daspletosaurus torosus</taxonomicName>
<taxonomicName id="4C426ED4FF9F844EC53EFC74F044D3EE" authority="Russell, 1970" authorityName="Russell" authorityYear="1970" box="[530,771,999,1019]" class="Reptilia" family="Tyrannosauridae" genus="Daspletosaurus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Dinosauria" pageId="3" pageNumber="54" phylum="Chordata" rank="species" species="torosus">Daspletosaurus torosus</taxonomicName>
(
<figureCitation box="[801,886,998,1016]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="3" pageNumber="54">Fig. 1h</figureCitation>
). The orbital
<emphasis box="[211,242,1022,1035]" italics="true" pageId="3" pageNumber="54">rim</emphasis>
<figureCitation id="137909D2FF9F844EC40DFC75F031D3ED" box="[801,886,998,1016]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="3" pageNumber="54">Fig. 1h</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C35846DCFF9F844EC489FC74F2ABD53A" pageId="3" pageNumber="54" type="discussion">
<paragraph id="8BFD1557FF9F844EC489FC74F2ABD53A" blockId="3.[124,968,245,1427]" pageId="3" pageNumber="54">
The orbital
<emphasis id="B936C945FF9F844EC7FFFC6DF3B5D410" box="[211,242,1022,1035]" italics="true" pageId="3" pageNumber="54">rim</emphasis>
of the frontal
<emphasis box="[417,558,1021,1038]" italics="true" pageId="3" pageNumber="54">is very short</emphasis>
<emphasis id="B936C945FF9F844EC68DFC6DF169D415" box="[417,558,1021,1038]" italics="true" pageId="3" pageNumber="54">is very short</emphasis>
, and in
<emphasis box="[656,697,1024,1035]" italics="true" pageId="3" pageNumber="54">some</emphasis>
<emphasis id="B936C945FF9F844EC5BCFB93F1FED410" box="[656,697,1024,1035]" italics="true" pageId="3" pageNumber="54">some</emphasis>
species
<emphasis box="[801,941,1021,1035]" italics="true" pageId="3" pageNumber="54">is reduced to</emphasis>
<emphasis id="B936C945FF9F844EC40DFC6DF0EAD410" box="[801,941,1021,1035]" italics="true" pageId="3" pageNumber="54">is reduced to</emphasis>
a slot passing between the lacrimal
<emphasis box="[566,596,1042,1056]" italics="true" pageId="3" pageNumber="54">and</emphasis>
<emphasis id="B936C945FF9F844EC51AFB81F113D43B" box="[566,596,1042,1056]" italics="true" pageId="3" pageNumber="54">and</emphasis>
postorbital (
<figureCitation box="[782,876,1041,1060]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="3" pageNumber="54">Fig. 1g</figureCitation>
<figureCitation id="137909D2FF9F844EC422FB81F02BD43F" box="[782,876,1041,1060]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="3" pageNumber="54">Fig. 1g</figureCitation>
). The frontal-postorbital suture
<emphasis bold="true" box="[422,441,1065,1078]" pageId="3" pageNumber="54">is</emphasis>
<emphasis id="B936C945FF9F844EC68AFBBAF2FED42D" bold="true" box="[422,441,1065,1078]" pageId="3" pageNumber="54">is</emphasis>
expanded in all tyrannosaurids (
<figureCitation captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="3" pageNumber="54">Figs. 1f, g, h</figureCitation>
<figureCitation id="137909D2FF9F844EC414FBBBF3CCD455" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="3" pageNumber="54">Figs. 1f, g, h</figureCitation>
). At the rostral end of the
<emphasis box="[491,567,1088,1102]" italics="true" pageId="3" pageNumber="54">contact</emphasis>
<emphasis id="B936C945FF9F844EC6C7FBD3F170D455" box="[491,567,1088,1102]" italics="true" pageId="3" pageNumber="54">contact</emphasis>
, the frontal develops a pronounced buttress with a posterolaterally
<emphasis box="[487,572,1107,1121]" italics="true" pageId="3" pageNumber="54">oriented</emphasis>
<emphasis id="B936C945FF9F844EC6CBFBC0F17BD47A" box="[487,572,1107,1121]" italics="true" pageId="3" pageNumber="54">oriented</emphasis>
suture (
<figureCitation box="[675,755,1106,1125]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="3" pageNumber="54">
<emphasis box="[675,709,1106,1125]" italics="true" pageId="3" pageNumber="54">Fig</emphasis>
<figureCitation id="137909D2FF9F844EC58FFBC1F1B4D47E" box="[675,755,1106,1125]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="3" pageNumber="54">
<emphasis id="B936C945FF9F844EC58FFBC1F182D47E" box="[675,709,1106,1125]" italics="true" pageId="3" pageNumber="54">Fig</emphasis>
. 1f
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), behind
<emphasis box="[864,917,1107,1120]" italics="true" pageId="3" pageNumber="54">which</emphasis>
<emphasis id="B936C945FF9F844EC44CFBC0F0D2D47B" box="[864,917,1107,1120]" italics="true" pageId="3" pageNumber="54">which</emphasis>
the frontal is broadly overlapped by the postorbital. The relationship between
<emphasis bold="true" box="[126,155,1151,1164]" pageId="3" pageNumber="54">the</emphasis>
<emphasis id="B936C945FF9F844EC752FBECF3DCD497" bold="true" box="[126,155,1151,1164]" pageId="3" pageNumber="54">the</emphasis>
frontal and postorbital changes
<emphasis box="[572,613,1150,1163]" italics="true" pageId="3" pageNumber="54">both</emphasis>
<emphasis id="B936C945FF9F844EC510FBEDF122D490" box="[572,613,1150,1163]" italics="true" pageId="3" pageNumber="54">both</emphasis>
ontogenetically and in more progressive tyrannosaurids however, and the contact
<emphasis box="[726,799,1172,1185]" italics="true" pageId="3" pageNumber="54">becomes</emphasis>
<emphasis id="B936C945FF9F844EC5FAFB07F058D4BA" box="[726,799,1172,1185]" italics="true" pageId="3" pageNumber="54">becomes</emphasis>
more elongate rostrocaudally and more vertical. A rostrodorsal process of the parietals separates the frontals posteriorly, and the sagittal crest extends onto the frontals.
<emphasis box="[247,383,1235,1252]" italics="true" pageId="3" pageNumber="54">Tyrannosaurid</emphasis>
<emphasis id="B936C945FF9F844EC7DBFB40F238D4FF" box="[247,383,1235,1252]" italics="true" pageId="3" pageNumber="54">Tyrannosaurid</emphasis>
frontals are
<emphasis box="[550,667,1236,1253]" italics="true" pageId="3" pageNumber="54">essentially</emphasis>
<emphasis id="B936C945FF9F844EC50AFB47F1DCD4FE" box="[550,667,1236,1253]" italics="true" pageId="3" pageNumber="54">essentially</emphasis>
flat dorsally between the orbits. The temporal musculature extends far onto the dorssl surface of the
<emphasis box="[125,199,1279,1295]" italics="true" pageId="3" pageNumber="54">frontal</emphasis>
<emphasis id="B936C945FF9F844EC751FB6CF380D514" box="[125,199,1279,1295]" italics="true" pageId="3" pageNumber="54">frontal</emphasis>
, its anterior
<emphasis box="[361,446,1277,1295]" italics="true" pageId="3" pageNumber="54">boundary</emphasis>
<emphasis id="B936C945FF9F844EC645FB6EF2F9D514" box="[361,446,1277,1295]" italics="true" pageId="3" pageNumber="54">boundary</emphasis>
being
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<emphasis box="[549,581,1278,1292]" italics="true" pageId="3" pageNumber="54">low</emphasis>
<emphasis id="B936C945FF9F844EC522FA91F150D517" bold="true" box="[526,535,1282,1292]" pageId="3" pageNumber="54">a</emphasis>
<emphasis id="B936C945FF9F844EC509FB6DF102D517" box="[549,581,1278,1292]" italics="true" pageId="3" pageNumber="54">low</emphasis>
sinuous
<emphasis bold="true" box="[682,733,1279,1296]" pageId="3" pageNumber="54">ridge</emphasis>
<emphasis id="B936C945FF9F844EC586FB6CF19AD50B" bold="true" box="[682,733,1279,1296]" pageId="3" pageNumber="54">ridge</emphasis>
between the sagittal crest and the postorbital
<emphasis box="[400,486,1299,1313]" italics="true" pageId="3" pageNumber="54">buttress</emphasis>
<emphasis id="B936C945FF9F844EC6BCFA80F2A1D53A" box="[400,486,1299,1313]" italics="true" pageId="3" pageNumber="54">buttress</emphasis>
.
</paragraph>
</subSubSection>

View file

@ -1,150 +1,151 @@
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<emphasis id="B936C945FF9F844EC786FD9CF276D207" box="[170,305,527,540]" italics="true" pageId="3" pageNumber="54">Dromaeosaurus</emphasis>
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is a
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<emphasis id="B936C945FF9F844EC6AEFD81F2EDD206" box="[386,426,530,541]" italics="true" pageId="3" pageNumber="54">more</emphasis>
robust animal than
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Saurornitholeates
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<emphasis id="B936C945FF9F844EC471FD9CF0FAD239" box="[861,957,527,546]" italics="true" pageId="3" pageNumber="54">langstoni</emphasis>
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, and is much rarer (
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<tableCitation id="C6C020ECFF9F844EC663FDB0F2DBD22F" box="[335,412,547,564]" captionStart="Table 1" captionStartId="8.[155,196,207,219]" captionTargetBox="[148,822,355,952]" captionText="Table 1. Theropod frontals from Dinosaur Provincial Park and vicinity. Listing Includes skulls if the frontals are preserved. Abbreviations: AMNH, American Museum of Natural History; NMC, National Museum of Natural Sciences, National Museum of Canada: TMP, Tyrreoll Museum of Palaeontology; UA, University of Alberta; USNM, U.S. National Museum of Natural Sciences." httpUri="http://table.plazi.org/id/DF3D45DFFF948445C7B7FF5CF137D101" pageId="3" pageNumber="54" tableUuid="DF3D45DFFF948445C7B7FF5CF137D101">Table 1</tableCitation>
). The lacrimal slot (
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Fig.
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developed. In both
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) is well developed. In both
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5356
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and
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more than one species
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present in
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(
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than
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is more
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curved. As in
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, the posterodorsal surfaces of the paired frontals separate on the midline for an anteromedial process of the fused parietals (
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. 1e
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) in
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.
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View file

@ -1,98 +1,99 @@
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<taxonomicName id="4C426ED4FF9F844EC786FF64F297D111" authority="Sues, 1978" authorityName="Sues" authorityYear="1978" box="[170,464,246,266]" class="Reptilia" family="Dromaeosauridae" genus="Saurornitholestes" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Dinosauria" pageId="3" pageNumber="54" phylum="Chordata" rank="species" species="langstoni">Saurornitholestes langstoni</taxonomicName>
(
<figureCitation box="[499,594,245,266]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="3" pageNumber="54">Figs. 1d</figureCitation>
<figureCitation id="137909D2FF9F844EC6DFFF66F115D111" box="[499,594,245,266]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="3" pageNumber="54">Figs. 1d</figureCitation>
,
<figureCitation box="[626,636,247,263]" captionStart="FIG. 3" captionStartId="7.[98,123,1489,1502]" captionTargetBox="[0,1047,0,1479]" captionTargetPageId="7" captionText="FIG. 3 Saurornitholestes langstoni (TMP 80. 16. 312). Left frontal in (a) dorsal, (b) ventral, (c) medial and (d) posterior views. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676397" httpUri="https://zenodo.org/record/3676397/files/figure.png" pageId="3" pageNumber="54">3</figureCitation>
<figureCitation id="137909D2FF9F844EC55EFF64F13BD11C" box="[626,636,247,263]" captionStart="FIG. 3" captionStartId="7.[98,123,1489,1502]" captionTargetBox="[0,1047,0,1479]" captionTargetPageId="7" captionText="FIG. 3 Saurornitholestes langstoni (TMP 80. 16. 312). Left frontal in (a) dorsal, (b) ventral, (c) medial and (d) posterior views. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676397" httpUri="https://zenodo.org/record/3676397/files/figure.png" pageId="3" pageNumber="54">3</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection pageId="3" pageNumber="54" type="description">
<paragraph blockId="3.[124,968,245,1427]" pageId="3" pageNumber="54">
<subSubSection id="C35846DCFF9F844EC5B2FF6BF170D212" pageId="3" pageNumber="54" type="description">
<paragraph id="8BFD1557FF9F844EC5B2FF6BF170D212" blockId="3.[124,968,245,1427]" pageId="3" pageNumber="54">
is the most common small theropod in the Judith River Formation of Dinosaur Provincial Park, judging from the number o: frontais (Tsble l) and
<emphasis box="[590,641,291,305]" italics="true" pageId="3" pageNumber="54">teeth</emphasis>
<emphasis id="B936C945FF9F844EC562FEB0F1C6D12A" box="[590,641,291,305]" italics="true" pageId="3" pageNumber="54">teeth</emphasis>
(
<emphasis box="[665,733,289,306]" italics="true" pageId="3" pageNumber="54">Currie</emphasis>
<emphasis id="B936C945FF9F844EC5B5FEB2F19AD129" box="[665,733,289,306]" italics="true" pageId="3" pageNumber="54">Currie</emphasis>
, Rigby and Sloan, in preparation) recovered. In contrast with
<taxonomicName authorityName="Matthew &amp; Brown" authorityYear="1922" box="[588,729,314,329]" class="Reptilia" family="Dromaeosauridae" genus="Dromaeosaurus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Dinosauria" pageId="3" pageNumber="54" phylum="Chordata" rank="genus">Dromaeosaurus</taxonomicName>
<taxonomicName id="4C426ED4FF9F844EC560FEA9F19ED152" authorityName="Matthew &amp; Brown" authorityYear="1922" box="[588,729,314,329]" class="Reptilia" family="Dromaeosauridae" genus="Dromaeosaurus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Dinosauria" pageId="3" pageNumber="54" phylum="Chordata" rank="genus">Dromaeosaurus</taxonomicName>
, the medial prong of the nasal does not extend as far caudally over the frontal as the more lateral prong. The slot that the lacrimal passes through the frontal to contact the prefrontal. is relatively small (
<figureCitation box="[486,570,376,394]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="3" pageNumber="54">Fig. 1d</figureCitation>
<figureCitation id="137909D2FF9F844EC6CAFEEBF17DD193" box="[486,570,376,394]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="3" pageNumber="54">Fig. 1d</figureCitation>
). The frontal is somewhat bulbous caudally where it
<emphasis box="[337,399,401,412]" italics="true" pageId="3" pageNumber="54">curves</emphasis>
<emphasis id="B936C945FF9F844EC67DFE02F2C8D187" box="[337,399,401,412]" italics="true" pageId="3" pageNumber="54">curves</emphasis>
posteroventrally to
<emphasis box="[643,684,400,412]" italics="true" pageId="3" pageNumber="54">meet</emphasis>
<emphasis id="B936C945FF9F844EC5AFFE03F1EBD187" box="[643,684,400,412]" italics="true" pageId="3" pageNumber="54">meet</emphasis>
the parietal. A faint, sigmoidally
<emphasis box="[259,320,419,433]" italics="true" pageId="3" pageNumber="54">curved</emphasis>
<emphasis id="B936C945FF9F844EC62FFE30F207D1AA" box="[259,320,419,433]" italics="true" pageId="3" pageNumber="54">curved</emphasis>
ridge runs rostrolaterally onto the front
<emphasis box="[817,880,420,436]" italics="true" pageId="3" pageNumber="54">margin</emphasis>
<emphasis id="B936C945FF9F844EC41DFE37F037D1AF" box="[817,880,420,436]" italics="true" pageId="3" pageNumber="54">margin</emphasis>
of the postorbital process, and
<emphasis box="[423,474,442,455]" italics="true" pageId="3" pageNumber="54">marks</emphasis>
<emphasis id="B936C945FF9F844EC68BFE29F29DD1DC" box="[423,474,442,455]" italics="true" pageId="3" pageNumber="54">marks</emphasis>
the anterior limit of the supratemporal fenestra. Unlike
<taxonomicName authorityName="Matthew &amp; Brown" authorityYear="1922" box="[337,476,462,480]" class="Reptilia" family="Dromaeosauridae" genus="Dromaeosaurus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Dinosauria" pageId="3" pageNumber="54" phylum="Chordata" rank="genus">Dromaeosaurus</taxonomicName>
<taxonomicName id="4C426ED4FF9F844EC67DFE5DF29BD1FB" authorityName="Matthew &amp; Brown" authorityYear="1922" box="[337,476,462,480]" class="Reptilia" family="Dromaeosauridae" genus="Dromaeosaurus" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Dinosauria" pageId="3" pageNumber="54" phylum="Chordata" rank="genus">Dromaeosaurus</taxonomicName>
, the
<emphasis box="[561,634,463,480]" italics="true" pageId="3" pageNumber="54">portion</emphasis>
<emphasis id="B936C945FF9F844EC51DFE5CF13DD1FB" box="[561,634,463,480]" italics="true" pageId="3" pageNumber="54">portion</emphasis>
of the frontal within
<emphasis box="[936,966,462,476]" italics="true" pageId="3" pageNumber="54">the</emphasis>
<emphasis id="B936C945FF9F844EC484FE5DF081D1C7" box="[936,966,462,476]" italics="true" pageId="3" pageNumber="54">the</emphasis>
supratemporal fenestra is posterodorsally concave, and even forms a deep pit in
<emphasis box="[159,305,505,522]" italics="true" pageId="3" pageNumber="54">some specimens</emphasis>
<emphasis id="B936C945FF9F844EC7B3FE6EF276D211" box="[159,305,505,522]" italics="true" pageId="3" pageNumber="54">some specimens</emphasis>
(
<materialsCitation ID-GBIF-Occurrence="2545510070" box="[327,453,503,523]" collectionCode="TMP" pageId="3" pageNumber="54" specimenCode="TMP 86.77.57">
<collectionCode box="[327,359,503,520]" collectionName="Taiwan [Republic of China], Taipei, Taiwan Provincial Museum" pageId="3" pageNumber="54">TMP</collectionCode>
<materialsCitation id="3B2A1F0AFF9F844EC66BFE64F282D210" ID-GBIF-Occurrence="2545510070" box="[327,453,503,523]" collectionCode="TMP" pageId="3" pageNumber="54" specimenCode="TMP 86.77.57">
<collectionCode id="ED538D92FF9F844EC66BFE64F220D213" box="[327,359,503,520]" collectionName="Taiwan [Republic of China], Taipei, Taiwan Provincial Museum" pageId="3" pageNumber="54">TMP</collectionCode>
86.77.57
</materialsCitation>
,
<figureCitation box="[476,552,503,523]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="3" pageNumber="54">
<emphasis box="[476,508,506,523]" italics="true" pageId="3" pageNumber="54">Fig</emphasis>
<figureCitation id="137909D2FF9F844EC6F0FE69F16FD210" box="[476,552,503,523]" captionStart="FIG. 1" captionStartId="5.[93,121,1322,1333]" captionTargetBox="[183,864,202,1302]" captionTargetPageId="5" captionText="FIG. 1 Theropod frontals from Dinosaur Provincial Park. (a) Troodon formosus. TMP 86.49. 10; (b) Dromicelomimus samueli, TMP 85.56.62; (c) cf. Erilcosaurus sp., NMC 12355; (d) Saurornitholestes langstoni, TMP 86. 77. 57; (e) Dromaeosaurus albertensis, NMC 12349, AMNH 5356; (f) cf. Aublysodon sp., TMP 80.16.485; (g) cf. Gorgosaurus libratus, TMP 80.16.924; (h) Daspletosaurus torosus (after Russell. 1970). (1) Caudal limit of dorsalateral exposure of the lacrimal; (2) caudal limit of orbital rim; (3) caudal limit of postorbital suture; (4) lacrimal slot; (5) Postorbital buttress. Scale= 1cm." figureDoi="http://doi.org/10.5281/zenodo.3676393" httpUri="https://zenodo.org/record/3676393/files/figure.png" pageId="3" pageNumber="54">
<emphasis id="B936C945FF9F844EC6F0FE69F2BBD210" box="[476,508,506,523]" italics="true" pageId="3" pageNumber="54">Fig</emphasis>
. 1d
</figureCitation>
).