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<mods:title id="C7133D5C93469B2EFAE3FEE94FCBE9C3">Brachiopods from Late Jurassic-Early Cretaceous hydrocarbon seep deposits, central Spitsbergen, Svalbard</mods:title>
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<mods:affiliation id="0D4CAD2380DB0C306C02FD18B2D2FE1A">Natural History Museum, University of Oslo, P. O. Box 1172, NO- 0318 Oslo, Norway. &amp; Current address: Institute of Paleobiology, Polish Academy of Sciences, ul. Twarda 51 / 55, 00 - 818 Warszawa, Poland.</mods:affiliation>
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<treatment id="466F6C336254FFB196854704FDBB3103" ID-DOI="http://doi.org/10.5281/zenodo.4952546" ID-GBIF-Taxon="184851311" ID-Zenodo-Dep="4952546" LSID="urn:lsid:plazi:treatment:466F6C336254FFB196854704FDBB3103" httpUri="http://treatment.plazi.org/id/466F6C336254FFB196854704FDBB3103" lastPageId="14" lastPageNumber="515" pageId="12" pageNumber="513">
<subSubSection id="86DC8EAE6254FFB396854704FD5B3571" box="[151,655,1303,1330]" pageId="12" pageNumber="513" type="nomenclature">
<paragraph id="CE79DD256254FFB396854704FD5B3571" blockId="12.[151,655,1303,1363]" box="[151,655,1303,1330]" pageId="12" pageNumber="513">
<heading id="95316A496254FFB396854704FD5B3571" bold="true" box="[151,655,1303,1330]" fontSize="11" level="1" pageId="12" pageNumber="513" reason="1">
<taxonomicName id="09C6A6A66254FFB396854704FD5B3571" authority="Dagys, 1968" authorityName="Dagys" authorityYear="1968" box="[151,655,1303,1330]" class="Rhynchonellata" family="Rhynchonellidae" genus="Ptilorhynchia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rhynchonellida" pageId="12" pageNumber="513" phylum="Brachiopoda" rank="species" species="obscuricostata">
<emphasis id="FCB201376254FFB396854704FD5B3571" bold="true" box="[151,655,1303,1330]" pageId="12" pageNumber="513">
<emphasis id="FCB201376254FFB396854704FE263572" bold="true" box="[151,498,1303,1329]" italics="true" pageId="12" pageNumber="513">Ptilorhynchia obscuricostata</emphasis>
<bibRefCitation id="AA57A0D46254FFB397EB470BFD5B3571" author="Dagys, A. S." box="[505,655,1304,1330]" pageId="12" pageNumber="513" pagination="1 - 167" refId="ref14289" refString="Dagys, A. S. (1968) Jurskiye i rannemelovye brakhiopody Severa Sibiri [Jurassic and Early Cretaceous brachiopods from northern Siberia]. Akademia Nauk SSSR Sibiroskoe Otdelenie Institut Geologii I Geofiziki (IGIG) Trudy [Institute of Geology and Geophysics, Academy of Sciences of the USSR, Siberian Branch, Transactions], 41, 1 - 167. [In Russian]" type="journal article" year="1968">Dagys, 1968</bibRefCitation>
</emphasis>
</taxonomicName>
</heading>
</paragraph>
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<subSubSection id="86DC8EAE6254FFB396854729FC9435F4" pageId="12" pageNumber="513" type="description">
<paragraph id="CE79DD256254FFB396854729FEF83510" blockId="12.[151,655,1303,1363]" box="[151,300,1338,1363]" pageId="12" pageNumber="513">
<figureCitation id="56FDC1A06254FFB396854729FEF83510" box="[151,300,1338,1363]" captionStart="FIGURE 6" captionStartId="13.[151,250,1796,1818]" captionTargetBox="[152,1430,194,1774]" captionTargetId="figure-113@13.[150,1437,193,1774]" captionTargetPageId="13" captionText="FIGURE 6. 14. Ptilorhynchia aff. plumasensis Crickmay, USGS Mesozoic Locality 32032 (=80Ace119), Karluk Quadrangle, Alaska, Shelikof Formation, Callovian, Middle Jurassic, dorsal, ventral, lateral, and anterior views. 58. Ptilorhynchia jeletzkyi Owen, USGS Mesozoic locality 14496, cooccurs with Buchia mosquensis (von Buch), probably Naknek series, KimmeridgianTithonian(?), Upper Jurassic, McCarthy Quadrangle, Alaska. Collector, Fred H. Moffit, 1928. Dorsal, ventral, lateral, and anterior views.917. Ptilorhynchia obscuricostata Dagys. 912. PMO 224.880, seep 9, dorsal, ventral, lateral, and anterior views. 1317. PMO 224.881, seep 9, dorsal, ventral, lateral, anterior and posterior views. Scale bar = 1 cm." figureDoi="http://doi.org/10.5281/zenodo.4951772" httpUri="https://zenodo.org/record/4951772/files/figure.png" pageId="12" pageNumber="513">Fig. 6.96.17</figureCitation>
</paragraph>
<paragraph id="CE79DD256254FFB396854791FB9335DB" blockId="12.[151,1095,1410,1463]" box="[151,1095,1410,1432]" pageId="12" pageNumber="513">
1968
<taxonomicName id="09C6A6A66254FFB396FD4791FDC135DB" authority="Sandy &amp; Hryniewicz &amp; Hammer &amp; Nakrem &amp; Little, 2014" authorityName="Sandy &amp; Hryniewicz &amp; Hammer &amp; Nakrem &amp; Little" authorityYear="2014" box="[239,533,1410,1432]" class="Rhynchonellata" family="Rhynchonellidae" genus="Ptilorhynchia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rhynchonellida" pageId="12" pageNumber="513" phylum="Brachiopoda" rank="species" species="obscuricostata" status="sp. nov.">
<emphasis id="FCB201376254FFB396FD4791FDC135DB" box="[239,533,1410,1432]" italics="true" pageId="12" pageNumber="513">Ptilorhynchia obscuricostata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="E781BC4C6254FFB394094790FD4235DB" box="[539,662,1410,1432]" pageId="12" pageNumber="513" rank="species">new species</taxonomicNameLabel>
—Dagys, p. 63, pl. 5, fig. 6, 7, text-fig. 42.
</paragraph>
<paragraph id="CE79DD256254FFB3968547B2FC9435F4" blockId="12.[151,1095,1410,1463]" box="[151,832,1441,1463]" pageId="12" pageNumber="513">
<date id="BA78FBE56254FFB3968547B2FED535F4" box="[151,257,1441,1463]" pageId="12" pageNumber="513" value="2011-05">
2011
<taxonomicName id="09C6A6A66254FFB396FD47B1FED535F4" box="[239,257,1442,1463]" pageId="12" pageNumber="513" rank="variety" variety="partim">v.</taxonomicName>
</date>
partim
<taxonomicName id="09C6A6A66254FFB3974547B2FE0735F4" authorityName="Wisniewska" authorityYear="1932" box="[343,467,1441,1463]" class="Rhynchonellata" family="Basiliolidae" genus="Lacunosella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rhynchonellida" pageId="12" pageNumber="513" phylum="Brachiopoda" rank="genus">
<emphasis id="FCB201376254FFB3974547B2FE0735F4" box="[343,467,1441,1463]" italics="true" pageId="12" pageNumber="513">Lacunosella</emphasis>
</taxonomicName>
sp.—Hammer
<emphasis id="FCB201376254FFB3946547B1FD7E35F4" box="[631,682,1441,1463]" italics="true" pageId="12" pageNumber="513">et al.</emphasis>
, p. 21, table 2.
</paragraph>
</subSubSection>
<subSubSection id="86DC8EAE6254FFB3968547F7FED73663" pageId="12" pageNumber="513" type="materials_examined">
<paragraph id="CE79DD256254FFB3968547F7FED73663" blockId="12.[151,1437,1508,2037]" pageId="12" pageNumber="513">
<emphasis id="FCB201376254FFB3968547F7FE0635BE" bold="true" box="[151,466,1508,1533]" inLineHeading="true" pageId="12" pageNumber="513" reason="1">Material and occurrence.</emphasis>
Seep 3 (PMO 224.915), seep 9 (PMO 224.881, PMO 224.880), seep 12 (PMO 224.884).
</paragraph>
</subSubSection>
<subSubSection id="86DC8EAE6254FFB396D5443FFD3436F3" pageId="12" pageNumber="513" type="description">
<paragraph id="CE79DD256254FFB396D5443FFD3436F3" blockId="12.[151,1437,1508,2037]" pageId="12" pageNumber="513">
<emphasis id="FCB201376254FFB396D5443FFE8C3606" bold="true" box="[199,344,1580,1605]" inLineHeading="true" pageId="12" pageNumber="513" reason="1">Description.</emphasis>
Wide triangular outline. Biconvex profile. Broad flat-topped uniplication of the anterior commissure. Smooth shelled with weak or incipient costae developed at the anterior margin, primarily in the fold/ sulcus of the anterior commissure. A few growth lines are present. Median septum and dental lamellae are visible. Other internal structures have not been investigated.
</paragraph>
</subSubSection>
<subSubSection id="86DC8EAE6254FFB196D544AFFDBB3103" lastPageId="14" lastPageNumber="515" pageId="12" pageNumber="513" type="discussion">
<paragraph id="CE79DD256254FFB196D544AFFE9630BB" blockId="12.[151,1437,1508,2037]" lastBlockId="14.[151,1436,151,320]" lastPageId="14" lastPageNumber="515" pageId="12" pageNumber="513">
<emphasis id="FCB201376254FFB396D544AFFE983696" bold="true" box="[199,332,1724,1749]" inLineHeading="true" pageId="12" pageNumber="513" reason="1">Discussion.</emphasis>
The generally smooth and uniplicate form with the development of costae only towards the margin of the valves was one reason why this material was tentatively referred to
<taxonomicName id="09C6A6A66254FFB395CE44CCFBB136BB" authority="(Hammer et al. 2011)" authorityName="Wisniewska" authorityYear="1932" baseAuthorityName="Hammer" baseAuthorityYear="2011" box="[988,1125,1759,1784]" class="Rhynchonellata" family="Basiliolidae" genus="Lacunosella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rhynchonellida" pageId="12" pageNumber="513" phylum="Brachiopoda" rank="genus">
<emphasis id="FCB201376254FFB395CE44CCFBB136BB" box="[988,1125,1759,1784]" italics="true" pageId="12" pageNumber="513">Lacunosella</emphasis>
</taxonomicName>
(
<bibRefCitation id="AA57A0D46254FFB3926E44CCFAB436BB" author="Hammer, O. &amp; Nakrem, H. A. &amp; Little, C. T. S. &amp; Hryniewicz, K. &amp; Sandy, M. R. &amp; Hurum, J. H. &amp; Druckenmiller, P. &amp; Knutsen, E. M. &amp; Hoyberget, M." box="[1148,1376,1759,1784]" pageId="12" pageNumber="513" pagination="15 - 26" refId="ref14853" refString="Hammer, O., Nakrem, H. A., Little, C. T. S., Hryniewicz, K., Sandy, M. R., Hurum, J. H., Druckenmiller, P., Knutsen, E. M. &amp; Hoyberget, M. (2011) Hydrocarbon seeps from close to the Jurassic - Cretaceous boundary, Svalbard. Palaeogeography, Palaeoecology, Palaeoclimatology, 306, 15 - 26. http: // dx. doi. org / 10.1016 / j. palaeo. 2011.03.019" type="journal article" year="2011">
Hammer
<emphasis id="FCB201376254FFB392F544F2FACB36BB" box="[1255,1311,1759,1784]" italics="true" pageId="12" pageNumber="513">et al.</emphasis>
2011
</bibRefCitation>
), due to its resemblance to
<taxonomicName id="09C6A6A66254FFB397964516FD1D375E" authority="Owen (1976" authorityName="Owen" authorityYear="1976" box="[388,713,1796,1821]" class="Rhynchonellata" family="Basiliolidae" genus="Lacunosella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rhynchonellida" pageId="12" pageNumber="513" phylum="Brachiopoda" rank="species" species="groenlandica">
<emphasis id="FCB201376254FFB397964516FE47375F" box="[388,403,1797,1820]" italics="true" pageId="12" pageNumber="513">L</emphasis>
.
<emphasis id="FCB201376254FFB397B34517FDE2375E" box="[417,566,1796,1821]" italics="true" pageId="12" pageNumber="513">groenlandica</emphasis>
<bibRefCitation id="AA57A0D46254FFB3942E4517FD1D375E" author="Owen, E. F." box="[572,713,1796,1821]" pageId="12" pageNumber="513" pagination="1 - 19" refId="ref17259" refString="Owen, E. F. (1976) Some Lower Cretaceous brachiopods from East Greenland. Meddelelser om GrOnland, 171 (3), 1 - 19." type="journal article" year="1976">Owen (1976</bibRefCitation>
</taxonomicName>
; and in
<bibRefCitation id="AA57A0D46254FFB395334517FC24375E" author="Harper, D. A. T. &amp; Alsen, P. &amp; Owen, E. F. &amp; Sandy, M. R." box="[801,1008,1796,1821]" pageId="12" pageNumber="513" pagination="213 - 225" refId="ref14982" refString="Harper, D. A. T., Alsen, P., Owen, E. F. &amp; Sandy, M. R. (2005) Early Cretaceous brachiopods from North-East Greenland: biofacies and biogeography. Bulletin of the Geological Society of Denmark, 52, 213 - 225." type="journal article" year="2005">
Harper
<emphasis id="FCB201376254FFB395674516FC79375E" box="[885,941,1796,1821]" italics="true" pageId="12" pageNumber="513">et al.</emphasis>
2005
</bibRefCitation>
). However, the smooth shell, presence of costae at the valve margins, and broad uniplication of the anterior commissure are also characteristic of
<taxonomicName id="09C6A6A66254FFB39685455FFD523726" authority="(Dagys 1968)" baseAuthorityName="Dagys" baseAuthorityYear="1968" box="[151,646,1868,1893]" class="Rhynchonellata" family="Rhynchonellidae" genus="Ptilorhynchia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rhynchonellida" pageId="12" pageNumber="513" phylum="Brachiopoda" rank="species" species="obscuricostata">
<emphasis id="FCB201376254FFB39685455FFE0B3726" box="[151,479,1868,1893]" italics="true" pageId="12" pageNumber="513">Ptilorhynchia obscuricostata</emphasis>
(
<bibRefCitation id="AA57A0D46254FFB397E2455FFDAA3726" author="Dagys, A. S." box="[496,638,1868,1893]" pageId="12" pageNumber="513" pagination="1 - 167" refId="ref14289" refString="Dagys, A. S. (1968) Jurskiye i rannemelovye brakhiopody Severa Sibiri [Jurassic and Early Cretaceous brachiopods from northern Siberia]. Akademia Nauk SSSR Sibiroskoe Otdelenie Institut Geologii I Geofiziki (IGIG) Trudy [Institute of Geology and Geophysics, Academy of Sciences of the USSR, Siberian Branch, Transactions], 41, 1 - 167. [In Russian]" type="journal article" year="1968">Dagys 1968</bibRefCitation>
)
</taxonomicName>
. Even in the absence of serial sections of the present material, some useful observations can be made. The Spitsbergen specimens do not appear to show the massive shell-thickening of the ventral umbo that Owen observed in serial sections of
<taxonomicName id="09C6A6A66254FFB395274586FC3E37EE" authorityName="Owen" authorityYear="1976" box="[821,1002,1940,1965]" class="Rhynchonellata" family="Basiliolidae" genus="Lacunosella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rhynchonellida" pageId="12" pageNumber="513" phylum="Brachiopoda" rank="species" species="groenlandica">
<emphasis id="FCB201376254FFB395274586FC9037EF" box="[821,836,1941,1964]" italics="true" pageId="12" pageNumber="513">L</emphasis>
.
<emphasis id="FCB201376254FFB395474587FC3E37EE" box="[853,1002,1940,1965]" italics="true" pageId="12" pageNumber="513">groenlandica</emphasis>
</taxonomicName>
(
<bibRefCitation id="AA57A0D46254FFB395E84587FB5637EE" author="Owen, E. F." box="[1018,1154,1940,1965]" pageId="12" pageNumber="513" pagination="1 - 19" refId="ref17259" refString="Owen, E. F. (1976) Some Lower Cretaceous brachiopods from East Greenland. Meddelelser om GrOnland, 171 (3), 1 - 19." type="journal article" year="1976">Owen 1976</bibRefCitation>
, fig. 3). The presence of distinct dental lamellae in the umbo of the ventral valve is consistent with
<taxonomicName id="09C6A6A66254FFB3923345ABFB6E3792" authorityName="Crickmay" authorityYear="1933" box="[1057,1210,1976,2001]" class="Rhynchonellata" family="Rhynchonellidae" genus="Ptilorhynchia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rhynchonellida" pageId="12" pageNumber="513" phylum="Brachiopoda" rank="genus">
<emphasis id="FCB201376254FFB3923345ABFB6E3792" box="[1057,1210,1976,2001]" italics="true" pageId="12" pageNumber="513">Ptilorhynchia</emphasis>
</taxonomicName>
, but of course not diagnostic of this genus as they are present in many rhynchonellide genera. In
<taxonomicName id="09C6A6A66254FFB3920245CEFADB37B6" authority="Owen" authorityName="Owen" authorityYear="1976" box="[1040,1295,2012,2037]" class="Rhynchonellata" family="Basiliolidae" genus="Lacunosella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rhynchonellida" pageId="12" pageNumber="513" phylum="Brachiopoda" rank="species" species="groenlandica">
<emphasis id="FCB201376254FFB3920245CEFB1037B6" box="[1040,1220,2012,2037]" italics="true" pageId="12" pageNumber="513">L. groenlandica</emphasis>
Owen
</taxonomicName>
dental lamellae are massively overgrown (
<bibRefCitation id="AA57A0D46256FFB194214284FD6930F3" author="Owen, E. F." box="[563,701,151,176]" pageId="14" pageNumber="515" pagination="1 - 19" refId="ref17259" refString="Owen, E. F. (1976) Some Lower Cretaceous brachiopods from East Greenland. Meddelelser om GrOnland, 171 (3), 1 - 19." type="journal article" year="1976">Owen 1976</bibRefCitation>
, fig. 3). A median septum is present in the dorsal valve of the Spitsbergen material whereas
<taxonomicName id="09C6A6A66256FFB197FD42AFFDAC3096" authorityName="Wisniewska" authorityYear="1932" box="[495,632,188,213]" class="Rhynchonellata" family="Basiliolidae" genus="Lacunosella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rhynchonellida" pageId="14" pageNumber="515" phylum="Brachiopoda" rank="genus">
<emphasis id="FCB201376256FFB197FD42AFFDAC3096" box="[495,632,188,213]" italics="true" pageId="14" pageNumber="515">Lacunosella</emphasis>
</taxonomicName>
lacks a median septum (e.g.
<bibRefCitation id="AA57A0D46256FFB195DF42AFFB813096" author="Owen, E. F." box="[973,1109,188,213]" pageId="14" pageNumber="515" pagination="1 - 19" refId="ref17259" refString="Owen, E. F. (1976) Some Lower Cretaceous brachiopods from East Greenland. Meddelelser om GrOnland, 171 (3), 1 - 19." type="journal article" year="1976">Owen 1976</bibRefCitation>
, fig. 3; Manceñido &amp;
<bibRefCitation id="AA57A0D46256FFB1934B42AFFF0630BB" author="Owen, E. F. &amp; Mancenido, M. O." pageId="14" pageNumber="515" pagination="1279 - 1308" refId="ref17324" refString="Owen, E. F. &amp; Mancenido, M. O. (2002) Rhynchonelloidea. In: Kaesler, R. (Ed.), Treatise on Invertebrate Paleontology, Part H (Brachiopoda Revised) 4, The Geological Society of America and The University of Kansas Press, Boulder, Colorado and Lawrence, Kansas, pp. 1279 - 1308." type="book chapter" year="2002">Owen 2002</bibRefCitation>
, p. 1208).
</paragraph>
<caption id="9AB98DAD6255FFB296854517FAFF37F0" ID-DOI="http://doi.org/10.5281/zenodo.4951772" ID-Zenodo-Dep="4951772" httpUri="https://zenodo.org/record/4951772/files/figure.png" pageId="13" pageNumber="514" startId="13.[151,250,1796,1818]" targetBox="[152,1430,194,1774]" targetPageId="13">
<paragraph id="CE79DD256255FFB296854517FAFF37F0" blockId="13.[151,1436,1796,1971]" pageId="13" pageNumber="514">
<emphasis id="FCB201376255FFB296854517FEC63759" bold="true" box="[151,274,1796,1818]" pageId="13" pageNumber="514">FIGURE 6.</emphasis>
14.
<taxonomicName id="09C6A6A66255FFB297584517FC213759" authority="Crickmay, USGS Mesozoic Locality" authorityName="Crickmay, USGS Mesozoic Locality" authorityYear="1933" box="[330,1013,1796,1818]" class="Rhynchonellata" family="Rhynchonellidae" genus="Ptilorhynchia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rhynchonellida" pageId="13" pageNumber="514" phylum="Brachiopoda" rank="species" species="plumasensis">
<emphasis id="FCB201376255FFB297584517FE013759" box="[330,469,1796,1818]" italics="true" pageId="13" pageNumber="514">Ptilorhynchia</emphasis>
aff.
<emphasis id="FCB201376255FFB294114517FDAB3759" box="[515,639,1796,1818]" italics="true" pageId="13" pageNumber="514">plumasensis</emphasis>
Crickmay, USGS Mesozoic Locality
</taxonomicName>
32032 (=80Ace119), Karluk Quadrangle, Alaska, Shelikof Formation, Callovian, Middle Jurassic, dorsal, ventral, lateral, and anterior views. 58.
<taxonomicName id="09C6A6A66255FFB292AA4531FE4B3714" authority="Owen, USGS Mesozoic" authorityName="Owen, USGS Mesozoic" authorityYear="1972" class="Rhynchonellata" family="Rhynchonellidae" genus="Ptilorhynchia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rhynchonellida" pageId="13" pageNumber="514" phylum="Brachiopoda" rank="species" species="jeletzkyi">
<emphasis id="FCB201376255FFB292AA4531FA48377B" box="[1208,1436,1826,1848]" italics="true" pageId="13" pageNumber="514">Ptilorhynchia jeletzkyi</emphasis>
Owen, USGS Mesozoic
</taxonomicName>
locality 14496, cooccurs with
<taxonomicName id="09C6A6A66255FFB2950E4552FBAF3714" authority="(von Buch)" baseAuthorityName="von Buch" box="[796,1147,1857,1879]" class="Bivalvia" family="Buchiidae" genus="Buchia" higherTaxonomySource="CoL" kingdom="Plantae" order="Pectinida" pageId="13" pageNumber="514" phylum="Mollusca" rank="species" species="mosquensis">
<emphasis id="FCB201376255FFB2950E4552FC3D3714" box="[796,1001,1857,1879]" italics="true" pageId="13" pageNumber="514">Buchia mosquensis</emphasis>
(von Buch)
</taxonomicName>
, probably Naknek series, KimmeridgianTithonian(?), Upper Jurassic, McCarthy Quadrangle, Alaska. Collector, Fred H. Moffit, 1928. Dorsal, ventral, lateral, and anterior views.917.
<taxonomicName id="09C6A6A66255FFB297F7456DFC8F37D7" authority="Dagys." authorityName="Dagys." box="[485,859,1918,1940]" class="Rhynchonellata" family="Rhynchonellidae" genus="Ptilorhynchia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rhynchonellida" pageId="13" pageNumber="514" phylum="Brachiopoda" rank="species" species="obscuricostata">
<emphasis id="FCB201376255FFB297F7456DFCD837D7" box="[485,780,1918,1940]" italics="true" pageId="13" pageNumber="514">Ptilorhynchia obscuricostata</emphasis>
Dagys.
</taxonomicName>
912. PMO 224.880, seep 9, dorsal, ventral, lateral, and anterior views. 1317. PMO 224.881, seep 9, dorsal, ventral, lateral, anterior and posterior views. Scale bar = 1 cm.
</paragraph>
</caption>
<paragraph id="CE79DD256256FFB196D54317FDBB3103" blockId="14.[151,1436,151,320]" pageId="14" pageNumber="515">
<emphasis id="FCB201376256FFB196D54317FD1F315E" bold="true" box="[199,715,260,285]" inLineHeading="true" pageId="14" pageNumber="515" reason="1">Stratigraphic and geographic distribution.</emphasis>
Upper Volgianuppermost Ryazanian, Spitsbergen and Lower Volgian of northern Siberia (
<bibRefCitation id="AA57A0D46256FFB197C54334FDB73103" author="Dagys, A. S." box="[471,611,295,320]" pageId="14" pageNumber="515" pagination="1 - 167" refId="ref14289" refString="Dagys, A. S. (1968) Jurskiye i rannemelovye brakhiopody Severa Sibiri [Jurassic and Early Cretaceous brachiopods from northern Siberia]. Akademia Nauk SSSR Sibiroskoe Otdelenie Institut Geologii I Geofiziki (IGIG) Trudy [Institute of Geology and Geophysics, Academy of Sciences of the USSR, Siberian Branch, Transactions], 41, 1 - 167. [In Russian]" type="journal article" year="1968">Dagys 1968</bibRefCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>