274 lines
34 KiB
XML
274 lines
34 KiB
XML
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<mods:title id="4D34286D919379223F679B90478336A7">Trilobites and agnostids from the Goyder Formation (Cambrian Series 3, Guzhangian; Mindyallan), Amadeus Basin, central Australia</mods:title>
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<mods:namePart id="201DFA80C9224C4B28F6249D4C342EEB">Smith, Patrick M.</mods:namePart>
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<mods:namePart id="71A2F56661F786F1149EF00D9C5EE4E4">Paterson, John R.</mods:namePart>
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<mods:namePart id="3CA3E5A218A2865D2C5CAF336066E560">Brock, Glenn A.</mods:namePart>
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<mods:title id="293053E5FA7C1EF70004B24656924F8B">Zootaxa</mods:title>
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<mods:date id="91475C76FE80A47E2F36A58AE3C8CFAA">2018</mods:date>
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<mods:number id="596E00AD959CA5BAF6C83C23C8A0C383">2018-03-19</mods:number>
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<mods:number id="93BEA717728307F6492813301E79500C">4396</mods:number>
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<treatment id="038CC426FF89FFA1FF399A56FEE4FF36" ID-DOI="http://doi.org/10.5281/zenodo.5980820" ID-GBIF-Taxon="142340482" ID-Zenodo-Dep="5980820" LSID="urn:lsid:plazi:treatment:038CC426FF89FFA1FF399A56FEE4FF36" httpUri="http://treatment.plazi.org/id/038CC426FF89FFA1FF399A56FEE4FF36" lastPageId="40" lastPageNumber="40" pageId="38" pageNumber="39">
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<subSubSection id="C33F26BBFF89FFAFFF399A56FF7FF881" pageId="38" pageNumber="39" type="nomenclature">
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<paragraph id="8B9A7530FF89FFAFFF399A56FDC2F8A2" blockId="38.[151,603,1831,1890]" box="[151,603,1831,1857]" pageId="38" pageNumber="39">
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<heading id="D0D2C25CFF89FFAFFF399A56FDC2F8A2" bold="true" box="[151,603,1831,1857]" fontSize="11" level="1" pageId="38" pageNumber="39" reason="1">
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<emphasis id="B951A922FF89FFAFFF399A56FDC2F8A2" bold="true" box="[151,603,1831,1857]" pageId="38" pageNumber="39">
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<taxonomicName id="4C250EB3FF89FFAFFF399A56FED9F8A2" ID-CoL="6DLM" authorityName="Poletaeva" authorityYear="1960" box="[151,320,1831,1857]" class="Trilobita" family="Lichakephalidae" genus="Paraacidaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lichida" pageId="38" pageNumber="39" phylum="Arthropoda" rank="genus">
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<emphasis id="B951A922FF89FFAFFF399A56FED9F8A2" bold="true" box="[151,320,1831,1857]" italics="true" pageId="38" pageNumber="39">Paraacidaspis</emphasis>
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</taxonomicName>
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?
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<emphasis id="B951A922FF89FFAFFEF89A56FE21F8A2" bold="true" box="[342,440,1831,1857]" italics="true" pageId="38" pageNumber="39">priscilla</emphasis>
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(Öpik, 1967)
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</emphasis>
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</heading>
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</paragraph>
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<paragraph id="8B9A7530FF89FFAFFF399A38FF7FF881" blockId="38.[151,603,1831,1890]" box="[151,230,1865,1890]" pageId="38" pageNumber="39">
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<figureCitation id="131E69B5FF89FFAFFF399A38FF7FF881" box="[151,230,1865,1890]" captionStart="FIGURE 19" captionStartId="40.[151,250,810,832]" captionTargetBox="[162,1427,274,779]" captionTargetId="figure@40.[151,1435,267,789]" captionTargetPageId="40" captionText="FIGURE 19. Paraacidaspis? priscilla (Öpik, 1967). A comes from sample GOY/109.2; and B–F come from spot locality AS168. A, CPC42330, partial pygidium. B, CPC42331, partial pygidium, latex cast. C, CPC42332, partial pygidium. D, CPC42333, partial pygidium. E, CPC42334, partial pygidium, latex cast. F, CPC42335, partial pygidium. All scale bars are 2 mm, except C = 1 mm." httpUri="https://zenodo.org/record/1202761/files/figure.png" pageId="38" pageNumber="39">Fig. 19</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection id="C33F26BBFF89FFAFFF399AE0FD7CF844" box="[151,741,1937,1959]" pageId="38" pageNumber="39" type="description">
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<paragraph id="8B9A7530FF89FFAFFF399AE0FD7CF844" blockId="38.[151,741,1937,1959]" box="[151,741,1937,1959]" pageId="38" pageNumber="39">
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1967
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<taxonomicName id="4C250EB3FF89FFAFFF7E9AE0FE8CF844" authorityName="Walcott" authorityYear="1914" box="[208,277,1937,1959]" class="Trilobita" family="Saukiidae" genus="Saukia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Asaphida" pageId="38" pageNumber="39" phylum="Arthropoda" rank="genus">
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<emphasis id="B951A922FF89FFAFFF7E9AE0FE8CF844" box="[208,277,1937,1959]" italics="true" pageId="38" pageNumber="39">Saukia</emphasis>
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</taxonomicName>
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?
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<emphasis id="B951A922FF89FFAFFE889AE0FEE3F844" box="[294,378,1937,1959]" italics="true" pageId="38" pageNumber="39">priscilla</emphasis>
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; Öpik, p. 250–251, pl. 30, figs 5–7.
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</paragraph>
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</subSubSection>
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<subSubSection id="C33F26BBFF89FFAFFF399AA5FB65F80E" box="[151,1276,2004,2029]" pageId="38" pageNumber="39" type="materials_examined">
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<paragraph id="8B9A7530FF89FFAFFF399AA5FB65F80E" blockId="38.[151,1276,2004,2029]" box="[151,1276,2004,2029]" pageId="38" pageNumber="39">
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<emphasis id="B951A922FF89FFAFFF399AA5FE9FF80E" bold="true" box="[151,262,2004,2029]" pageId="38" pageNumber="39">Material.</emphasis>
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Six pygidia figured, CPC42330–CPC42335. Four pygidia not figured (mostly fragments).
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</paragraph>
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</subSubSection>
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<subSubSection id="C33F26BBFF88FFAEFF699DE6FCDAFD66" pageId="39" pageNumber="40" type="description">
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<paragraph id="8B9A7530FF88FFAEFF699DE6FEB3FDDE" blockId="39.[151,1437,151,2013]" pageId="39" pageNumber="40">
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<emphasis id="B951A922FF88FFAEFF699DE6FEC0FF53" bold="true" box="[199,345,151,176]" pageId="39" pageNumber="40">Description.</emphasis>
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Pygidium up to
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<quantity id="4CDDD8D5FF88FFAEFDBB9DE6FDCEFF4C" box="[533,599,151,176]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" pageId="39" pageNumber="40" unit="mm" value="5.0">5 mm</quantity>
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long (sag.), semicircular, only slightly convex, length:width ratio of 65%. Anterior margin slightly arched forward. Posterior margin broadly rounded, slight anterior inflection in margin medially near the postaxial ridge. Axis prominent, moderately narrow (tr.), tapering posteriorly, width:length ratio of 71%; small, occupying about 60% of sagittal length of pygidium. Articulating half-ring narrow (sag.), defined by narrow (sag.), shallow articulating furrow. Five moderately well developed to faint axial rings present, separated by shallow, narrow (sag.) inter-ring furrows. Terminal piece small. Long (sag.), postaxial ridge continues from the terminal piece until just before the posterior border, ridge the same width (tr.) as the terminal piece. Axial furrow deep and narrow (tr.), fading around terminal piece. Pleural regions slightly convex, with five narrow (exsag.), shallow pleural furrows that terminate just before reaching margin; pleural furrows directed posterolaterally; five distinct, shallow, narrow (exsag.) interpleural furrows present, following the same course as pleural furrows, dividing the pleura into a slightly narrower (exsag.) anterior band and a wider (exsag.) posterior band. Border not well defined.
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</paragraph>
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<paragraph id="8B9A7530FF88FFAEFF699F39FD0EFD83" blockId="39.[151,1437,151,2013]" box="[199,663,583,608]" pageId="39" pageNumber="40">Prosopon over pygidium of fine pustules.</paragraph>
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<paragraph id="8B9A7530FF88FFAEFF699F1DFCDAFD66" blockId="39.[151,1437,151,2013]" box="[199,835,620,645]" pageId="39" pageNumber="40">Cephalon, hypostome, rostral plate and thorax unknown.</paragraph>
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</subSubSection>
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<subSubSection id="C33F26BBFF88FFAEFF699FFEFB80F85A" pageId="39" pageNumber="40" type="discussion">
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<paragraph id="8B9A7530FF88FFAEFF699FFEFE5FFC46" blockId="39.[151,1437,151,2013]" pageId="39" pageNumber="40">
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<emphasis id="B951A922FF88FFAEFF699FFEFED5FD4B" bold="true" box="[199,332,655,680]" pageId="39" pageNumber="40">Discussion.</emphasis>
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The pygidia from the Goyder Formation are almost identical to those reported as
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<taxonomicName id="4C250EB3FF88FFAEFB719FFEFAB2FD4B" authorityName="Walcott" authorityYear="1914" box="[1247,1323,655,680]" class="Trilobita" family="Saukiidae" genus="Saukia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Asaphida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">
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<emphasis id="B951A922FF88FFAEFB719FFEFAB2FD4B" box="[1247,1323,655,680]" italics="true" pageId="39" pageNumber="40">Saukia</emphasis>
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</taxonomicName>
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?
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<emphasis id="B951A922FF88FFAEFA909FFEFA02FD4B" box="[1342,1435,655,680]" italics="true" pageId="39" pageNumber="40">priscilla</emphasis>
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by Öpik (1967) from the Mindyallan O’Hara Shale and
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<taxonomicName id="4C250EB3FF88FFAEFCB89FC5FC65FD2E" authority="Limestone" authorityName="Limestone (Opik" authorityYear="1961" box="[790,1020,692,717]" class="Insecta" family="Morabidae" genus="Georgina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthoptera" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">Georgina Limestone</taxonomicName>
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in the
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<taxonomicName id="4C250EB3FF88FFAEFBE09FC5FADAFD2E" authority="Basin. Both" authorityName="Basin. Both" box="[1102,1347,692,717]" class="Insecta" family="Morabidae" genus="Georgina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthoptera" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">Georgina Basin. Both</taxonomicName>
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show a semicircular outline, a short axis, five axial rings (see Opik 1967, pl. 30, fig. 7), a long (sag.) postaxial ridge, five narrow (exsag.) pleural and interpleural furrows, pleurae divided into a narrow anterior and wide posterior bands, no pygidial border, and a fine pustulose ornament. The only minor difference is that the
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<taxonomicName id="4C250EB3FF88FFAEFB219E6EFAA6FCDB" authority="Basin" authorityName="Basin" box="[1167,1343,799,824]" class="Insecta" family="Morabidae" genus="Georgina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthoptera" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">Georgina Basin</taxonomicName>
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pygidia lack the subtle indentation in the posteromedial margin, immediately behind the postaxial ridge. These slight variations are more likely to be preservational, since two of the three
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<taxonomicName id="4C250EB3FF88FFAEFC6D9E16FBECFC63" authority="Basin" authorityName="Basin" box="[963,1141,871,896]" class="Insecta" family="Morabidae" genus="Georgina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthoptera" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">Georgina Basin</taxonomicName>
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specimens do not have a complete posterior margin.
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</paragraph>
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<paragraph id="8B9A7530FF88FFAEFF699EDEFA05FA7F" blockId="39.[151,1437,151,2013]" pageId="39" pageNumber="40">
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Öpik (1967) tentatively assigned the material from the
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<taxonomicName id="4C250EB3FF88FFAEFCC29EDEFBBAFC2B" authority="Basin" authorityName="Basin" box="[876,1059,943,968]" class="Insecta" family="Morabidae" genus="Georgina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthoptera" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">Georgina Basin</taxonomicName>
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to
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<taxonomicName id="4C250EB3FF88FFAEFBFB9EDEFAC0FC2B" authority="Walcott, 1914" authorityName="Walcott" authorityYear="1914" box="[1109,1369,943,968]" class="Trilobita" family="Saukiidae" genus="Saukia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Asaphida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">
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<emphasis id="B951A922FF88FFAEFBFB9EDEFB38FC2B" box="[1109,1185,943,968]" italics="true" pageId="39" pageNumber="40">Saukia</emphasis>
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<bibRefCitation id="EFB408C1FF88FFAEFB1E9EDEFAC0FC2B" box="[1200,1369,943,968]" pageId="39" pageNumber="40" refId="ref46274" refString="Walcott, C. D. (1914) Dikelocephalus and other genera of the Dikelocephalidae. Smithsonian Miscellaneous Collections, 64, 157 - 258." type="journal article">Walcott, 1914</bibRefCitation>
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</taxonomicName>
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. This assignment was largely based on the presence of five axial rings and five pleural furrows, which Öpik (1967) suggested was similar to both
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<taxonomicName id="4C250EB3FF88FFAEFE489E86FDABFBF3" authorityName="Walcott" authorityYear="1914" box="[486,562,1015,1040]" class="Trilobita" family="Saukiidae" genus="Saukia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Asaphida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">
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<emphasis id="B951A922FF88FFAEFE489E86FDABFBF3" box="[486,562,1015,1040]" italics="true" pageId="39" pageNumber="40">Saukia</emphasis>
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</taxonomicName>
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and
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<taxonomicName id="4C250EB3FF88FFAEFDC69E86FC56FBF3" authority="Ulrich & Resser, 1933" authorityName="Ulrich & Resser" authorityYear="1933" box="[616,975,1015,1040]" class="Trilobita" family="Saukiidae" genus="Tellerina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Asaphida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">
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<emphasis id="B951A922FF88FFAEFDC69E86FD55FBF3" box="[616,716,1015,1040]" italics="true" pageId="39" pageNumber="40">Tellerina</emphasis>
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<bibRefCitation id="EFB408C1FF88FFAEFD7D9E86FC56FBF3" box="[723,975,1015,1040]" pageId="39" pageNumber="40" refId="ref46063" refString="Ulrich, E. O. & Resser, C. E. (1933) The Cambrian of the Upper Mississippi Valley. Part 2: Saukiinae. Bulletin of the Public Museum of Milwaukee, 12, 123 - 306." type="journal article">Ulrich & Resser, 1933</bibRefCitation>
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</taxonomicName>
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. The pygidia illustrated here and by Öpik (1967) are unlikely to belong to either of these genera, since
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<taxonomicName id="4C250EB3FF88FFAEFC93996DFC13FBD6" authorityName="Walcott" authorityYear="1914" box="[829,906,1052,1077]" class="Trilobita" family="Saukiidae" genus="Saukia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Asaphida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">
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<emphasis id="B951A922FF88FFAEFC93996DFC13FBD6" box="[829,906,1052,1077]" italics="true" pageId="39" pageNumber="40">Saukia</emphasis>
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</taxonomicName>
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and
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<taxonomicName id="4C250EB3FF88FFAEFC6E996DFBBDFBD6" authorityName="Ulrich & Resser" authorityYear="1933" box="[960,1060,1052,1077]" class="Trilobita" family="Saukiidae" genus="Tellerina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Asaphida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">
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<emphasis id="B951A922FF88FFAEFC6E996DFBBDFBD6" box="[960,1060,1052,1077]" italics="true" pageId="39" pageNumber="40">Tellerina</emphasis>
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</taxonomicName>
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typically have a shorter postaxial ridge, and shorter (tr.) pleural and interpleural furrows. A more compelling comparison can be made with
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<taxonomicName id="4C250EB3FF88FFAEFF399915FEA0FB9E" authorityName="Poletaeva" authorityYear="1960" box="[151,313,1124,1149]" class="Trilobita" family="Lichakephalidae" genus="Paraacidaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lichida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">
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<emphasis id="B951A922FF88FFAEFF399915FEA0FB9E" box="[151,313,1124,1149]" italics="true" pageId="39" pageNumber="40">Paraacidaspis</emphasis>
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</taxonomicName>
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, especially
|
||
<taxonomicName id="4C250EB3FF88FFAEFE109914FC19FB9E" authority="Egorova in Poletaeva, 1960" authorityName="Egorova in Poletaeva" authorityYear="1960" box="[446,896,1124,1149]" class="Trilobita" family="Lichakephalidae" genus="Paraacidaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lichida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="species" species="hunanica">
|
||
<emphasis id="B951A922FF88FFAEFE109914FDDBFB9E" box="[446,578,1124,1149]" italics="true" pageId="39" pageNumber="40">P. hunanica</emphasis>
|
||
Egorova in
|
||
<bibRefCitation id="EFB408C1FF88FFAEFD639915FC19FB9E" box="[717,896,1124,1149]" pageId="39" pageNumber="40" refId="ref44560" refString="Poletaeva, O. K. (1960) Novye rody i vidy kembriyskikh trilobitov zapadnoy Sibiri. Trudy Sibirskiy Nauchno-issledovat'skiy Institut Geologiy, Geofiziki i Mineral'nogo Syr'ya (SNIIGGIMS), 8, 67 - 71. [in Russian]" type="journal article">Poletaeva, 1960</bibRefCitation>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C250EB3FF88FFAEFC199915FBC0FB9E" authorityName="Poletaeva" authorityYear="1960" box="[951,1113,1124,1149]" class="Trilobita" family="Lichakephalidae" genus="Paraacidaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lichida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B951A922FF88FFAEFC199915FBC0FB9E" box="[951,1113,1124,1149]" italics="true" pageId="39" pageNumber="40">Paraacidaspis</emphasis>
|
||
</taxonomicName>
|
||
sp. (Peng
|
||
<emphasis id="B951A922FF88FFAEFB7F9914FA9BFB9E" box="[1233,1282,1124,1149]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
|
||
. 2004a) from the Guzhangian of South
|
||
<collectingCountry id="F33235A0FF88FFAEFE1799F6FE66FB43" box="[441,511,1159,1184]" name="China" pageId="39" pageNumber="40">China</collectingCountry>
|
||
, and
|
||
<taxonomicName id="4C250EB3FF88FFAEFD9299F8FBBBFB43" authority="Shergold, Feist & Vizcaino, 2000" authorityName="Shergold, Feist & Vizcaino" authorityYear="2000" box="[572,1058,1159,1184]" class="Trilobita" family="Lichakephalidae" genus="Paraacidaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lichida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="species" species="ultima">
|
||
<emphasis id="B951A922FF88FFAEFD9299F8FD39FB43" box="[572,672,1159,1184]" italics="true" pageId="39" pageNumber="40">P. ultima</emphasis>
|
||
<bibRefCitation id="EFB408C1FF88FFAEFD0699F6FBBBFB43" box="[680,1058,1159,1184]" pageId="39" pageNumber="40" refId="ref45467" refString="Shergold, J. H., Feist, R. & Vizcaino, D. (2000) Early Late Cambrian trilobites of Australo-Sinian aspect from the Montagne Noire, southern France. Palaeontology, 43, 599 - 632. https: // doi. org / 10.1111 / 1475 - 4983.00142" type="journal article">Shergold, Feist & Vizcaino, 2000</bibRefCitation>
|
||
</taxonomicName>
|
||
from the Guzhangian–Paibian of southern
|
||
<collectingCountry id="F33235A0FF88FFAEFEAE99DCFEC9FB27" box="[256,336,1197,1220]" name="France" pageId="39" pageNumber="40">France</collectingCountry>
|
||
.
|
||
<taxonomicName id="4C250EB3FF88FFAEFEF299DDFDF7FB26" authorityName="Egorova in Poletaeva" authorityYear="1960" box="[348,622,1196,1221]" class="Trilobita" family="Lichakephalidae" genus="Paraacidaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lichida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="species" species="hunanica">
|
||
<emphasis id="B951A922FF88FFAEFEF299DDFDF7FB26" box="[348,622,1196,1221]" italics="true" pageId="39" pageNumber="40">Paraacidaspis hunanica</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C250EB3FF88FFAEFD0799DCFC94FB26" authorityName="Shergold, Feist & Vizcaino" authorityYear="2000" box="[681,781,1196,1221]" class="Trilobita" family="Lichakephalidae" genus="Paraacidaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lichida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="species" species="ultima">
|
||
<emphasis id="B951A922FF88FFAEFD0799DCFC94FB26" box="[681,781,1196,1221]" italics="true" pageId="39" pageNumber="40">P. ultima</emphasis>
|
||
</taxonomicName>
|
||
have essentially identical pygidia and both are similar to those from the Goyder Formation and Öpik’s (1967)
|
||
<taxonomicName id="4C250EB3FF88FFAEFD4A99BEFC0BFB0B" authority="Basin" authorityName="Basin" box="[740,914,1231,1256]" class="Insecta" family="Morabidae" genus="Georgina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthoptera" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">Georgina Basin</taxonomicName>
|
||
material.
|
||
<taxonomicName id="4C250EB3FF88FFAEFBAF99BEFB3AFB0B" authorityName="Poletaeva" authorityYear="1960" box="[1025,1187,1231,1256]" class="Trilobita" family="Lichakephalidae" genus="Paraacidaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lichida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B951A922FF88FFAEFBAF99BEFB3AFB0B" box="[1025,1187,1231,1256]" italics="true" pageId="39" pageNumber="40">Paraacidaspis</emphasis>
|
||
</taxonomicName>
|
||
sp. described by Peng
|
||
<emphasis id="B951A922FF88FFAEFF399984FF57FAEE" box="[151,206,1268,1293]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
|
||
. (2004a) also has a similar pygidium, although it has a more coarsely granulose prosopon making it immediately distinguishable from the material reported herein. The Goyder Formation and
|
||
<taxonomicName id="4C250EB3FF88FFAEFB489866FA05FAD3" authority="Basin" authorityName="Basin" box="[1254,1436,1303,1328]" class="Insecta" family="Morabidae" genus="Georgina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthoptera" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">Georgina Basin</taxonomicName>
|
||
material differs from these previously described species in possessing the following features: a slightly longer (sag.) axis, narrower anterior pleural bands, and wider posterior pleural bands. These minor differences are likely of only interspecific significance, hence,
|
||
<taxonomicName id="4C250EB3FF88FFAEFDCD98F5FD36FA7E" authorityName="Walcott" authorityYear="1914" box="[611,687,1412,1437]" class="Trilobita" family="Saukiidae" genus="Saukia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Asaphida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B951A922FF88FFAEFDCD98F5FD36FA7E" box="[611,687,1412,1437]" italics="true" pageId="39" pageNumber="40">Saukia</emphasis>
|
||
</taxonomicName>
|
||
?
|
||
<emphasis id="B951A922FF88FFAEFD6C98F5FC86FA7E" box="[706,799,1412,1437]" italics="true" pageId="39" pageNumber="40">priscilla</emphasis>
|
||
Öpik, 1967 is questionably reassigned to
|
||
<taxonomicName id="4C250EB3FF88FFAEFB5D98F5FA0CFA7E" authorityName="Poletaeva" authorityYear="1960" box="[1267,1429,1412,1437]" class="Trilobita" family="Lichakephalidae" genus="Paraacidaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lichida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B951A922FF88FFAEFB5D98F5FA0CFA7E" box="[1267,1429,1412,1437]" italics="true" pageId="39" pageNumber="40">Paraacidaspis</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="8B9A7530FF88FFAEFF6998D6FCABF8CB" blockId="39.[151,1437,151,2013]" pageId="39" pageNumber="40">
|
||
Similar pygidia have been described from the Boomerangian to Idamean Spurs Formation in
|
||
<collectingCountry id="F33235A0FF88FFAEFB4398D6FAFCFA23" box="[1261,1381,1447,1472]" name="Antarctica" pageId="39" pageNumber="40">Antarctica</collectingCountry>
|
||
. The pygidium assigned to
|
||
<emphasis id="B951A922FF88FFAEFE0D98BDFDA6FA06" box="[419,575,1484,1509]" italics="true" pageId="39" pageNumber="40">Nganasanella</emphasis>
|
||
? sp. by Cooper
|
||
<emphasis id="B951A922FF88FFAEFCBC98BCFCD3FA06" box="[786,842,1484,1509]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
|
||
. (1996, fig. 5U) is small and incomplete, but is comparable to the Goyder Formation material. Only minor differences are apparent, including a shorter (sag.) axis and a relatively wider anterior pleural band.
|
||
<taxonomicName id="4C250EB3FF88FFAEFD2A9B64FD4AF9CF" authorityName="Walcott" authorityYear="1911" box="[644,723,1557,1580]" class="Trilobita" family="Crepicephalidae" genus="Coosia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ptychopariida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B951A922FF88FFAEFD2A9B64FD4AF9CF" box="[644,723,1557,1580]" italics="true" pageId="39" pageNumber="40">Coosia</emphasis>
|
||
</taxonomicName>
|
||
? sp. 2 illustrated by Jago & Cooper (2005, fig. 6S) has a similar outline to the Goyder Formation species, but possesses more pleural and interpleural furrows than the Goyder Formation pygidia. The pygidium of
|
||
<taxonomicName id="4C250EB3FF88FFAEFDEE9B2CFD16F997" authorityName="Walcott" authorityYear="1911" box="[576,655,1629,1652]" class="Trilobita" family="Crepicephalidae" genus="Coosia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ptychopariida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B951A922FF88FFAEFDEE9B2CFD16F997" box="[576,655,1629,1652]" italics="true" pageId="39" pageNumber="40">Coosia</emphasis>
|
||
</taxonomicName>
|
||
? sp. 1 illustrated by Jago & Cooper (2005, fig. 6R) differs from the Goyder Formation specimens in having a more subcircular outline, narrower (tr.) axis, wider (exsag.) anterior pleural band, and a longer (sag.) terminal area. Material described by Bentley
|
||
<emphasis id="B951A922FF88FFAEFB859BD4FBC6F95E" box="[1067,1119,1700,1725]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
|
||
. (2009, figs 7K, L, 8U) as
|
||
<taxonomicName id="4C250EB3FF88FFAEFF399BB9FF7FF93C" authorityName="Walcott" authorityYear="1911" box="[151,230,1736,1759]" class="Trilobita" family="Crepicephalidae" genus="Coosia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ptychopariida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B951A922FF88FFAEFF399BB9FF7FF93C" box="[151,230,1736,1759]" italics="true" pageId="39" pageNumber="40">Coosia</emphasis>
|
||
</taxonomicName>
|
||
? sp. also differs in having wider anterior pleural bands and a longer (sag.) terminal area. Given these relatively minor differences, it is possible that the Antarctic taxon—following the synonymy of Bentley
|
||
<emphasis id="B951A922FF88FFAEFACE9B9CFA05F8E6" box="[1376,1436,1772,1797]" italics="true" pageId="39" pageNumber="40">et al.</emphasis>
|
||
(2009, p. 183)—represents a new species of
|
||
<taxonomicName id="4C250EB3FF88FFAEFD279A7EFCB2F8CB" authorityName="Poletaeva" authorityYear="1960" box="[649,811,1807,1832]" class="Trilobita" family="Lichakephalidae" genus="Paraacidaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lichida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B951A922FF88FFAEFD279A7EFCB2F8CB" box="[649,811,1807,1832]" italics="true" pageId="39" pageNumber="40">Paraacidaspis</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="8B9A7530FF88FFAEFF699A45FA04F876" blockId="39.[151,1437,151,2013]" pageId="39" pageNumber="40">
|
||
Another similar pygidium, identified as?
|
||
<taxonomicName id="4C250EB3FF88FFAEFD3A9A45FCAFF8AE" authorityName="Poletaeva" authorityYear="1960" box="[660,822,1844,1869]" class="Trilobita" family="Lichakephalidae" genus="Paraacidaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lichida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B951A922FF88FFAEFD3A9A45FCAFF8AE" box="[660,822,1844,1869]" italics="true" pageId="39" pageNumber="40">Paraacidaspis</emphasis>
|
||
</taxonomicName>
|
||
sp., was described from the Guzhangian of
|
||
<collectingCountry id="F33235A0FF88FFAEFA8E9A45FAE0F8AE" box="[1312,1401,1844,1869]" name="Sweden" pageId="39" pageNumber="40">Sweden</collectingCountry>
|
||
by Żylińska
|
||
<emphasis id="B951A922FF88FFAEFEAC9A28FEADF893" box="[258,308,1879,1904]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
|
||
. (2015). This specimen differs from previously described taxa, including
|
||
<taxonomicName id="4C250EB3FF88FFAEFB299A26FAB0F893" authorityName="Poletaeva" authorityYear="1960" box="[1159,1321,1879,1904]" class="Trilobita" family="Lichakephalidae" genus="Paraacidaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lichida" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B951A922FF88FFAEFB299A26FAB0F893" box="[1159,1321,1879,1904]" italics="true" pageId="39" pageNumber="40">Paraacidaspis</emphasis>
|
||
</taxonomicName>
|
||
?
|
||
<emphasis id="B951A922FF88FFAEFA909A26FA02F893" box="[1342,1435,1879,1904]" italics="true" pageId="39" pageNumber="40">priscilla</emphasis>
|
||
(Öpik, 1967), in possessing a subrectangular outline, only four pleural furrows, and a narrower (tr.) postaxial ridge.
|
||
</paragraph>
|
||
<paragraph id="8B9A7530FF88FFAEFF699AD1FB80F85A" blockId="39.[151,1437,151,2013]" box="[199,1049,1952,1977]" pageId="39" pageNumber="40">
|
||
<materialsCitation id="3B4D7F6DFF88FFAEFF699AD1FB80F85A" ID-GBIF-Occurrence="1835975963" box="[199,1049,1952,1977]" country="American Samoa" elevation="84" location="AS" pageId="39" pageNumber="40" specimenCount="1">
|
||
<emphasis id="B951A922FF88FFAEFF699AD1FEC0F85A" bold="true" box="[199,345,1952,1977]" pageId="39" pageNumber="40">Occurrence.</emphasis>
|
||
GOY section horizons 73.2 and
|
||
<elevation id="00089203FF88FFAEFD679AD1FC8EF85B" box="[713,791,1952,1976]" metricMagnitude="1" metricUnit="m" metricValue="8.39" pageId="39" pageNumber="40" unit="m" value="83.9">
|
||
<quantity id="4CDDD8D5FF88FFAEFD679AD1FC8EF85B" box="[713,791,1952,1976]" metricMagnitude="1" metricUnit="m" metricValue="8.39" pageId="39" pageNumber="40" unit="m" value="83.9">83.9 m</quantity>
|
||
</elevation>
|
||
(
|
||
<figureCitation id="131E69B5FF88FFAEFC889AD1FCF0F85B" box="[806,873,1952,1977]" captionStart="FIGURE 3" captionStartId="9.[151,250,1832,1854]" captionTargetBox="[189,1384,215,1785]" captionTargetId="figure@9.[174,1416,195,1820]" captionTargetPageId="9" captionText="FIGURE 3. Generalised lithostratigraphy and taxon ranges through the Goyder Formation at the GOY section. Sampled horizons are indicated on the right side of the section, with sample numbers representing tape meterage along the section line (see Fig.2). Measurements on the left side of the section are in meters (true thickness) from the base of the Goyder Formation. SF = Shannon Formation, PSS = Pacoota Sandstone. Solid black circles represent the occurrences of taxa present in the GOY section. Hollow circles represent the approximate stratigraphic occurrences of taxa found at nearby spot localities. Ranges of taxa found only atspot localities approximate, and has been inferred using lithological, faunal and geographical information." httpUri="https://zenodo.org/record/1202729/files/figure.png" pageId="39" pageNumber="40">Fig. 3</figureCitation>
|
||
) and at
|
||
<collectingCountry id="F33235A0FF88FFAEFC6A9AD1FC73F85A" box="[964,1002,1952,1977]" name="American Samoa" pageId="39" pageNumber="40">AS</collectingCountry>
|
||
168.
|
||
</materialsCitation>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C33F26BBFF88FFA1FF699AB5FEE4FF36" lastPageId="40" lastPageNumber="41" pageId="39" pageNumber="40" type="distribution">
|
||
<paragraph id="8B9A7530FF88FFA1FF699AB5FEE4FF36" blockId="39.[151,1437,151,2013]" lastBlockId="40.[151,1436,151,213]" lastPageId="40" lastPageNumber="41" pageId="39" pageNumber="40">
|
||
<emphasis id="B951A922FF88FFAEFF699AB5FEF9F83E" bold="true" box="[199,352,1988,2013]" pageId="39" pageNumber="40">Distribution.</emphasis>
|
||
Goyder Formation, Amadeus Basin,
|
||
<collectingRegion id="49E1BBD2FF88FFAEFCAA9AB5FC4CF83E" box="[772,981,1988,2013]" country="Australia" name="Northern Territory" pageId="39" pageNumber="40">Northern Territory</collectingRegion>
|
||
. O’Hara Shale and
|
||
<taxonomicName id="4C250EB3FF88FFA1FB1E9AB5FEC9FF53" authority="Limestone, Georgina Basin" authorityName="Limestone, Georgina Basin" class="Insecta" family="Morabidae" genus="Georgina" higherTaxonomySource="GBIF" kingdom="Animalia" lastPageId="40" lastPageNumber="41" order="Orthoptera" pageId="39" pageNumber="40" phylum="Arthropoda" rank="genus">Georgina Limestone, Georgina Basin</taxonomicName>
|
||
,
|
||
<collectingRegion id="49E1BBD2FF87FFA1FECB9DE6FDA4FF53" box="[357,573,151,176]" country="Australia" name="Northern Territory" pageId="40" pageNumber="41">Northern Territory</collectingRegion>
|
||
and
|
||
<collectingRegion id="49E1BBD2FF87FFA1FD289DE6FC97FF53" box="[646,782,151,176]" country="Australia" name="Queensland" pageId="40" pageNumber="41">Queensland</collectingRegion>
|
||
. All occurrences are Cambrian Series 3, Guzhangian (Mindyallan) in age.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |