249 lines
28 KiB
XML
249 lines
28 KiB
XML
<document id="08F42FB4982EC27EEB63128C5FB6272E" ID-DOI="10.11646/zootaxa.4804.1.1" ID-ISSN="1175-5326" ID-Zenodo-Dep="3927094" ID-ZooBank="8C1C1703-9BBC-4B33-8045-78BDD9738F51" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1593672611012" checkinUser="plazi" docAuthor="Westrop, Madison Armstrong Stephen R. & Eoff, Jennifer D." docDate="2020" docId="03F76D37FFBCFFDC6BD2E121FE149065" docLanguage="en" docName="zootaxa.4804.1.1.pdf" docOrigin="Zootaxa 4804 (1)" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Blountia newfoundlandensis Westrop & Eoff 2020, n. sp." docType="treatment" docVersion="4" lastPageNumber="21" masterDocId="FFCE154FFFAFFFC86B45E438FF8E9206" masterDocTitle="Systematics of a survivor: the Cambrian kingstoniid trilobite Blountia Walcott, 1916 across the Marjuman-Steptoean (Guzhangian-Paibian) extinction interval in Laurentian North America" masterLastPageNumber="79" masterPageNumber="1" pageNumber="20" updateTime="1698776919363" updateUser="plazi">
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<mods:titleInfo id="2AC1A4B751910733433EC7DD03DA121A">
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<mods:title id="3B632D30C7E7E67DEF9A33342EA26652">Systematics of a survivor: the Cambrian kingstoniid trilobite Blountia Walcott, 1916 across the Marjuman-Steptoean (Guzhangian-Paibian) extinction interval in Laurentian North America</mods:title>
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<mods:namePart id="DAE0A9B45A41830BF226E3ABE8279351">Westrop, Madison Armstrong Stephen R.</mods:namePart>
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<mods:roleTerm id="4D96BA3CF87ADB8B10FC4DD1635D38CB">Author</mods:roleTerm>
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<mods:namePart id="44275A0A1CFC4F95FA14F26C3D9D96D4">Eoff, Jennifer D.</mods:namePart>
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<mods:typeOfResource id="9E66187CBE479CAC1EC6BCA9A486887F">text</mods:typeOfResource>
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<mods:title id="5703337C311375EB365CCCD71C427633">Zootaxa</mods:title>
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</mods:titleInfo>
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<mods:part id="EF30B598F7FD8C532BE5F06F3BADC740">
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<mods:date id="330E4CB31F74CDF42CED8C864E435554">2020</mods:date>
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<mods:number id="9F682A6D7EC03B4981BAC974E148CBB2">2020-06-30</mods:number>
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<mods:detail id="B041099D64B2AE6D8143ADBE1AE18426" type="volume">
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<mods:number id="E170305B180EFEEB3165EDDF1835DEF1">4804</mods:number>
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<mods:classification id="5F8C4BC041802EE7933691C3144DA970">journal article</mods:classification>
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<mods:identifier id="2560A017A6BD1F4FE804FF2442AB760B" type="DOI">10.11646/zootaxa.4804.1.1</mods:identifier>
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<mods:identifier id="16614BCD829991FCA6484300C3ABCE3C" type="ISSN">1175-5326</mods:identifier>
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<treatment id="03F76D37FFBCFFDC6BD2E121FE149065" ID-DOI="http://doi.org/10.5281/zenodo.4333489" ID-Zenodo-Dep="4333489" LSID="urn:lsid:plazi:treatment:03F76D37FFBCFFDC6BD2E121FE149065" httpUri="http://treatment.plazi.org/id/03F76D37FFBCFFDC6BD2E121FE149065" lastPageId="20" lastPageNumber="21" pageId="19" pageNumber="20">
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<subSubSection id="C3448FAAFFBCFFDB6BD2E121FDB39735" box="[151,573,1305,1332]" pageId="19" pageNumber="20" type="nomenclature">
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<paragraph id="8BE1DC21FFBCFFDB6BD2E121FDB39735" blockId="19.[151,573,1305,1367]" box="[151,573,1305,1332]" pageId="19" pageNumber="20">
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<heading id="D0A96B4DFFBCFFDB6BD2E121FDB39735" bold="true" box="[151,573,1305,1332]" fontSize="11" level="1" pageId="19" pageNumber="20" reason="1">
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<emphasis id="B92A0033FFBCFFDB6BD2E121FDB39735" bold="true" box="[151,573,1305,1332]" pageId="19" pageNumber="20">
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<taxonomicName id="4C5EA7A2FFBCFFDB6BD2E121FE7D9732" authority="Westrop & Eoff, 2020" authorityName="Westrop & Eoff" authorityYear="2020" box="[151,499,1305,1332]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="19" pageNumber="20" phylum="Arthropoda" rank="species" species="newfoundlandensis" status="sp. nov.">
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<emphasis id="B92A0033FFBCFFDB6BD2E121FE7D9732" bold="true" box="[151,499,1305,1332]" italics="true" pageId="19" pageNumber="20">Blountia newfoundlandensis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A219BD48FFBCFFDB6ABEE121FDB39735" box="[507,573,1305,1331]" pageId="19" pageNumber="20" rank="species">n. sp.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C3448FAAFFBCFFDB6BD2E105FD839751" box="[151,525,1340,1367]" pageId="19" pageNumber="20" type="description">
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<paragraph id="8BE1DC21FFBCFFDB6BD2E105FD839751" blockId="19.[151,573,1305,1367]" box="[151,525,1340,1367]" pageId="19" pageNumber="20">
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<figureCitation id="1365C0A4FFBCFFDB6BD2E105FF7D9751" box="[151,243,1341,1367]" captionStart="PLATE 11" captionStartId="46.[151,234,1839,1864]" captionText="PLATE 11. Blountia gaspensis Rasetti, 1946, lower Grosses-Roches Formation, Grosse-Roches, Matane County, Gaspé Peninsula, eastern Quebec, boulder G-28. 1–3. Cranidium, holotype, GSC 140491 (LU 1004a), lateral, dorsal and anterior views, x10 (illustrated by Rasetti 1946, pl. 67, figs 7, 8). 4. Pygidium, paratype, GSC 140492 (LU 1004e), dorsal view, x6.5 (previously unillustrated). Blountia newfoundlandensis n. sp., Downes Point Member, Shallow Bay Formation, north shore of the Cow Head Peninsula, western Newfoundland, boulder CH 48. 5. Cranidium, paratype, GSC 140493, dorsal view, x19. 6, 7. Cranidium, paratype, GSC 140494, lateral and dorsal views, x20. 8–10. Cranidium, paratype, GSC 140495, dorsal, lateral and anterior views, x14." pageId="19" pageNumber="20">Plate 11</figureCitation>
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, figs 5–10,
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<figureCitation id="1365C0A4FFBCFFDB6A33E105FE519751" box="[374,479,1341,1367]" captionStart="PLATE 20" captionStartId="64.[151,234,1839,1864]" captionText="PLATE 20. Blountia newfoundlandensis n. sp., Downes Point Member, Shallow Bay Formation, north shore of the Cow Head Peninsula, western Newfoundland, boulder CH 48. 1, 2. Cranidium, holotype, GSC 140501, dorsal and lateral views, x12. 3. Cranidium, paratype, GSC 140502, dorsal view, x15. 4. Cranidium, paratype, GSC 140503, dorsal view, x15. 5. Cranidium, paratype, GSC 140504, dorsal view, x12. 6–8. Cranidium, paratype, GSC 140505, lateral, anterior and dorsal views, x18. 9–11. Cranidium, paratype, GSC 140506, lateral, anterior and dorsal views, x20." pageId="19" pageNumber="20">Plates 20</figureCitation>
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,
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<figureCitation id="1365C0A4FFBCFFDB6AAFE105FD879751" box="[490,521,1341,1367]" captionStart="PLATE 21" captionStartId="66.[151,234,1868,1893]" captionText="PLATE 21. Blountia newfoundlandensis n. sp., Downes Point Member, Shallow Bay Formation, north shore of the Cow Head Peninsula, western Newfoundland, boulder CH 48. 1–3. Pygidium, paratype, GSC 140507, dorsal, lateral, and posterior views, x17. 4–6. Pygidium, paratype, GSC 140508, posterior, lateral, and dorsal views, x14. 7, 8. Pygidium, paratype, GSC 140509, dorsal and posterior views, x17. 9, 10. Pygidium, paratype, GSC 140510, dorsal and posterior views, x11.5. 11. Pygidium, paratype, GSC 140511, dorsal view, x14." pageId="19" pageNumber="20">21</figureCitation>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="C3448FAAFFBCFFDB6BD2E1BCFCC7949D" pageId="19" pageNumber="20" type="diagnosis">
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<paragraph id="8BE1DC21FFBCFFDB6BD2E1BCFD299471" blockId="19.[151,1437,1412,2015]" pageId="19" pageNumber="20">
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<emphasis id="B92A0033FFBCFFDB6BD2E1BCFE9C9799" bold="true" box="[151,274,1412,1439]" pageId="19" pageNumber="20">Diagnosis.</emphasis>
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Frontal area slightly less than one-quarter (23%; 20–25) of cranidial length (lowest values in smallest individuals; e.g., Pl. 20, figs 9–11), divided into steeply sloping preglabellar field and longer (63% [58–71] of frontal area length), flat anterior border by well-incised border furrow. Pygidium semielliptical in outline, length 64% (56–58; lowest values in smallest specimen, Pl. 21, fig. 1) of maximum width. Pleural field raised above border. Border expands conspicuously towards axis, accounting for 20% (19–23) of pygidial length (sag.); border furrow weakens near axis. Axis with seven axial rings in front of terminal piece of two segments. External surface of exoskeleton smooth; internal mould lacks pitting.
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</paragraph>
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<paragraph id="8BE1DC21FFBCFFDB6B82E2B9FCC7949D" blockId="19.[151,1437,1412,2015]" box="[199,841,1665,1691]" pageId="19" pageNumber="20">
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<emphasis id="B92A0033FFBCFFDB6B82E2B9FE83949D" bold="true" box="[199,269,1665,1691]" pageId="19" pageNumber="20">Name</emphasis>
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. For the
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<typeStatus id="54E56283FFBCFFDB6A37E2B9FE2C949D" box="[370,418,1665,1691]" pageId="19" pageNumber="20">type</typeStatus>
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area of the species in Newfoundland.
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</paragraph>
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</subSubSection>
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<subSubSection id="C3448FAAFFBCFFDB6B82E29CFD5C9575" pageId="19" pageNumber="20" type="materials_examined">
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<paragraph id="8BE1DC21FFBCFFDB6B82E29CFBED952D" blockId="19.[151,1437,1412,2015]" pageId="19" pageNumber="20">
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<emphasis id="B92A0033FFBCFFDB6B82E29CFEB894B9" bold="true" box="[199,310,1700,1727]" pageId="19" pageNumber="20">Material.</emphasis>
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<materialsCitation id="3B36D67CFFBCFFDB6A78E29DFBED952D" collectingDate="01-05-14" collectingDateMax="95-04-14" collectingDateMin="01-05-14" collectionCode="GSC" county="western Newfoundland. Twenty-seven" location="Downes Point Member" municipality="Cow Head Peninsula" pageId="19" pageNumber="20" specimenCode="GSC 140511" specimenCount="3" typeStatus="holotype">
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<typeStatus id="54E56283FFBCFFDB6A78E29DFE2B94B9" box="[317,421,1701,1727]" pageId="19" pageNumber="20" type="holotype">Holotype</typeStatus>
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cranidium (
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<collectionCode id="ED4F44E4FFBCFFDB6968E29DFDEB94B9" box="[557,613,1701,1727]" country="Canada" httpUri="http://grbio.org/cool/52gs-z31g" name="Geological Survey of Canada" pageId="19" pageNumber="20">GSC</collectionCode>
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<date id="FFE0FAE1FFBCFFDB6929E29CFD4D94B9" box="[620,707,1700,1727]" pageId="19" pageNumber="20" value="01-05-14">
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<collectingDate id="EFA40309FFBCFFDB6929E29CFD4D94B9" box="[620,707,1700,1727]" pageId="19" pageNumber="20" value="01-05-14">140501</collectingDate>
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</date>
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, Pl. 20, figs 1–3), eight
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<typeStatus id="54E56283FFBCFFDB6895E29DFBBE94B9" box="[976,1072,1701,1727]" pageId="19" pageNumber="20" type="paratype">paratype</typeStatus>
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cranidia (
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<collectionCode id="ED4F44E4FFBCFFDB6FE5E29DFB5694B9" box="[1184,1240,1701,1727]" country="Canada" httpUri="http://grbio.org/cool/52gs-z31g" name="Geological Survey of Canada" pageId="19" pageNumber="20">GSC</collectionCode>
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<date id="FFE0FAE1FFBCFFDB6F9AE29DFABD94B9" box="[1247,1331,1701,1727]" pageId="19" pageNumber="20" value="93-04-14">
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<collectingDate id="EFA40309FFBCFFDB6F9AE29DFABD94B9" box="[1247,1331,1701,1727]" pageId="19" pageNumber="20" value="93-04-14">140493</collectingDate>
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</date>
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–
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<date id="FFE0FAE1FFBCFFDB6E07E29CFA1694B9" box="[1346,1432,1700,1727]" pageId="19" pageNumber="20" value="95-04-14">
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<collectingDate id="EFA40309FFBCFFDB6E07E29CFA1694B9" box="[1346,1432,1700,1727]" pageId="19" pageNumber="20" value="95-04-14">140495</collectingDate>
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</date>
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, Pl. 11, figs 5–10;
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<collectionCode id="ED4F44E4FFBCFFDB6A1BE2F1FE1A94E5" box="[350,404,1737,1763]" country="Canada" httpUri="http://grbio.org/cool/52gs-z31g" name="Geological Survey of Canada" pageId="19" pageNumber="20">GSC</collectionCode>
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<date id="FFE0FAE1FFBCFFDB6AD9E2F0FE7F94E5" box="[412,497,1736,1763]" pageId="19" pageNumber="20" value="02-05-14">
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<collectingDate id="EFA40309FFBCFFDB6AD9E2F0FE7F94E5" box="[412,497,1736,1763]" pageId="19" pageNumber="20" value="02-05-14">140502</collectingDate>
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</date>
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–
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<date id="FFE0FAE1FFBCFFDB6945E2F0FDDB94E5" box="[512,597,1736,1763]" pageId="19" pageNumber="20" value="06-05-14">
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<collectingDate id="EFA40309FFBCFFDB6945E2F0FDDB94E5" box="[512,597,1736,1763]" pageId="19" pageNumber="20" value="06-05-14">140506</collectingDate>
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</date>
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, Pl. 20, figs 3–11), and five
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<typeStatus id="54E56283FFBCFFDB68D7E2F1FC7C94E5" box="[914,1010,1737,1763]" pageId="19" pageNumber="20" type="paratype">paratype</typeStatus>
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pygidia (
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<collectionCode id="ED4F44E4FFBCFFDB6F19E2F1FB1A94E5" box="[1116,1172,1737,1763]" country="Canada" httpUri="http://grbio.org/cool/52gs-z31g" name="Geological Survey of Canada" pageId="19" pageNumber="20">GSC</collectionCode>
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<date id="FFE0FAE1FFBCFFDB6FDEE2F0FB6094E5" box="[1179,1262,1736,1763]" pageId="19" pageNumber="20" value="07-05-14">
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<collectingDate id="EFA40309FFBCFFDB6FDEE2F0FB6094E5" box="[1179,1262,1736,1763]" pageId="19" pageNumber="20" value="07-05-14">140507</collectingDate>
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</date>
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–
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<specimenCode id="DBF8745AFFBCFFDB6E40E2F1FA1694E5" box="[1285,1432,1736,1763]" collectionCode="GSC" country="Canada" httpUri="http://grbio.org/cool/52gs-z31g" name="Geological Survey of Canada" pageId="19" pageNumber="20">
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GSC
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<date id="FFE0FAE1FFBCFFDB6E07E2F0FA1694E5" box="[1346,1432,1736,1763]" pageId="19" pageNumber="20" value="11-05-14">140511</date>
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</specimenCode>
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, Pl. 21, figs 1–11) from the
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<location id="8E818AFAFFBCFFDB6A8BE2D5FD599501" LSID="urn:lsid:plazi:treatment:03F76D37FFBCFFDC6BD2E121FE149065:8E818AFAFFBCFFDB6A8BE2D5FD599501" box="[462,727,1773,1799]" county="western Newfoundland. Twenty-seven" municipality="Cow Head Peninsula" name="Downes Point Member" pageId="19" pageNumber="20">Downes Point Member</location>
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,
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<location id="8E818AFAFFBCFFDB69A6E2D5FC7B9501" LSID="urn:lsid:plazi:treatment:03F76D37FFBCFFDC6BD2E121FE149065:8E818AFAFFBCFFDB69A6E2D5FC7B9501" box="[739,1013,1773,1799]" county="western Newfoundland. Twenty-seven" municipality="Cow Head Peninsula" name="Shallow Bay Formation" pageId="19" pageNumber="20">
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<location id="8E818AFAFFBCFFDB69A6E2D5FCFA9501" LSID="urn:lsid:plazi:treatment:03F76D37FFBCFFDC6BD2E121FE149065:8E818AFAFFBCFFDB69A6E2D5FCFA9501" box="[739,884,1773,1799]" county="western Newfoundland. Twenty-seven" municipality="Cow Head Peninsula" name="Shallow Bay" pageId="19" pageNumber="20">Shallow Bay</location>
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Formation
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</location>
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,
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<collectingMunicipality id="6B85465BFFBCFFDB6F44E2D5FB7C9501" box="[1025,1266,1773,1799]" pageId="19" pageNumber="20">Cow Head Peninsula</collectingMunicipality>
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,
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<collectingCounty id="6280A4ADFFBCFFDB6FBBE2D5FE3D952D" pageId="19" pageNumber="20">western Newfoundland. Twenty-seven</collectingCounty>
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cranidia and thirty-one pygidia were also available for study.
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</materialsCitation>
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</paragraph>
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<paragraph id="8BE1DC21FFBCFFDB6B82E30CFD5C9575" blockId="19.[151,1437,1412,2015]" pageId="19" pageNumber="20">
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<emphasis id="B92A0033FFBCFFDB6B82E30CFED49549" bold="true" box="[199,346,1844,1871]" pageId="19" pageNumber="20">Occurrence.</emphasis>
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<taxonomicName id="4C5EA7A2FFBCFFDB6A24E30DFBC29549" authority="Zone, Downes Point Member, Shallow Bay Formation" authorityName="Zone, Downes Point Member, Shallow Bay Formation" box="[353,1100,1845,1871]" class="Trilobita" family="Aphelaspididae" genus="Aphelaspis" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Asaphida" pageId="19" pageNumber="20" phylum="Arthropoda" rank="genus">
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<emphasis id="B92A0033FFBCFFDB6A24E30DFE529549" box="[353,476,1845,1871]" italics="true" pageId="19" pageNumber="20">Aphelaspis</emphasis>
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Zone, Downes Point Member, Shallow Bay Formation
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</taxonomicName>
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, north shore of the Cow Head Peninsula, western Newfoundland, boulder
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<collectingCountry id="F3499CB1FFBCFFDB69C4E361FD269575" box="[641,680,1881,1907]" name="Switzerland" pageId="19" pageNumber="20">CH</collectingCountry>
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48.
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</paragraph>
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</subSubSection>
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||
<subSubSection id="C3448FAAFFBCFFDC6B82E344FE149065" lastPageId="20" lastPageNumber="21" pageId="19" pageNumber="20" type="discussion">
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<paragraph id="8BE1DC21FFBCFFDC6B82E344FE019345" blockId="19.[151,1437,1412,2015]" lastBlockId="20.[151,1437,153,611]" lastPageId="20" lastPageNumber="21" pageId="19" pageNumber="20">
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<emphasis id="B92A0033FFBCFFDB6B82E344FEC29591" bold="true" box="[199,332,1916,1943]" pageId="19" pageNumber="20">Discussion.</emphasis>
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<taxonomicName id="4C5EA7A2FFBCFFDB6A16E345FD1C9591" authorityName="Westrop & Eoff" authorityYear="2020" box="[339,658,1917,1943]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="19" pageNumber="20" phylum="Arthropoda" rank="species" species="newfoundlandensis">
|
||
<emphasis id="B92A0033FFBCFFDB6A16E345FD1C9591" box="[339,658,1917,1943]" italics="true" pageId="19" pageNumber="20">Blountia newfoundlandensis</emphasis>
|
||
</taxonomicName>
|
||
is sufficiently similar to
|
||
<taxonomicName id="4C5EA7A2FFBCFFDB68EFE346FBAC9591" authorityName="Westrop & Eoff" authorityYear="2020" box="[938,1058,1917,1943]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="19" pageNumber="20" phylum="Arthropoda" rank="species" species="angelae">
|
||
<emphasis id="B92A0033FFBCFFDB68EFE346FBAC9591" box="[938,1058,1917,1943]" italics="true" pageId="19" pageNumber="20">B. angelae</emphasis>
|
||
</taxonomicName>
|
||
that a full description is unnecessary. Cranidia of the latter (Pl. 15, figs 1–5) differ from those of
|
||
<taxonomicName id="4C5EA7A2FFBCFFDB6833E39AFBE395BD" authorityName="Westrop & Eoff" authorityYear="2020" box="[886,1133,1953,1979]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="19" pageNumber="20" phylum="Arthropoda" rank="species" species="newfoundlandensis">
|
||
<emphasis id="B92A0033FFBCFFDB6833E39AFC0995BD" box="[886,903,1954,1979]" italics="true" pageId="19" pageNumber="20">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFBCFFDB68D3E399FBE395BD" box="[918,1133,1953,1979]" italics="true" pageId="19" pageNumber="20">newfoundlandensis</emphasis>
|
||
</taxonomicName>
|
||
by having a longer frontal area (equal to 30% versus slightly less than 25% in
|
||
<taxonomicName id="4C5EA7A2FFBCFFDB6844E3FEFC7595D9" authorityName="Westrop & Eoff" authorityYear="2020" box="[769,1019,1989,2015]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="19" pageNumber="20" phylum="Arthropoda" rank="species" species="newfoundlandensis">
|
||
<emphasis id="B92A0033FFBCFFDB6844E3FEFC9C95D9" box="[769,786,1990,2015]" italics="true" pageId="19" pageNumber="20">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFBCFFDB6861E3FDFC7595D9" box="[804,1019,1989,2015]" italics="true" pageId="19" pageNumber="20">newfoundlandensis</emphasis>
|
||
</taxonomicName>
|
||
), a more rounded anterior cranidial margin, and wider palpebral areas of the fixigenae. The preglabellar field of
|
||
<taxonomicName id="4C5EA7A2FFBBFFDC68BCE4A2FB7E92B5" authorityName="Westrop & Eoff" authorityYear="2020" box="[1017,1264,153,179]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="newfoundlandensis">
|
||
<emphasis id="B92A0033FFBBFFDC68BCE4A2FB8492B5" box="[1017,1034,154,179]" italics="true" pageId="20" pageNumber="21">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFBBFFDC6F5CE4A1FB7E92B5" box="[1049,1264,153,179]" italics="true" pageId="20" pageNumber="21">newfoundlandensis</emphasis>
|
||
</taxonomicName>
|
||
dips down at a steeper slope than that of
|
||
<taxonomicName id="4C5EA7A2FFBBFFDC6AF7E486FDA492D1" authorityName="Westrop & Eoff" authorityYear="2020" box="[434,554,189,215]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="angelae">
|
||
<emphasis id="B92A0033FFBBFFDC6AF7E486FE4D92D1" box="[434,451,190,215]" italics="true" pageId="20" pageNumber="21">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFBBFFDC6A94E485FDA492D1" box="[465,554,189,215]" italics="true" pageId="20" pageNumber="21">angelae</emphasis>
|
||
</taxonomicName>
|
||
, and the anterior border is flatter. The pygidium of
|
||
<taxonomicName id="4C5EA7A2FFBBFFDC6F27E486FB5792D1" authorityName="Westrop & Eoff" authorityYear="2020" box="[1122,1241,189,215]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="angelae">
|
||
<emphasis id="B92A0033FFBBFFDC6F27E486FBFD92D1" box="[1122,1139,190,215]" italics="true" pageId="20" pageNumber="21">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFBBFFDC6FC5E485FB5792D1" box="[1152,1241,189,215]" italics="true" pageId="20" pageNumber="21">angelae</emphasis>
|
||
</taxonomicName>
|
||
differs by having border that maintains a nearly even width along the lateral and posterior margins (e.g., Pl. 15, fig. 6), in contrast to the conspicuous adaxial expansion in
|
||
<taxonomicName id="4C5EA7A2FFBBFFDC6901E53EFCB59319" authorityName="Westrop & Eoff" authorityYear="2020" box="[580,827,261,287]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="newfoundlandensis">
|
||
<emphasis id="B92A0033FFBBFFDC6901E53EFDDB9319" box="[580,597,262,287]" italics="true" pageId="20" pageNumber="21">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFBBFFDC6921E53DFCB59319" box="[612,827,261,287]" italics="true" pageId="20" pageNumber="21">newfoundlandensis</emphasis>
|
||
</taxonomicName>
|
||
(e.g., Pl. 21, figs 1, 9), and by the presence of pitting on the internal mould.
|
||
</paragraph>
|
||
<paragraph id="8BE1DC21FFBBFFDC6B82E575FE149065" blockId="20.[151,1437,153,611]" pageId="20" pageNumber="21">
|
||
Comparisons with
|
||
<taxonomicName id="4C5EA7A2FFBBFFDC6AD8E576FDB09361" authorityName="Resser" authorityYear="1938" box="[413,574,333,359]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="bristolensis">
|
||
<emphasis id="B92A0033FFBBFFDC6AD8E576FE209361" box="[413,430,334,359]" italics="true" pageId="20" pageNumber="21">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFBBFFDC6AF8E575FDB09361" box="[445,574,333,359]" italics="true" pageId="20" pageNumber="21">bristolensis</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C5EA7A2FFBBFFDC690BE576FD749361" authorityName="Duncan, in Lochman & Duncan" authorityYear="1944" box="[590,762,333,359]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="montanensis">
|
||
<emphasis id="B92A0033FFBBFFDC690BE576FDD19361" box="[590,607,334,359]" italics="true" pageId="20" pageNumber="21">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFBBFFDC692BE576FD749361" box="[622,762,334,359]" italics="true" pageId="20" pageNumber="21">montanensis</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C5EA7A2FFBBFFDC684CE576FC4F9361" authorityName="Westrop & Eoff" authorityYear="2020" box="[777,961,333,359]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="tennesseensis">
|
||
<emphasis id="B92A0033FFBBFFDC684CE576FC949361" box="[777,794,334,359]" italics="true" pageId="20" pageNumber="21">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFBBFFDC686FE576FC4F9361" box="[810,961,334,359]" italics="true" pageId="20" pageNumber="21">tennesseensis</emphasis>
|
||
</taxonomicName>
|
||
, and
|
||
<taxonomicName id="4C5EA7A2FFBBFFDC6F45E576FB659361" authorityName="Westrop & Eoff" authorityYear="2020" box="[1024,1259,333,359]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="morgancreekensis">
|
||
<emphasis id="B92A0033FFBBFFDC6F45E576FB9F9361" box="[1024,1041,334,359]" italics="true" pageId="20" pageNumber="21">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFBBFFDC6F64E575FB659361" box="[1057,1259,333,359]" italics="true" pageId="20" pageNumber="21">morgancreekensis</emphasis>
|
||
</taxonomicName>
|
||
were presented earlier in the text. The
|
||
<typeStatus id="54E56283FFBBFFDC6ADDE549FE46938D" box="[408,456,369,395]" pageId="20" pageNumber="21">type</typeStatus>
|
||
species,
|
||
<taxonomicName id="4C5EA7A2FFBBFFDC696AE54AFD2D938D" authorityName="Walcott" authorityYear="1916" box="[559,675,369,395]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="mimula">
|
||
<emphasis id="B92A0033FFBBFFDC696AE54AFDCE938D" box="[559,576,370,395]" italics="true" pageId="20" pageNumber="21">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFBBFFDC690AE549FD2D938D" box="[591,675,369,395]" italics="true" pageId="20" pageNumber="21">mimula</emphasis>
|
||
</taxonomicName>
|
||
(Pl. 1) has a pygidium in which the border furrow is nearly effaced and the border is barely differentiated from the pleural field. The palpebral lobes are farther forward in
|
||
<taxonomicName id="4C5EA7A2FFBBFFDC6E4DE5AEFE8F93D5" authorityName="Westrop & Eoff" authorityYear="2020" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="newfoundlandensis">
|
||
<emphasis id="B92A0033FFBBFFDC6E4DE5AEFA9793A9" box="[1288,1305,406,431]" italics="true" pageId="20" pageNumber="21">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFBBFFDC6E63E5ADFE8F93D5" italics="true" pageId="20" pageNumber="21">newfoundlandensis</emphasis>
|
||
</taxonomicName>
|
||
, so that the maximum length (exsag.) of the posterolateral projection is greater, and the posterior branches of the facial sutures are less strongly divergent (compare Pl. 1, fig. 5 with Pl. 21, figs 1, 5).
|
||
<taxonomicName id="4C5EA7A2FFBBFFDC6FE1E5E5FACA93F1" authorityName="Lochman, in Lochman & Duncan" authorityYear="1944" box="[1188,1348,477,503]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="janei">
|
||
<emphasis id="B92A0033FFBBFFDC6FE1E5E5FACA93F1" box="[1188,1348,477,503]" italics="true" pageId="20" pageNumber="21">Blountia janei</emphasis>
|
||
</taxonomicName>
|
||
is most clearly differentiated from
|
||
<taxonomicName id="4C5EA7A2FFBBFFDC6A83E63AFD32901D" authorityName="Westrop & Eoff" authorityYear="2020" box="[454,700,513,539]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="newfoundlandensis">
|
||
<emphasis id="B92A0033FFBBFFDC6A83E63AFE59901D" box="[454,471,514,539]" italics="true" pageId="20" pageNumber="21">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFBBFFDC6AA0E639FD32901D" box="[485,700,513,539]" italics="true" pageId="20" pageNumber="21">newfoundlandensis</emphasis>
|
||
</taxonomicName>
|
||
by the relatively longer pygidium that has a shorter axis (e.g., Pl. 7, figs 1–8), and the cranidium has a longer frontal area that occupies one-third, rather than about one-quarter, of cranidial length (Pl. 8).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |