197 lines
23 KiB
XML
197 lines
23 KiB
XML
<document id="E3E558D33BA3B26B99ED959299B3910B" 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="03F76D37FFB9FFDE6BD2E12AFB0D95DF" 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="Blountina Lochman, in Lochman & Duncan 1944" docType="treatment" docVersion="4" lastPageNumber="23" 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="23" updateTime="1698776919363" updateUser="plazi">
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<mods:titleInfo id="D7217228AC1FD74CAA6FC4B74A628386">
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<mods:title id="AC33900B8133A37B2C58600BE112956F">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:name id="9C612D7A7275242B904CE08A54F21E56" type="personal">
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<mods:namePart id="015F6BD09776FE5944621B729AB316BF">Westrop, Madison Armstrong Stephen R.</mods:namePart>
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<mods:name id="91E5AB8EE2B320B73B3241C70E817E94" type="personal">
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<mods:roleTerm id="CF492CCE3CD9D40DA8D1B2A85B0F1834">Author</mods:roleTerm>
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<mods:namePart id="EA17D88FE6BE9C1EAFCD7330F22F54F1">Eoff, Jennifer D.</mods:namePart>
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<mods:typeOfResource id="D60D76B1FD1EE852EE09EE3FA1EC7BEA">text</mods:typeOfResource>
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<mods:title id="6368EEF07C6A05C4B307B46F66543383">Zootaxa</mods:title>
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</mods:titleInfo>
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<mods:part id="7B895531D7AD1C5533D95F357465786E">
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<mods:date id="F4C9DCA0A9533CD88BCB2610B168C3A5">2020</mods:date>
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<mods:number id="AD6FF75AEE345A2E80514995BDB36E51">2020-06-30</mods:number>
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<mods:detail id="0CB50B96D6B28215D58514EF46863D34" type="volume">
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<mods:number id="304BD49715CE284432656B34C0BA9A3E">4804</mods:number>
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<mods:classification id="D66BF98B1540DF34500DF907315AB584">journal article</mods:classification>
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<mods:identifier id="0C7C05D3DD2E6C4EAD9349F3DB023FAE" type="DOI">10.11646/zootaxa.4804.1.1</mods:identifier>
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<mods:identifier id="F4F7CFAD7E4797219C64AA1FCC2E323F" type="ISSN">1175-5326</mods:identifier>
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<treatment id="03F76D37FFB9FFDE6BD2E12AFB0D95DF" ID-DOI="http://doi.org/10.5281/zenodo.4333491" ID-Zenodo-Dep="4333491" LSID="urn:lsid:plazi:treatment:03F76D37FFB9FFDE6BD2E12AFB0D95DF" httpUri="http://treatment.plazi.org/id/03F76D37FFB9FFDE6BD2E12AFB0D95DF" lastPageNumber="23" pageId="22" pageNumber="23">
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<subSubSection id="C3448FAAFFB9FFDE6BD2E12AFCD1972A" box="[151,863,1298,1325]" pageId="22" pageNumber="23" type="nomenclature">
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<paragraph id="8BE1DC21FFB9FFDE6BD2E12AFCD1972A" blockId="22.[151,863,1298,1325]" box="[151,863,1298,1325]" pageId="22" pageNumber="23">
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<heading id="D0A96B4DFFB9FFDE6BD2E12AFCD1972A" bold="true" box="[151,863,1298,1325]" fontSize="11" level="1" pageId="22" pageNumber="23" reason="1">
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<emphasis id="B92A0033FFB9FFDE6BD2E12AFCD1972A" bold="true" box="[151,863,1298,1325]" pageId="22" pageNumber="23">
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Genus
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<taxonomicName id="4C5EA7A2FFB9FFDE6BABE12AFCD1972A" authority="Lochman, in Lochman & Duncan, 1944" authorityName="Lochman, in Lochman & Duncan" authorityYear="1944" box="[238,863,1298,1325]" class="Trilobita" family="Asaphiscidae" genus="Blountina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="genus">
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<emphasis id="B92A0033FFB9FFDE6BABE12AFEE6972B" bold="true" box="[238,360,1298,1325]" italics="true" pageId="22" pageNumber="23">Blountina</emphasis>
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Lochman, in
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<bibRefCitation id="EFCFA1D0FFB9FFDE6950E12BFCD1972A" author="Lochman, C. & Duncan, D." box="[533,863,1298,1325]" pageId="22" pageNumber="23" pagination="1 - 172" refId="ref23573" refString="Lochman, C. & Duncan, D. (1944) Early Upper Cambrian faunas of Central Montana. Geological Society of America Special Papers, 54, 1 - 172. https: // doi. org / 10.1130 / SPE 54 - p 1" type="journal article" year="1944">Lochman & Duncan, 1944</bibRefCitation>
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</taxonomicName>
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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="C3448FAAFFB9FFDE6BD2E162FCE6979F" pageId="22" pageNumber="23" type="type_taxon">
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<paragraph id="8BE1DC21FFB9FFDE6BD2E162FCE6979F" blockId="22.[151,1437,1369,2009]" pageId="22" pageNumber="23">
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<materialsCitation id="3B36D67CFFB9FFDE6BD2E162FCEA979F" county="Pilgrim Formation" location="Big Snowy Mountains" municipality="Half Moon Pass" pageId="22" pageNumber="23" specimenCount="1" stateProvince="Montana" typeStatus="holotype">
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<emphasis id="B92A0033FFB9FFDE6BD2E162FEBC9772" bold="true" box="[151,306,1369,1396]" pageId="22" pageNumber="23">
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<typeStatus id="54E56283FFB9FFDE6BD2E162FF5C9772" box="[151,210,1370,1396]" pageId="22" pageNumber="23">Type</typeStatus>
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species.
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</emphasis>
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<taxonomicName id="4C5EA7A2FFB9FFDE6A7CE162FC599772" authority="Lochman, in Lochman & Duncan, 1944" authorityName="Lochman, in Lochman & Duncan" authorityYear="1944" box="[313,983,1370,1397]" class="Trilobita" family="Asaphiscidae" genus="Blountina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="eleanora">
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<emphasis id="B92A0033FFB9FFDE6A7CE162FD9C9772" box="[313,530,1370,1396]" italics="true" pageId="22" pageNumber="23">Blountina eleanora</emphasis>
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Lochman, in
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<bibRefCitation id="EFCFA1D0FFB9FFDE69E9E162FC599772" author="Lochman, C. & Duncan, D." box="[684,983,1370,1397]" pageId="22" pageNumber="23" pagination="1 - 172" refId="ref23573" refString="Lochman, C. & Duncan, D. (1944) Early Upper Cambrian faunas of Central Montana. Geological Society of America Special Papers, 54, 1 - 172. https: // doi. org / 10.1130 / SPE 54 - p 1" type="journal article" year="1944">Lochman & Duncan, 1944</bibRefCitation>
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</taxonomicName>
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from the
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<collectingCounty id="6280A4ADFFB9FFDE6F01E162FA989772" box="[1092,1302,1370,1396]" pageId="22" pageNumber="23">Pilgrim Formation</collectingCounty>
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,
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<collectingMunicipality id="6B85465BFFB9FFDE6E64E162FF45979F" pageId="22" pageNumber="23">Half Moon Pass</collectingMunicipality>
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,
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<location id="8E818AFAFFB9FFDE6B92E146FE58979E" LSID="urn:lsid:plazi:treatment:03F76D37FFB9FFDE6BD2E12AFB0D95DF:8E818AFAFFB9FFDE6B92E146FE58979E" box="[215,470,1406,1432]" county="Pilgrim Formation" municipality="Half Moon Pass" name="Big Snowy Mountains" pageId="22" pageNumber="23" stateProvince="Montana">Big Snowy Mountains</location>
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,
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<collectingRegion id="499A12C3FFB9FFDE6AA4E147FDCB979F" box="[481,581,1407,1433]" country="United States of America" name="Montana" pageId="22" pageNumber="23">Montana</collectingRegion>
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(by original designation)
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</materialsCitation>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="C3448FAAFFB9FFDE6B82E199FEE59402" pageId="22" pageNumber="23" type="diagnosis">
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<paragraph id="8BE1DC21FFB9FFDE6B82E199FEE59402" blockId="22.[151,1437,1369,2009]" pageId="22" pageNumber="23">
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<emphasis id="B92A0033FFB9FFDE6B82E199FECC97BA" bold="true" box="[199,322,1441,1468]" pageId="22" pageNumber="23">Diagnosis.</emphasis>
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Strongly furrowed with long anterior cranidial border occupying 62% (60–66) of short frontal area. Tips of posterolateral projection strongly deflected backward. Pygidial border furrow nearly effaced; border flexed steeply downward.
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</paragraph>
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</subSubSection>
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<subSubSection id="C3448FAAFFB9FFDE6B82E235FB0D95DF" pageId="22" pageNumber="23" type="discussion">
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<paragraph id="8BE1DC21FFB9FFDE6B82E235FB2F956A" blockId="22.[151,1437,1369,2009]" pageId="22" pageNumber="23">
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<emphasis id="B92A0033FFB9FFDE6B82E235FEC2942E" bold="true" box="[199,332,1549,1576]" pageId="22" pageNumber="23">Discussion.</emphasis>
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Opinions on
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<taxonomicName id="4C5EA7A2FFB9FFDE6AAEE236FD43942E" authority="Lochman" authorityName="Lochman, in Lochman & Duncan" authorityYear="1944" box="[491,717,1550,1576]" class="Trilobita" family="Asaphiscidae" genus="Blountina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="genus">
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<emphasis id="B92A0033FFB9FFDE6AAEE236FDD7942E" box="[491,601,1550,1576]" italics="true" pageId="22" pageNumber="23">Blountina</emphasis>
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Lochman
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</taxonomicName>
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have varied.
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<bibRefCitation id="EFCFA1D0FFB9FFDE682EE236FC70942E" author="Shaw, A. B." box="[875,1022,1549,1576]" pageId="22" pageNumber="23" pagination="458 - 483" refId="ref24002" refString="Shaw, A. B. (1952) Paleontology of Northwestern Vermont: II. Fauna of the Upper Cambrian Rockledge Conglomerate near St. Albans. Journal of Paleontology, 26, 458 - 483." type="journal article" year="1952">Shaw (1952)</bibRefCitation>
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considered the genus to be a junior synonym of
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<taxonomicName id="4C5EA7A2FFB9FFDE6A61E20AFDEB944A" authority="Raymond 1937" authorityName="Raymond" authorityYear="1937" box="[292,613,1586,1612]" class="Trilobita" family="Kingstoniidae" genus="Protillaenus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="genus">
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<emphasis id="B92A0033FFB9FFDE6A61E20AFE23944A" box="[292,429,1586,1612]" italics="true" pageId="22" pageNumber="23">Protillaenus</emphasis>
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Raymond 1937
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</taxonomicName>
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, whereas
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<bibRefCitation id="EFCFA1D0FFB9FFDE6991E20AFCFD944A" author="Rasetti, F." box="[724,883,1585,1612]" pageId="22" pageNumber="23" pagination="1266 - 1269" refId="ref23835" refString="Rasetti, F. (1956) Revision of the trilobite genus Maryvillia Walcott. Journal of Paleontology, 30, 1266 - 1269." type="journal article" year="1956">Rasetti (1956)</bibRefCitation>
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treated both
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<taxonomicName id="4C5EA7A2FFB9FFDE6F4DE20AFBF8944A" authorityName="Lochman, in Lochman & Duncan" authorityYear="1944" box="[1032,1142,1586,1612]" class="Trilobita" family="Asaphiscidae" genus="Blountina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="genus">
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<emphasis id="B92A0033FFB9FFDE6F4DE20AFBF8944A" box="[1032,1142,1586,1612]" italics="true" pageId="22" pageNumber="23">Blountina</emphasis>
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</taxonomicName>
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and
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<taxonomicName id="4C5EA7A2FFB9FFDE6FEBE20AFAB9944A" authorityName="Raymond" authorityYear="1937" box="[1198,1335,1586,1612]" class="Trilobita" family="Kingstoniidae" genus="Protillaenus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="genus">
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<emphasis id="B92A0033FFB9FFDE6FEBE20AFAB9944A" box="[1198,1335,1586,1612]" italics="true" pageId="22" pageNumber="23">Protillaenus</emphasis>
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</taxonomicName>
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as synonyms of
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<taxonomicName id="4C5EA7A2FFB9FFDE6BBFE26EFEFE9476" authorityName="Walcott" authorityYear="1916" box="[250,368,1622,1648]" class="Trilobita" family="Kingstoniidae" genus="Maryvillia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="genus">
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<emphasis id="B92A0033FFB9FFDE6BBFE26EFEFE9476" box="[250,368,1622,1648]" italics="true" pageId="22" pageNumber="23">Maryvillia</emphasis>
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</taxonomicName>
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. Restudy of the
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<typeStatus id="54E56283FFB9FFDE696FE26FFDD49477" box="[554,602,1623,1649]" pageId="22" pageNumber="23">type</typeStatus>
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species,
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<taxonomicName id="4C5EA7A2FFB9FFDE6984E26EFB859476" authority="Lochman" authorityName="Lochman, in Lochman & Duncan" authorityYear="1944" box="[705,1035,1622,1648]" class="Trilobita" family="Asaphiscidae" genus="Blountina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="eleanora">
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<emphasis id="B92A0033FFB9FFDE6984E26EFC149476" box="[705,922,1622,1648]" italics="true" pageId="22" pageNumber="23">Blountina eleanora</emphasis>
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Lochman
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</taxonomicName>
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(Pls 26, 27), shows that it lacks the synapomorphies of
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<taxonomicName id="4C5EA7A2FFB9FFDE6A37E242FE669492" authorityName="Walcott" authorityYear="1916" box="[370,488,1658,1684]" class="Trilobita" family="Kingstoniidae" genus="Maryvillia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="genus">
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<emphasis id="B92A0033FFB9FFDE6A37E242FE669492" box="[370,488,1658,1684]" italics="true" pageId="22" pageNumber="23">Maryvillia</emphasis>
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</taxonomicName>
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(see above) and the structure of the cladogram allows
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<taxonomicName id="4C5EA7A2FFB9FFDE6F06E242FB3F9492" authorityName="Lochman, in Lochman & Duncan" authorityYear="1944" box="[1091,1201,1658,1684]" class="Trilobita" family="Asaphiscidae" genus="Blountina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="genus">
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<emphasis id="B92A0033FFB9FFDE6F06E242FB3F9492" box="[1091,1201,1658,1684]" italics="true" pageId="22" pageNumber="23">Blountina</emphasis>
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</taxonomicName>
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to be retained for the present as a monotypic genus. A broader analysis of
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<taxonomicName id="4C5EA7A2FFB9FFDE69A2E2A6FC0A94BE" authorityName="Kobayashi" authorityYear="1933" box="[743,900,1694,1720]" class="Trilobita" family="Kingstoniidae" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="family">Kingstoniidae</taxonomicName>
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may help clarify its status. Cranidial characters that might diagnose
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<taxonomicName id="4C5EA7A2FFB9FFDE6A3AE2FAFE6394DA" authorityName="Lochman, in Lochman & Duncan" authorityYear="1944" box="[383,493,1730,1756]" class="Trilobita" family="Asaphiscidae" genus="Blountina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="genus">
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<emphasis id="B92A0033FFB9FFDE6A3AE2FAFE6394DA" box="[383,493,1730,1756]" italics="true" pageId="22" pageNumber="23">Blountina</emphasis>
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</taxonomicName>
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include a long anterior border occupying slight more than 60% of the short frontal area, and strongly deflected tips of the posterolateral projection. The grade of effacement of the pleural field and border furrow of the pygidium (Pl. 27) resembles the condition in
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<taxonomicName id="4C5EA7A2FFB9FFDE68C1E333FC719522" box="[900,1023,1803,1828]" class="Magnoliopsida" family="Annonaceae" genus="Kingstonia" higherTaxonomySource="CoL" kingdom="Plantae" order="Magnoliales" pageId="22" pageNumber="23" phylum="Tracheophyta" rank="genus">
|
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<emphasis id="B92A0033FFB9FFDE68C1E333FC719522" box="[900,1023,1803,1828]" italics="true" pageId="22" pageNumber="23">Kingstonia</emphasis>
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</taxonomicName>
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(e.g.,
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<taxonomicName id="4C5EA7A2FFB9FFDE6F02E333FB5B9522" authorityName="Rasetti" authorityYear="1946" box="[1095,1237,1803,1829]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="gaspensis">
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<emphasis id="B92A0033FFB9FFDE6F02E333FBD49522" box="[1095,1114,1803,1828]" italics="true" pageId="22" pageNumber="23">K</emphasis>
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.
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<emphasis id="B92A0033FFB9FFDE6F2DE333FB5B9522" box="[1128,1237,1803,1828]" italics="true" pageId="22" pageNumber="23">gaspensis</emphasis>
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</taxonomicName>
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; Fig. 1.6, 1.7), as does the strong downward flexure of the border. Although the pygidial axis is mostly effaced in
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<taxonomicName id="4C5EA7A2FFB9FFDE6F82E317FADB954E" authorityName="Rasetti" authorityYear="1946" box="[1223,1365,1839,1865]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="gaspensis">
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<emphasis id="B92A0033FFB9FFDE6F82E317FB54954E" box="[1223,1242,1839,1864]" italics="true" pageId="22" pageNumber="23">K</emphasis>
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.
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<emphasis id="B92A0033FFB9FFDE6FADE317FADB954E" box="[1256,1365,1839,1864]" italics="true" pageId="22" pageNumber="23">gaspensis</emphasis>
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</taxonomicName>
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, other species retain a convex axis similar to that of
|
||
<taxonomicName id="4C5EA7A2FFB9FFDE69D3E36BFC97956A" authorityName="Lochman, in Lochman & Duncan" authorityYear="1944" box="[662,793,1874,1901]" class="Trilobita" family="Asaphiscidae" genus="Blountina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="eleanora">
|
||
<emphasis id="B92A0033FFB9FFDE69D3E36BFD29956A" box="[662,679,1875,1900]" italics="true" pageId="22" pageNumber="23">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFB9FFDE69F0E36AFC97956A" box="[693,793,1874,1900]" italics="true" pageId="22" pageNumber="23">eleanora</emphasis>
|
||
</taxonomicName>
|
||
(e.g.,
|
||
<bibRefCitation id="EFCFA1D0FFB9FFDE681AE36AFC61956A" author="Rasetti, F." box="[863,1007,1874,1900]" pageId="22" pageNumber="23" pagination="442 - 446" refId="ref23810" refString="Rasetti, F. (1946) Early Upper Cambrian trilobites from western Gaspe. Journal of Paleontology, 20, 442 - 446." type="journal article" year="1946">Rasetti 1946</bibRefCitation>
|
||
, pl. 69, fig. 31).
|
||
</paragraph>
|
||
<paragraph id="8BE1DC21FFB9FFDE6B82E34EFB0D95DF" blockId="22.[151,1437,1369,2009]" pageId="22" pageNumber="23">
|
||
<taxonomicName id="4C5EA7A2FFB9FFDE6B82E34EFCB69597" authority="Lochman in Lochman & Duncan" authorityName="Lochman, in Lochman & Duncan" authorityYear="1944" box="[199,824,1910,1937]" class="Trilobita" family="Asaphiscidae" genus="Blountina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="triangularis">
|
||
<emphasis id="B92A0033FFB9FFDE6B82E34EFE4C9596" box="[199,450,1910,1936]" italics="true" pageId="22" pageNumber="23">Blountina triangularis</emphasis>
|
||
Lochman in Lochman & Duncan
|
||
</taxonomicName>
|
||
is closely related to
|
||
<taxonomicName id="4C5EA7A2FFB9FFDE6F59E34FFBF09596" authorityName="Walcott" authorityYear="1916" box="[1052,1150,1911,1937]" class="Trilobita" family="Kingstoniidae" genus="Maryvillia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="arion">
|
||
<emphasis id="B92A0033FFB9FFDE6F59E34FFBBD9596" box="[1052,1075,1911,1936]" italics="true" pageId="22" pageNumber="23">M</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFB9FFDE6F04E34FFBF09596" box="[1089,1150,1911,1936]" italics="true" pageId="22" pageNumber="23">arion</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="1365C0A4FFB9FFDE6FC9E34EFB5E9596" box="[1164,1232,1910,1936]" captionStart="FIGURE 2" captionStartId="8.[151,250,1743,1768]" captionTargetBox="[164,1423,184,1714]" captionTargetId="figure@8.[164,1423,179,1722]" captionTargetPageId="8" captionText="FIGURE 2. Phylogenetic analysis of Blountia and related taxa. 1. Strict consensus of six trees of length 30 (CI, 0.50; RI, 0.62; RC, 0.31). Names of species from Steptoean strata are identified by bold font. 2. Optimized character distribution plotted on one of the most parsimonious trees. Only unambiguous transformations (i.e., optimize to the same nodes under the assumptions of ACCTRAN and DELTRAN) are shown; open circles indicate characters that are homoplastic. Numbers above the circles refer to characters and those below identify particular states (Table 2)." figureDoi="http://doi.org/10.5281/zenodo.3927098" httpUri="https://zenodo.org/record/3927098/files/figure.png" pageId="22" pageNumber="23">Fig. 2</figureCitation>
|
||
), and both species are assigned to
|
||
<taxonomicName id="4C5EA7A2FFB9FFDE6A06E3A2FE3795B2" authorityName="Walcott" authorityYear="1916" box="[323,441,1946,1972]" class="Trilobita" family="Kingstoniidae" genus="Maryvillia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B92A0033FFB9FFDE6A06E3A2FE3795B2" box="[323,441,1946,1972]" italics="true" pageId="22" pageNumber="23">Maryvillia</emphasis>
|
||
</taxonomicName>
|
||
as revised in this study (see discussion above).
|
||
<taxonomicName id="4C5EA7A2FFB9FFDE6888E3A2FBD895B2" authorityName="Raymond" authorityYear="1937" box="[973,1110,1946,1972]" class="Trilobita" family="Kingstoniidae" genus="Protillaenus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ptychopariida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B92A0033FFB9FFDE6888E3A2FBD895B2" box="[973,1110,1946,1972]" italics="true" pageId="22" pageNumber="23">Protillaenus</emphasis>
|
||
</taxonomicName>
|
||
is based on poorly preserved material (e.g.,
|
||
<bibRefCitation id="EFCFA1D0FFB9FFDE6A7FE386FE3495DE" author="Shaw, A. B." box="[314,442,1981,2008]" pageId="22" pageNumber="23" pagination="458 - 483" refId="ref24002" refString="Shaw, A. B. (1952) Paleontology of Northwestern Vermont: II. Fauna of the Upper Cambrian Rockledge Conglomerate near St. Albans. Journal of Paleontology, 26, 458 - 483." type="journal article" year="1952">Shaw 1952</bibRefCitation>
|
||
, pl. 57, figs 14, 15), and the name is best restricted to the
|
||
<typeStatus id="54E56283FFB9FFDE6F05E387FBF195DF" box="[1088,1151,1983,2009]" pageId="22" pageNumber="23">types</typeStatus>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |