192 lines
23 KiB
XML
192 lines
23 KiB
XML
<document id="CB05E42D06DF1847741861ED5F0EE499" 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="03F76D37FFBFFFD86BD2E4A1FD249505" 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 angelae Westrop & Eoff 2020, n. sp." docType="treatment" docVersion="4" lastPageNumber="17" 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="17" updateTime="1698776919363" updateUser="plazi">
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<mods:titleInfo id="5EE394159D487FD0C81BA716B41EF6AB">
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<mods:title id="B62B3EB944EA1415F8DAE18362962DD2">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="1479D584230F711C8BB103058BCAEB24" type="personal">
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<mods:roleTerm id="D8F3A136B0190F8FEFE792BA4B1D3D00">Author</mods:roleTerm>
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<mods:namePart id="C57222A192A7D2CCE9162177933814F8">Westrop, Madison Armstrong Stephen R.</mods:namePart>
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</mods:name>
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<mods:name id="BFD03774984BF3FFA682B5745623F737" type="personal">
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<mods:roleTerm id="4812923CDE01FE2DB67C12D6E726643E">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="CC3B43A177146ECF0EAAA1C6F81ECA47">Eoff, Jennifer D.</mods:namePart>
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</mods:name>
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<mods:typeOfResource id="33EDD66691AF54112BECEC098158A471">text</mods:typeOfResource>
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<mods:title id="422F0E7C3B92626F3BCA7D64CA60D265">Zootaxa</mods:title>
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</mods:titleInfo>
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<mods:part id="9B3B836619D376963F487697E9FFCC98">
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<mods:date id="FCE70F4E87ABB245C14979814C989454">2020</mods:date>
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<mods:detail id="2FEA5A61A7DC6DF24F745B4F2630E236" type="pubDate">
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<mods:number id="3D40869C65DA0843F4DD096EF03BCDFC">2020-06-30</mods:number>
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<mods:detail id="2FDB39364EFBEE393FFBC67203CA141C" type="volume">
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<mods:number id="A3E4124A2AF2C0176190AD1CD1581A7E">4804</mods:number>
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<mods:detail id="EB9D21B86A31F575543EA7D24D9D9AE4" type="issue">
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<mods:start id="736ED5ACD1C823F8AD580863F681F801">1</mods:start>
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<mods:classification id="C0815E0CC6627A92F3E5A556AB386B5C">journal article</mods:classification>
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<mods:identifier id="5E447CBF75378C4BBF0D5796828F5AEC" type="DOI">10.11646/zootaxa.4804.1.1</mods:identifier>
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<mods:identifier id="981C30F4876ABD1DD6DC1D80EC96018C" type="ISSN">1175-5326</mods:identifier>
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<treatment id="03F76D37FFBFFFD86BD2E4A1FD249505" LSID="urn:lsid:plazi:treatment:03F76D37FFBFFFD86BD2E4A1FD249505" httpUri="http://treatment.plazi.org/id/03F76D37FFBFFFD86BD2E4A1FD249505" lastPageNumber="17" pageId="16" pageNumber="17">
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<subSubSection id="C3448FAAFFBFFFD86BD2E4A1FE3F92B2" box="[151,433,153,180]" pageId="16" pageNumber="17" type="nomenclature">
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<paragraph id="8BE1DC21FFBFFFD86BD2E4A1FE3F92B2" blockId="16.[151,433,153,216]" box="[151,433,153,180]" pageId="16" pageNumber="17">
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<heading id="D0A96B4DFFBFFFD86BD2E4A1FE3F92B2" bold="true" box="[151,433,153,180]" fontSize="11" level="1" pageId="16" pageNumber="17" reason="1">
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<emphasis id="B92A0033FFBFFFD86BD2E4A1FE3F92B2" bold="true" box="[151,433,153,180]" pageId="16" pageNumber="17">
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<taxonomicName id="4C5EA7A2FFBFFFD86BD2E4A1FEE992B2" authority="Westrop & Eoff, 2020" authorityName="Westrop & Eoff" authorityYear="2020" box="[151,359,153,180]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="16" pageNumber="17" phylum="Arthropoda" rank="species" species="angelae" status="sp. nov.">
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<emphasis id="B92A0033FFBFFFD86BD2E4A1FEE992B2" bold="true" box="[151,359,153,180]" italics="true" pageId="16" pageNumber="17">Blountia angelae</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A219BD48FFBFFFD86A2BE4A2FE3F92B2" box="[366,433,154,180]" pageId="16" pageNumber="17" 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="C3448FAAFFBFFFD86BD2E485FC83931C" pageId="16" pageNumber="17" type="description">
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<paragraph id="8BE1DC21FFBFFFD86BD2E485FF7C92DE" blockId="16.[151,433,153,216]" box="[151,242,189,216]" pageId="16" pageNumber="17">
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<figureCitation id="1365C0A4FFBFFFD86BD2E485FF7C92DE" box="[151,242,189,216]" captionStart="PLATE 15" captionStartId="54.[151,234,1839,1864]" captionText="PLATE 15. Blountia angelae n. sp., Nolichucky Formation, Hurricane Hollow section (cnr/17), Union County, Tennessee." pageId="16" pageNumber="17">Plate 15</figureCitation>
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</paragraph>
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<paragraph id="8BE1DC21FFBFFFD86BD2E539FC83931C" blockId="16.[151,781,257,282]" box="[151,781,257,282]" pageId="16" pageNumber="17">
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1965
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<taxonomicName id="4C5EA7A2FFBFFFD86B95E53AFE5C931C" authority="Walcott" authorityName="Walcott" authorityYear="1916" box="[208,466,257,282]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="16" pageNumber="17" phylum="Arthropoda" rank="species" species="mimula">
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<emphasis id="B92A0033FFBFFFD86B95E53AFEF4931C" box="[208,378,258,282]" italics="true" pageId="16" pageNumber="17">Blountia mimula</emphasis>
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Walcott
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</taxonomicName>
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; Rasetti, p. 59, pl. 10, figs 3–7.
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</paragraph>
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</subSubSection>
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<subSubSection id="C3448FAAFFBFFFD86BD2E57FFCAC9010" pageId="16" pageNumber="17" type="diagnosis">
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<paragraph id="8BE1DC21FFBFFFD86BD2E57FFE6E93F4" blockId="16.[151,1437,327,1795]" pageId="16" pageNumber="17">
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<emphasis id="B92A0033FFBFFFD86BD2E57FFE9C9364" bold="true" box="[151,274,327,354]" pageId="16" pageNumber="17">Diagnosis.</emphasis>
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Cranidia with well-rounded anterior margin. Frontal area occupies 30% (30–31) of cranidial length (sag.), with down-sloping preglabellar field and flat border. Pygidium semielliptical in outline, length 64% (62–66) of maximum width. Down-sloping border long, occupying 14% (12–16) of pygidial length; border furrow well defined. Seven distinct axial rings in front of terminal piece of least three short segments. Exoskeleton smooth, internal mould displays dense pitting.
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</paragraph>
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<paragraph id="8BE1DC21FFBFFFD86BD2E5C4FCAC9010" blockId="16.[151,1437,327,1795]" box="[151,802,508,535]" pageId="16" pageNumber="17">
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<emphasis id="B92A0033FFBFFFD86BD2E5C4FF6A9010" bold="true" box="[151,228,508,534]" pageId="16" pageNumber="17">Name.</emphasis>
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For the senior author’s mother, Angela Armstrong.
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</paragraph>
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</subSubSection>
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<subSubSection id="C3448FAAFFBFFFD86B82E627FE1590CD" pageId="16" pageNumber="17" type="materials_examined">
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<paragraph id="8BE1DC21FFBFFFD86B82E627FA1E9085" blockId="16.[151,1437,327,1795]" pageId="16" pageNumber="17">
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<emphasis id="B92A0033FFBFFFD86B82E627FEB8903C" bold="true" box="[199,310,543,570]" pageId="16" pageNumber="17">Material.</emphasis>
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<materialsCitation id="3B36D67CFFBFFFD86A7BE618FA1E9085" collectionCode="USNM" county="Union County" location="Union County" pageId="16" pageNumber="17" specimenCode="USNM 144602" specimenCount="3" stateProvince="Tennessee" typeStatus="holotype">
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<typeStatus id="54E56283FFBFFFD86A7BE618FE28903C" box="[318,422,544,570]" pageId="16" pageNumber="17" type="holotype">Holotype</typeStatus>
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cranidium (
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<specimenCode id="DBF8745AFFBFFFD8696BE618FD51903C" box="[558,735,544,570]" collectionCode="USNM" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34871" lsid="urn:lsid:biocol.org:col:34871" name="Smithsonian Institution, National Museum of Natural History" pageId="16" pageNumber="17" type="Museum">USNM 144602</specimenCode>
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, Pl. 15, figs 1–3),
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<typeStatus id="54E56283FFBFFFD868EBE619FB80903D" box="[942,1038,545,571]" pageId="16" pageNumber="17" type="paratype">paratype</typeStatus>
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cranidium (
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<specimenCode id="DBF8745AFFBFFFD86FD2E618FAC6903C" box="[1175,1352,544,570]" collectionCode="USNM" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34871" lsid="urn:lsid:biocol.org:col:34871" name="Smithsonian Institution, National Museum of Natural History" pageId="16" pageNumber="17" type="Museum">USNM 144602</specimenCode>
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, Pl. 15, figs 1–3) and two
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<typeStatus id="54E56283FFBFFFD86A21E67DFE4A9059" box="[356,452,581,607]" pageId="16" pageNumber="17" type="paratype">paratype</typeStatus>
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pygidia (
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<specimenCode id="DBF8745AFFBFFFD8696BE67CFD519058" box="[558,735,580,606]" collectionCode="USNM" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34871" lsid="urn:lsid:biocol.org:col:34871" name="Smithsonian Institution, National Museum of Natural History" pageId="16" pageNumber="17" type="Museum">USNM 144602</specimenCode>
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, Pl. 15, fig. 6;
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<specimenCode id="DBF8745AFFBFFFD868C1E67CFBBE9058" box="[900,1072,580,606]" collectionCode="USNM" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34871" lsid="urn:lsid:biocol.org:col:34871" name="Smithsonian Institution, National Museum of Natural History" pageId="16" pageNumber="17" type="Museum">USNM 144602</specimenCode>
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Pl. 15, figs 7–9) from the
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<taxonomicName id="4C5EA7A2FFBFFFD86E1CE67CFD709084" authority="Zone, Nolichucky Formation, Hurricane Hollow" authorityName="Zone, Nolichucky Formation, Hurricane Hollow" class="Trilobita" family="Aphelaspididae" genus="Aphelaspis" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Asaphida" pageId="16" pageNumber="17" phylum="Arthropoda" rank="genus">
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<emphasis id="B92A0033FFBFFFD86E1CE67CFF569084" italics="true" pageId="16" pageNumber="17">Aphelaspis</emphasis>
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Zone, Nolichucky Formation, Hurricane Hollow
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</taxonomicName>
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(cnr/17) section (
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<bibRefCitation id="EFCFA1D0FFBFFFD86881E650FBD89084" author="Rasetti, F." box="[964,1110,615,642]" pageId="16" pageNumber="17" pagination="1 - 127" refId="ref23892" refString="Rasetti, F. (1965) Upper Cambrian trilobite faunas of Northeastern Tennessee. Smithsonian Miscellaneous Collections, 148, 1 - 127." type="journal article" year="1965">Rasetti 1965</bibRefCitation>
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),
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<collectingCounty id="6280A4ADFFBFFFD86F2FE650FA849084" box="[1130,1290,616,642]" pageId="16" pageNumber="17">Union County</collectingCounty>
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,
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<collectingRegion id="499A12C3FFBFFFD86E50E651FA059085" box="[1301,1419,617,643]" country="United States of America" name="Tennessee" pageId="16" pageNumber="17">Tennessee</collectingRegion>
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.
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</materialsCitation>
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</paragraph>
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<paragraph id="8BE1DC21FFBFFFD86B82E6B3FE1590CD" blockId="16.[151,1437,327,1795]" pageId="16" pageNumber="17">
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<emphasis id="B92A0033FFBFFFD86B82E6B3FED490A0" bold="true" box="[199,346,651,678]" pageId="16" pageNumber="17">Occurrence.</emphasis>
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<taxonomicName id="4C5EA7A2FFBFFFD86A24E6B4FD7890A0" authority="Zone, Hurricane Hollow" authorityName="Zone, Hurricane Hollow" box="[353,758,652,679]" class="Trilobita" family="Aphelaspididae" genus="Aphelaspis" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Asaphida" pageId="16" pageNumber="17" phylum="Arthropoda" rank="genus">
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<emphasis id="B92A0033FFBFFFD86A24E6B4FE5290A0" box="[353,476,652,678]" italics="true" pageId="16" pageNumber="17">Aphelaspis</emphasis>
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<materialsCitation id="3B36D67CFFBFFFD86AA6E6B5FD7890A0" box="[483,758,652,679]" county="Union County" location="Union County" pageId="16" pageNumber="17" specimenCount="1" stateProvince="Tennessee">Zone, Hurricane Hollow</materialsCitation>
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</taxonomicName>
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section (cnr/17) (
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<bibRefCitation id="EFCFA1D0FFBFFFD868F8E6B4FBC190A0" author="Rasetti, F." box="[957,1103,651,678]" pageId="16" pageNumber="17" pagination="1 - 127" refId="ref23892" refString="Rasetti, F. (1965) Upper Cambrian trilobite faunas of Northeastern Tennessee. Smithsonian Miscellaneous Collections, 148, 1 - 127." type="journal article" year="1965">Rasetti 1965</bibRefCitation>
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), Nolichucky Formation,
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<collectingCounty id="6280A4ADFFBFFFD86E34E6B5FE9890CC" pageId="16" pageNumber="17">Union County</collectingCounty>
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,
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<collectingRegion id="499A12C3FFBFFFD86A65E689FE1890CD" box="[288,406,689,715]" country="United States of America" name="Tennessee" pageId="16" pageNumber="17">Tennessee</collectingRegion>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="C3448FAAFFBFFFD86B82E6EBFF53942C" pageId="16" pageNumber="17" type="description">
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<paragraph id="8BE1DC21FFBFFFD86B82E6EBFACA967C" blockId="16.[151,1437,327,1795]" pageId="16" pageNumber="17">
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<emphasis id="B92A0033FFBFFFD86B82E6EBFED790E8" bold="true" box="[199,345,723,750]" pageId="16" pageNumber="17">Description.</emphasis>
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Cranidium subtrapezoidal in outline with a rounded anterior margin and constriction at palpebral lobes. Frontal area equals 30% (30–31) of cranidial length (sag.); preglabellar field accounts for 36% (35–38) of frontal area length, down-sloping into flat border separated by border furrow, which varies from well defined to being faint medially. Anterior border long, shortening slightly abaxially. Convex glabella subtrapezoidal in outline with well-rounded front, raised above fixed cheeks; axial and preglabellar furrows well-defined. Glabellar width at palpebral lobes equal to 75% (72–78) of glabellar length (sag.). Lateral glabellar furrows absent on testate surface. Posterior margin of occipital ring arcuate; SO not expressed on exoskeleton. Palpebral areas down sloping; combined width comprises 40% (41; 38–45) cranidial width at palpebral lobes. Palpebral lobes short, slightly curved bands, equal to 15% glabellar length; positioned in front of glabellar mid-length.Anterior branches of facial sutures diverge slightly before curving towards anterior margin. Posterior branches extend obliquely back, deflecting posteriorly to genal angle. Posterior border furrow well impressed, nearly transverse across posterolateral projections. Posterior margin directed obliquely back, gently curved towards posterior corner of cranidium. Exoskeleton smooth.
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</paragraph>
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<paragraph id="8BE1DC21FFBFFFD86B82E0BCFF53942C" blockId="16.[151,1437,327,1795]" pageId="16" pageNumber="17">Pygidium semielliptical in outline, sagittal length 64% (62–66) of maximum width. Long lateral and posterior borders, occupying 14% (12–16) pygidial length (sag.) but shorten somewhat anteriorly. Border down sloping, separated from pleural field by well-incised border furrow that weakens slightly posteriorly. Articulating facet present on anterior corners. Axis convex, raised above pleural field; comprises one-third (31%) of maximum pygidial width, tapering at border furrow. Articulating half-ring very short (3% axis length), slightly curved band; articulating furrow double the length of half-ring, both expressed on internal mould. Seven transverse axial rings plus two or three incorporated into terminal piece; defined on internal mould, faintly expressed on exoskeleton. Rings decrease in width posteriorly with gently inflated bosses developed abaxially and subtle crest raised along sagittal line. Pleural field gently inflated. Anteriormost pleural furrow long (exsag.), deep groove; remaining pleural furrows weakly defined on internal mould and barely perceptible on exoskeleton. Testate surface smooth; dense pitting (corresponding to small projections on underside of exoskeleton) on internal mould, with increased concentration on the pleural fields.</paragraph>
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</subSubSection>
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<subSubSection id="C3448FAAFFBFFFD86B82E20BFD249505" pageId="16" pageNumber="17" type="discussion">
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<paragraph id="8BE1DC21FFBFFFD86B82E20BFD249505" blockId="16.[151,1437,327,1795]" pageId="16" pageNumber="17">
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<emphasis id="B92A0033FFBFFFD86B82E20BFEC29448" bold="true" box="[199,332,1587,1614]" pageId="16" pageNumber="17">Discussion.</emphasis>
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These specimens were originally identified as
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<taxonomicName id="4C5EA7A2FFBFFFD8681DE20CFB9D9448" authorityName="Walcott" authorityYear="1916" box="[856,1043,1588,1614]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="16" pageNumber="17" phylum="Arthropoda" rank="species" species="mimula">
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<emphasis id="B92A0033FFBFFFD8681DE20CFB9D9448" box="[856,1043,1588,1614]" italics="true" pageId="16" pageNumber="17">Blountia mimula</emphasis>
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</taxonomicName>
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by
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<bibRefCitation id="EFCFA1D0FFBFFFD86F79E20CFB559448" author="Rasetti, F." box="[1084,1243,1587,1614]" pageId="16" pageNumber="17" pagination="1 - 127" refId="ref23892" refString="Rasetti, F. (1965) Upper Cambrian trilobite faunas of Northeastern Tennessee. Smithsonian Miscellaneous Collections, 148, 1 - 127." type="journal article" year="1965">Rasetti (1965)</bibRefCitation>
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but, as discussed above, they belong to a different, new species. Comparisons with
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<taxonomicName id="4C5EA7A2FFBFFFD86830E261FC699474" authorityName="Walcott" authorityYear="1916" box="[885,999,1624,1651]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="16" pageNumber="17" phylum="Arthropoda" rank="species" species="mimula">
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<emphasis id="B92A0033FFBFFFD86830E261FC089474" box="[885,902,1625,1650]" italics="true" pageId="16" pageNumber="17">B</emphasis>
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.
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<emphasis id="B92A0033FFBFFFD868D6E260FC699474" box="[915,999,1624,1650]" italics="true" pageId="16" pageNumber="17">mimula</emphasis>
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</taxonomicName>
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,
|
||
<taxonomicName id="4C5EA7A2FFBFFFD868B0E261FBC99474" authorityName="Lochman, in Lochman & Duncan" authorityYear="1944" box="[1013,1095,1625,1651]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="16" pageNumber="17" phylum="Arthropoda" rank="species" species="cora">
|
||
<emphasis id="B92A0033FFBFFFD868B0E261FB889474" box="[1013,1030,1625,1650]" italics="true" pageId="16" pageNumber="17">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFBFFFD86F51E261FBC99474" box="[1044,1095,1625,1650]" italics="true" pageId="16" pageNumber="17">cora</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C5EA7A2FFBFFFD86F10E261FB259474" authorityName="Lochman, in Lochman & Duncan" authorityYear="1944" box="[1109,1195,1625,1651]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="16" pageNumber="17" phylum="Arthropoda" rank="species" species="janei">
|
||
<emphasis id="B92A0033FFBFFFD86F10E261FBE89474" box="[1109,1126,1625,1650]" italics="true" pageId="16" pageNumber="17">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFBFFFD86F36E261FB259474" box="[1139,1195,1625,1650]" italics="true" pageId="16" pageNumber="17">janei</emphasis>
|
||
</taxonomicName>
|
||
, and
|
||
<taxonomicName id="4C5EA7A2FFBFFFD86FADE261FAFA9474" authorityName="Rasetti" authorityYear="1946" box="[1256,1396,1625,1651]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="16" pageNumber="17" phylum="Arthropoda" rank="species" species="gaspensis">
|
||
<emphasis id="B92A0033FFBFFFD86FADE261FB779474" box="[1256,1273,1625,1650]" italics="true" pageId="16" pageNumber="17">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFBFFFD86E42E261FAFA9474" box="[1287,1396,1625,1650]" italics="true" pageId="16" pageNumber="17">gaspensis</emphasis>
|
||
</taxonomicName>
|
||
are presented earlier in the text.
|
||
<taxonomicName id="4C5EA7A2FFBFFFD86A93E244FD199490" authorityName="Westrop & Eoff" authorityYear="2020" box="[470,663,1660,1686]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="16" pageNumber="17" phylum="Arthropoda" rank="species" species="angelae">
|
||
<emphasis id="B92A0033FFBFFFD86A93E244FD199490" box="[470,663,1660,1686]" italics="true" pageId="16" pageNumber="17">Blountia angelae</emphasis>
|
||
</taxonomicName>
|
||
differs from
|
||
<taxonomicName id="4C5EA7A2FFBFFFD8686EE245FC459490" authorityName="Resser" authorityYear="1938" box="[811,971,1660,1686]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="16" pageNumber="17" phylum="Arthropoda" rank="species" species="bristolensis">
|
||
<emphasis id="B92A0033FFBFFFD8686EE245FC459490" box="[811,971,1660,1686]" italics="true" pageId="16" pageNumber="17">B. bristolensis</emphasis>
|
||
</taxonomicName>
|
||
in having longer frontal area (accounting for 30% cranidial width compared to 23%), a gently sloping preglabellar field, and a shallow anterior border furrow. The pygidia share well-defined border furrows, but
|
||
<taxonomicName id="4C5EA7A2FFBFFFD86848E2FDFC0B94D8" authorityName="Westrop & Eoff" authorityYear="2020" box="[781,901,1732,1759]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="16" pageNumber="17" phylum="Arthropoda" rank="species" species="angelae">
|
||
<emphasis id="B92A0033FFBFFFD86848E2FDFC9094D8" box="[781,798,1733,1758]" italics="true" pageId="16" pageNumber="17">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFBFFFD86869E2FCFC0B94D8" box="[812,901,1732,1758]" italics="true" pageId="16" pageNumber="17">angelae</emphasis>
|
||
</taxonomicName>
|
||
is relatively longer, with length equal to 64% of maximum width, versus 55% in
|
||
<taxonomicName id="4C5EA7A2FFBFFFD86946E2D1FD2D9504" authorityName="Resser" authorityYear="1938" box="[515,675,1768,1795]" class="Trilobita" family="Kingstoniidae" genus="Blountia" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Ptychopariida" pageId="16" pageNumber="17" phylum="Arthropoda" rank="species" species="bristolensis">
|
||
<emphasis id="B92A0033FFBFFFD86946E2D1FD9A9504" box="[515,532,1769,1794]" italics="true" pageId="16" pageNumber="17">B</emphasis>
|
||
.
|
||
<emphasis id="B92A0033FFBFFFD86967E2D0FD2D9504" box="[546,675,1768,1794]" italics="true" pageId="16" pageNumber="17">bristolensis</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |