135 lines
13 KiB
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135 lines
13 KiB
XML
<document ID-DOI="http://dx.doi.org/10.5852/ejt.2013.41" ID-GBIF-Dataset="386010a0-6da4-4fa3-9d1a-4b3b5427cac5" ID-ISSN="2118-9773" ID-Zenodo-Dep="3814221" ID-ZooBank="A2F1B9ED-870A-466E-B35E-BD5DA782476E" checkinTime="1588881240389" checkinUser="carolina" docAuthor="Kröger, Björn" docDate="2013" docId="AD4D9054CD266A24F0024319FAE1F815" docLanguage="en" docName="ejt-2013-41.pdf.imf" docOrigin="European Journal of Taxonomy 41" docStyle="DocumentStyle:EF2B578F1D15862ADE45B0C07C620911.12:EJT.2018-.journal_article" docStyleId="EF2B578F1D15862ADE45B0C07C620911" docStyleName="EJT.2018-.journal_article" docStyleVersion="12" docTitle="Tyrioceras Strand 1934" docType="treatment" docVersion="7" lastPageNumber="67" masterDocId="5174E82CCD646A66F260472AFFA5FFBD" masterDocTitle="The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden" masterLastPageNumber="110" masterPageNumber="1" pageNumber="67" updateTime="1634716833028" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-3.0" zenodo-license-figures="CC-BY-3.0" zenodo-license-treatments="UNSPECIFIED">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Kröger, Björn</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>European Journal of Taxonomy</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2013</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2013-03-27</mods:number>
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</mods:detail>
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<mods:detail type="issue">
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<mods:number>41</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>110</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.5852/ejt.2013.41</mods:identifier>
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<mods:identifier type="GBIF-Dataset">386010a0-6da4-4fa3-9d1a-4b3b5427cac5</mods:identifier>
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<mods:identifier type="ISSN">2118-9773</mods:identifier>
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<mods:identifier type="Zenodo-Dep">3814221</mods:identifier>
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<mods:identifier type="ZooBank">A2F1B9ED-870A-466E-B35E-BD5DA782476E</mods:identifier>
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</mods:mods>
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<treatment ID-DOI="http://doi.org/10.5281/zenodo.3815127" ID-GBIF-Taxon="163977266" ID-Zenodo-Dep="3815127" LSID="urn:lsid:plazi:treatment:AD4D9054CD266A24F0024319FAE1F815" httpUri="http://treatment.plazi.org/id/AD4D9054CD266A24F0024319FAE1F815" lastPageNumber="67" pageId="66" pageNumber="67">
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<subSubSection box="[610,978,1075,1101]" pageId="66" pageNumber="67" type="nomenclature">
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<paragraph blockId="66.[610,978,1075,1101]" box="[610,978,1075,1101]" pageId="66" pageNumber="67">
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<heading box="[610,978,1075,1101]" centered="true" fontSize="11" level="2" pageId="66" pageNumber="67" reason="2">
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Genus
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<taxonomicName authority="Strand, 1934" authorityName="Strand" authorityYear="1934" box="[692,978,1075,1101]" class="Cephalopoda" family="Sinoceratidae" genus="Tyrioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Tarphycerida" pageId="66" pageNumber="67" phylum="Mollusca" rank="genus">
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<emphasis bold="true" box="[692,820,1075,1101]" italics="true" pageId="66" pageNumber="67">Tyrioceras</emphasis>
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<bibRefCitation author="Strand T." box="[827,978,1075,1101]" pageId="66" pageNumber="67" pagination="1 - 117" refId="ref49308" refString="Strand T. 1934. The Upper Ordovician Cephalopods of the Oslo Area. Norsk Geologiske Tidsskrift 14: 1 - 117." type="journal article" year="1934">Strand, 1934</bibRefCitation>
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</taxonomicName>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="66" pageNumber="67" type="type_taxon">
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<paragraph blockId="66.[189,344,1140,1166]" box="[189,344,1140,1166]" pageId="66" pageNumber="67">
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<heading bold="true" box="[189,344,1140,1166]" fontSize="11" level="3" pageId="66" pageNumber="67" reason="3">
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<emphasis bold="true" box="[189,344,1140,1166]" pageId="66" pageNumber="67">
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<typeStatus box="[189,250,1140,1166]" pageId="66" pageNumber="67">Type</typeStatus>
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species
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</emphasis>
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</heading>
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</paragraph>
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<paragraph blockId="66.[189,1398,1187,1248]" pageId="66" pageNumber="67">
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<taxonomicName authority="Strand, 1934" authorityName="Strand" authorityYear="1934" box="[189,574,1187,1213]" class="Cephalopoda" family="Sinoceratidae" genus="Tyrioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Tarphycerida" pageId="66" pageNumber="67" phylum="Mollusca" rank="species" species="kjaerulfi">
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<emphasis box="[189,418,1187,1213]" italics="true" pageId="66" pageNumber="67">Tyrioceras kjaerulfi</emphasis>
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<bibRefCitation author="Strand T." box="[423,574,1187,1213]" pageId="66" pageNumber="67" pagination="1 - 117" refId="ref49308" refString="Strand T. 1934. The Upper Ordovician Cephalopods of the Oslo Area. Norsk Geologiske Tidsskrift 14: 1 - 117." type="journal article" year="1934">Strand, 1934</bibRefCitation>
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</taxonomicName>
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, Furuholmen, Asker District,
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<collectingCountry box="[916,1012,1187,1213]" name="Norway" pageId="66" pageNumber="67">Norway</collectingCountry>
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, Grimsøy Formation, late Katian, Late Ordovician; by original designation.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="66" pageNumber="67" type="diagnosis">
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<paragraph blockId="66.[189,431,1287,1314]" box="[189,431,1287,1314]" pageId="66" pageNumber="67">
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<heading bold="true" box="[189,431,1287,1314]" fontSize="11" level="3" pageId="66" pageNumber="67" reason="3">
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<emphasis bold="true" box="[189,431,1287,1314]" pageId="66" pageNumber="67">Emended diagnosis</emphasis>
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</heading>
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</paragraph>
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<paragraph blockId="66.[189,1399,1334,1466]" pageId="66" pageNumber="67">Large straight, compressed to depressed conch cross section; ornamented with broad bands or narrower raised transverse lines, which form broad and well marked, but not very deep ventral sinus with ventrolateral and dorso-lateral salients, siphuncle eccentric; septal necks orthochoanitic, relatively long, siphuncular segments tubular.</paragraph>
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</subSubSection>
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<subSubSection pageId="66" pageNumber="67" type="discussion">
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<paragraph blockId="66.[189,303,1505,1531]" box="[189,303,1505,1531]" pageId="66" pageNumber="67">
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<heading bold="true" box="[189,303,1505,1531]" fontSize="11" level="3" pageId="66" pageNumber="67" reason="3">
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<emphasis bold="true" box="[189,303,1505,1531]" pageId="66" pageNumber="67">Remarks</emphasis>
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</heading>
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</paragraph>
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<paragraph blockId="66.[189,1399,1551,1683]" pageId="66" pageNumber="67">
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The external characters of this genus where described in detail by
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<bibRefCitation author="Strand T." box="[1015,1181,1551,1578]" pageId="66" pageNumber="67" pagination="1 - 117" refId="ref49308" refString="Strand T. 1934. The Upper Ordovician Cephalopods of the Oslo Area. Norsk Geologiske Tidsskrift 14: 1 - 117." type="journal article" year="1934">Strand (1934)</bibRefCitation>
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and
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<bibRefCitation author="Frye M. W." box="[1247,1395,1552,1578]" pageId="66" pageNumber="67" pagination="1274 - 1292" refId="ref47763" refString="Frye M. W. 1982. Upper Ordovician (Harjuan) nautiloid cephalopods from the Boda Limestone of Sweden. Journal of Paleontology 56: 1274 - 1292." type="journal article" year="1982">Frye (1982)</bibRefCitation>
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. Originally the diagnosis of the genus was based only on the
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<typeStatus box="[872,923,1587,1613]" pageId="66" pageNumber="67">type</typeStatus>
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species. In order to include
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<taxonomicName authority="Frye, 1982" authorityName="Frye" authorityYear="1982" class="Cephalopoda" family="Sinoceratidae" genus="Tyrioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Tarphycerida" pageId="66" pageNumber="67" phylum="Mollusca" rank="species" species="warburgae">
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<emphasis box="[1242,1258,1588,1613]" italics="true" pageId="66" pageNumber="67">T</emphasis>
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.
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<emphasis box="[1271,1399,1587,1613]" italics="true" pageId="66" pageNumber="67">warburgae</emphasis>
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<bibRefCitation author="Frye M. W." box="[189,318,1622,1648]" pageId="66" pageNumber="67" pagination="1274 - 1292" refId="ref47763" refString="Frye M. W. 1982. Upper Ordovician (Harjuan) nautiloid cephalopods from the Boda Limestone of Sweden. Journal of Paleontology 56: 1274 - 1292." type="journal article" year="1982">Frye, 1982</bibRefCitation>
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</taxonomicName>
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, which is similar to the
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<typeStatus box="[596,647,1622,1648]" pageId="66" pageNumber="67">type</typeStatus>
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in many aspects, but differs in having a depressed, more rapidly expanding conch, the diagnosis is emended.
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</paragraph>
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<paragraph blockId="66.[189,1399,1722,1960]" pageId="66" pageNumber="67">
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The placement of
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<taxonomicName authorityName="Strand" authorityYear="1934" box="[406,531,1723,1748]" class="Cephalopoda" family="Sinoceratidae" genus="Tyrioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Tarphycerida" pageId="66" pageNumber="67" phylum="Mollusca" rank="genus">
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<emphasis box="[406,531,1723,1748]" italics="true" pageId="66" pageNumber="67">Tyrioceras</emphasis>
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</taxonomicName>
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within the
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<taxonomicName authorityName="Dzik" authorityYear="1984" box="[668,772,1722,1748]" class="Cephalopoda" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lituitina" pageId="66" pageNumber="67" phylum="Mollusca" rank="order">Lituitina</taxonomicName>
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, was formerly based on the characteristically curved ornamentation alone, and therefore was somewhat questionable. The details of the internal characters, now known from
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<taxonomicName authorityName="Frye" authorityYear="1982" box="[420,589,1793,1819]" class="Cephalopoda" family="Sinoceratidae" genus="Tyrioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Tarphycerida" pageId="66" pageNumber="67" phylum="Mollusca" rank="species" species="warburgae">
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<emphasis box="[420,436,1794,1819]" italics="true" pageId="66" pageNumber="67">T</emphasis>
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.
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<emphasis box="[458,589,1793,1819]" italics="true" pageId="66" pageNumber="67">warburgae</emphasis>
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</taxonomicName>
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<emphasis box="[588,592,1793,1819]" italics="true" pageId="66" pageNumber="67">,</emphasis>
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support these earlier assumptions. The shape and extent of the cameral deposits in
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<taxonomicName authorityName="Frye" authorityYear="1982" box="[433,595,1828,1855]" class="Cephalopoda" family="Sinoceratidae" genus="Tyrioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Tarphycerida" pageId="66" pageNumber="67" phylum="Mollusca" rank="species" species="warburgae">
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<emphasis box="[433,449,1829,1854]" italics="true" pageId="66" pageNumber="67">T</emphasis>
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.
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<emphasis box="[467,595,1828,1854]" italics="true" pageId="66" pageNumber="67">warburgae</emphasis>
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</taxonomicName>
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are very similar to those of other lituitins. A syn-vivo dissolution of the connecting ring, which is typical of lituitins, is indicated by epichoanitic deposits (
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<figureCitation box="[1246,1339,1863,1889]" captionStart="Fig" captionStartId="68.[190,233,1830,1856]" captionTargetBox="[190,1401,784,1787]" captionTargetId="figure@68.[190,1401,784,1787]" captionTargetPageId="68" captionText="Fig. 29. Polished median sections of Tyrioceras Strand, 1934, Boda Limestone. A. Tyrioceras cf. kjaerulfi Strand, 1934, PMU 26897, Kallholn, detail of septal neck with massive endocameral and epichoanitic deposits and long orthochoanitic septal necks. B. Tyrioceras warburgae Frye, 1982, PMU 26900, Kallholn, detail of septal neck with epichoanitic deposits. C. Same specimen as in A, total fragment. Scale bars: A-B = 5 mm; C = 10 mm." figureDoi="http://doi.org/10.5281/zenodo.3814285" httpUri="https://zenodo.org/record/3814285/files/figure.png" pageId="66" pageNumber="67">Figs 29</figureCitation>
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,
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<figureCitation box="[1352,1385,1863,1889]" captionStart="Fig" captionStartId="69.[189,232,1964,1990]" captionTargetBox="[422,1167,701,1914]" captionTargetId="graphics@69.[422,1167,701,1915]" captionTargetPageId="69" captionText="Fig. 30. Reconstruction of median section of Tyrioceras cf. kjaerulfi Strand, 1934, PMU 26897, Boda Limestone, Kallholn. Black = outer shell and septa; grey = cameral deposits." figureDoi="http://doi.org/10.5281/zenodo.3814287" httpUri="https://zenodo.org/record/3814287/files/figure.png" pageId="66" pageNumber="67">30</figureCitation>
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). Additionally, voluminous epi-, hyposeptal and mural deposits, and relatively long septal necks are very characteristic for
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<taxonomicName authorityName="Dzik" authorityYear="1984" box="[394,499,1934,1960]" class="Cephalopoda" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lituitina" pageId="66" pageNumber="67" phylum="Mollusca" rank="order">Lituitina</taxonomicName>
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. The assignment within the family of
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<taxonomicName authorityName="Shimizu & Obata" authorityYear="1935" box="[943,1103,1934,1960]" class="Cephalopoda" family="Sinoceratidae" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="66" pageNumber="67" phylum="Mollusca" rank="family">Sinoceratidae</taxonomicName>
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is after
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<bibRefCitation author="Dzik J." box="[1198,1344,1934,1960]" pageId="66" pageNumber="67" refId="ref47068" refString="Dzik J. 1984. Phylogeny of the Nautiloidea. Palaeontologia Polonica, Vol. 45, 203 pp." type="book" year="1984">Dzik (1984)</bibRefCitation>
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.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |