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<document id="F2998F3DB8219E25643A9FAC938F6816" ID-CLB-Dataset="22319" ID-DOI="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" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1588881240389" checkinUser="carolina" docAuthor="Kröger, Björn" docDate="2013" docId="AD4D9054CD236A2EF0714621FCC0FE5D" docLanguage="en" docName="ejt-2013-41.pdf.imf" docOrigin="European Journal of Taxonomy 41" docStyle="DocumentStyle:EF2B578F1D15862ADE45B0C07C620911.14:EJT.2018-.journal_article.type1" docStyleId="EF2B578F1D15862ADE45B0C07C620911" docStyleName="EJT.2018-.journal_article.type1" docStyleVersion="14" docTitle="Discoceras antiquissimum" docType="treatment" docVersion="9" lastPageNumber="73" masterDocId="5174E82CCD646A66F260472AFFA5FFBD" masterDocTitle="The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden" masterLastPageNumber="110" masterPageNumber="1" pageNumber="72" updateTime="1698838944441" 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:title id="E1A3857C3CE631FC219C0403496191E4">The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden</mods:title>
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<treatment id="AD4D9054CD236A2EF0714621FCC0FE5D" ID-DOI="http://doi.org/10.5281/zenodo.3815116" ID-GBIF-Taxon="163977272" ID-Zenodo-Dep="3815116" LSID="urn:lsid:plazi:treatment:AD4D9054CD236A2EF0714621FCC0FE5D" httpUri="http://treatment.plazi.org/id/AD4D9054CD236A2EF0714621FCC0FE5D" lastPageId="72" lastPageNumber="73" pageId="71" pageNumber="72">
<subSubSection id="6DFE72C9CD236A21F0714621FB87FE98" box="[529,1058,267,293]" pageId="71" pageNumber="72" type="nomenclature">
<paragraph id="255B2142CD236A21F0714621FB87FE98" blockId="71.[529,1058,267,329]" box="[529,1058,267,293]" pageId="71" pageNumber="72">
<heading id="7E13962ECD236A21F0714621FB87FE98" box="[529,1058,267,293]" centered="true" fontSize="11" level="2" pageId="71" pageNumber="72" reason="2">
<taxonomicName id="E2E45AC1CD236A21F0714621FB87FE98" authority="(Eichwald, 1842)" baseAuthorityName="Eichwald" baseAuthorityYear="1842" box="[529,1058,267,293]" class="Cephalopoda" family="Trocholitidae" genus="Discoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Tarphycerida" pageId="71" pageNumber="72" phylum="Mollusca" rank="species" species="antiquissimum">
<emphasis id="1790FD50CD236A21F0714621FCEAFE98" bold="true" box="[529,847,267,293]" italics="true" pageId="71" pageNumber="72">Discoceras antiquissimum</emphasis>
(
<bibRefCitation id="41755CB3CD236A21F13F4621FBBFFE98" author="Eichwald E. de" box="[863,1050,267,293]" pageId="71" pageNumber="72" refId="ref47193" refString="Eichwald E. de. 1842. Die Urwelt Russlands durch Abbildungen erlaeutert. 2. Heft. Neuer Beitrag zur Geognosie Esthlands und Finlands. Akademie der Wissenschaften, St. Petersburg." type="book" year="1842">Eichwald, 1842</bibRefCitation>
)
</taxonomicName>
</heading>
</paragraph>
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<subSubSection id="6DFE72C9CD236A21F0864604FCE8FEF4" box="[742,845,302,329]" pageId="71" pageNumber="72" type="description">
<paragraph id="255B2142CD236A21F0864604FCE8FEF4" blockId="71.[529,1058,267,329]" box="[742,845,302,329]" pageId="71" pageNumber="72">
<figureCitation id="BDDF3DC7CD236A21F0864604FCE8FEF4" box="[742,845,302,329]" captionStart="Fig" captionStartId="72.[189,232,1929,1955]" captionTargetBox="[219,1373,1236,1884]" captionTargetId="figure@72.[219,1373,1236,1907]" captionTargetPageId="72" captionText="Fig. 31. Discoceratids of the Boda Limestone of Kallholn. A. Discoceras roemeri Strand, 1934, PMU 26903. B. Discoceras antiquissimum (Eichwald, 1842), NRM-PZ Mo 8745. Scale bar = 10 mm for both figures." figureDoi="http://doi.org/10.5281/zenodo.3814289" httpUri="https://zenodo.org/record/3814289/files/figure.png" pageId="71" pageNumber="72">Fig. 31B</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="6DFE72C9CD236A21F2DD465AFC1AFCB5" pageId="71" pageNumber="72" type="reference_group">
<paragraph id="255B2142CD236A21F2DD465AFC2EFE37" blockId="71.[189,907,368,430]" box="[189,907,368,394]" pageId="71" pageNumber="72">
<treatmentCitationGroup id="05F4066CCD236A21F2DD465AFC2EFE37" box="[189,907,368,394]" pageId="71" pageNumber="72">
<treatmentCitation id="A4450753CD236A21F2DD465AFD1FFE37" author="Eichwald E. de" box="[189,698,368,394]" page="33" pageId="71" pageNumber="72" year="1842">
<taxonomicName id="E2E45AC1CD236A21F2DD465AFD1FFE37" authority="Eichwald, 1842: 33" authorityName="Eichwald" authorityPageNumber="33" authorityYear="1842" box="[189,698,368,394]" class="Mammalia" family="Delphinidae" genus="Clymenia" higherTaxonomySource="CoL" kingdom="Animalia" order="Cetacea" pageId="71" pageNumber="72" phylum="Chordata" rank="species" species="antiquissima">
<emphasis id="1790FD50CD236A21F2DD465AFE6EFE37" box="[189,459,368,394]" italics="true" pageId="71" pageNumber="72">Clymenia antiquissima</emphasis>
<bibRefCitation id="41755CB3CD236A21F3B2465AFD1FFE37" author="Eichwald E. de" box="[466,698,368,394]" pageId="71" pageNumber="72" refId="ref47193" refString="Eichwald E. de. 1842. Die Urwelt Russlands durch Abbildungen erlaeutert. 2. Heft. Neuer Beitrag zur Geognosie Esthlands und Finlands. Akademie der Wissenschaften, St. Petersburg." type="book" year="1842">Eichwald, 1842: 33</bibRefCitation>
</taxonomicName>
</treatmentCitation>
, pl. 3, figs 16, 17.
</treatmentCitationGroup>
</paragraph>
<paragraph id="255B2142CD236A21F2DD46BEFCBEFE10" blockId="71.[189,907,368,430]" box="[189,795,403,430]" pageId="71" pageNumber="72">
<treatmentCitationGroup id="05F4066CCD236A21F2DD46BEFCBEFE10" box="[189,795,403,430]" pageId="71" pageNumber="72">
<treatmentCitation id="A4450753CD236A21F2DD46BEFD2CFE13" author="Lossen C." box="[189,649,403,430]" page="25" pageId="71" pageNumber="72" year="1860">
<taxonomicName id="E2E45AC1CD236A21F2DD46BEFD2CFE13" authority="Lossen, 1860: 25" authorityName="Lossen" authorityPageNumber="25" authorityYear="1860" box="[189,649,403,430]" class="Cephalopoda" family="Lituitidae" genus="Lituites" higherTaxonomySource="GBIF" kingdom="Animalia" order="Tarphycerida" pageId="71" pageNumber="72" phylum="Mollusca" rank="species" species="trapezoidalis">
<emphasis id="1790FD50CD236A21F2DD46BEFE10FE10" box="[189,437,403,429]" italics="true" pageId="71" pageNumber="72">Lituites trapezoidalis</emphasis>
<bibRefCitation id="41755CB3CD236A21F3DD46BEFD2CFE13" author="Lossen C." box="[445,649,403,430]" pageId="71" pageNumber="72" pagination="15 - 28" refId="ref48549" refString="Lossen C. 1860. Uber einige Lituiten. Zeitschrift der deutschen geologischen Gesellschaft 12: 15 - 28." type="journal article" year="1860">Lossen, 1860: 25</bibRefCitation>
</taxonomicName>
</treatmentCitation>
, pl. 1, fig. 2.
</treatmentCitationGroup>
</paragraph>
<paragraph id="255B2142CD236A21F2DD46FFFC28FE52" blockId="71.[189,1399,468,777]" box="[189,909,468,495]" pageId="71" pageNumber="72">
<treatmentCitationGroup id="05F4066CCD236A21F2DD46FFFC28FE52" box="[189,909,468,495]" pageId="71" pageNumber="72">
<taxonomicName id="E2E45AC1CD236A21F2DD46FFFE6EFE53" authorityName="Eichwald" authorityYear="1842" box="[189,459,469,495]" class="Mammalia" family="Delphinidae" genus="Clymenia" higherTaxonomySource="CoL" kingdom="Animalia" order="Cetacea" pageId="71" pageNumber="72" phylum="Chordata" rank="species" species="antiquissima">
<emphasis id="1790FD50CD236A21F2DD46FFFE6EFE53" box="[189,459,469,495]" italics="true" pageId="71" pageNumber="72">Clymenia antiquissima</emphasis>
</taxonomicName>
–
<treatmentCitation id="A4450753CD236A21F38846FFFD60FE52" author="Eichwald E. von" box="[488,709,468,495]" page="15" pageId="71" pageNumber="72" year="1840">
<bibRefCitation id="41755CB3CD236A21F38846FFFD60FE52" author="Eichwald E. von" box="[488,709,468,495]" pageId="71" pageNumber="72" pagination="1 - 327" refId="ref47163" refString="Eichwald E. von. 1840. Uber das silurische Schichtensystem in Esthland. Zeitschrift fur Naturwissenschaften und Heilkunde der Akademie St. Petersburg 8: 1 - 327." type="journal article" year="1840">Eichwald 1840: 15</bibRefCitation>
</treatmentCitation>
(
<emphasis id="1790FD50CD236A21F0B746FFFCD9FE52" box="[727,892,469,495]" italics="true" pageId="71" pageNumber="72">nomen nudum</emphasis>
).
</treatmentCitationGroup>
</paragraph>
<paragraph id="255B2142CD236A21F2DD46D3FBA1FDAF" blockId="71.[189,1399,468,777]" box="[189,1028,504,530]" pageId="71" pageNumber="72">
<treatmentCitationGroup id="05F4066CCD236A21F2DD46D3FBA1FDAF" box="[189,1028,504,530]" pageId="71" pageNumber="72">
<taxonomicName id="E2E45AC1CD236A21F2DD46D3FDFEFDAF" authorityName="Roemer" authorityYear="1861" box="[189,603,504,530]" class="Cephalopoda" family="Lituitidae" genus="Lituites" higherTaxonomySource="GBIF" kingdom="Animalia" order="Tarphycerida" pageId="71" pageNumber="72" phylum="Mollusca" rank="species" species="antiquissimus" subGenus="Trocholites">
<emphasis id="1790FD50CD236A21F2DD46D3FEB0FDAF" box="[189,277,505,530]" italics="true" pageId="71" pageNumber="72">Lituites</emphasis>
(
<emphasis id="1790FD50CD236A21F34646D2FE0CFDAF" box="[294,425,504,530]" italics="true" pageId="71" pageNumber="72">Trocholites</emphasis>
)
<emphasis id="1790FD50CD236A21F3DA46D3FDFEFDAF" box="[442,603,505,530]" italics="true" pageId="71" pageNumber="72">antiquissimus</emphasis>
</taxonomicName>
–
<treatmentCitation id="A4450753CD236A21F01946D2FCE9FDAF" author="Schmidt F." box="[633,844,504,530]" page="62" pageId="71" pageNumber="72" year="1861">
<bibRefCitation id="41755CB3CD236A21F01946D2FCE9FDAF" author="Schmidt F." box="[633,844,504,530]" pageId="71" pageNumber="72" pagination="465 - 474" refId="ref49232" refString="Schmidt F. 1861. Nachtrage und Berichtigungen zu den Untersuchungen uber die Silurische Formation von Ehstland, Nord-Livland und Osel. Archiv fur die Naturkunde Liv-, Ehst- und Kurlands, 1. Serie (Mineralogische Wissenschaften, nebst Chemie, Physik und Erdbeschreibung) 2: 465 - 474." type="journal article" year="1861">Schmidt 1861: 62</bibRefCitation>
</treatmentCitation>
, pl. 6, fig. 2a-g.
</treatmentCitationGroup>
</paragraph>
<paragraph id="255B2142CD236A21F2DD4536FA9CFDE5" blockId="71.[189,1399,468,777]" pageId="71" pageNumber="72">
<treatmentCitationGroup id="05F4066CCD236A21F2DD4536FA9CFDE5" pageId="71" pageNumber="72">
<taxonomicName id="E2E45AC1CD236A21F2DD4536FE65FD88" authorityName="Roemer" authorityYear="1861" box="[189,448,540,565]" class="Cephalopoda" family="Lituitidae" genus="Lituites" higherTaxonomySource="GBIF" kingdom="Animalia" order="Tarphycerida" pageId="71" pageNumber="72" phylum="Mollusca" rank="species" species="antiquissimus">
<emphasis id="1790FD50CD236A21F2DD4536FE65FD88" box="[189,448,540,565]" italics="true" pageId="71" pageNumber="72">Lituites antiquissimus</emphasis>
</taxonomicName>
–
<treatmentCitation id="A4450753CD236A21F3834536FD12FD88" author="Roemer C. F." box="[483,695,539,566]" page="62" pageId="71" pageNumber="72" year="1861">
<bibRefCitation id="41755CB3CD236A21F3834536FD12FD88" author="Roemer C. F." box="[483,695,539,566]" pageId="71" pageNumber="72" refId="ref49074" refString="Roemer C. F. 1861. Die fossile Fauna der silurischen Diluvial-Geschiebe von Sadewitz bei Oels in Nieder-Schlsien. Breslau." type="book" year="1861">Roemer 1861: 62</bibRefCitation>
</treatmentCitation>
, pl. 6, fig. 2f-g (
<emphasis id="1790FD50CD236A21F1E34536FC0AFD88" box="[899,943,540,565]" italics="true" pageId="71" pageNumber="72">non</emphasis>
pl. 6, figs 2a-e =
<taxonomicName id="E2E45AC1CD236A21F6ED4536FEF0FDE5" authority="Strand, 1934" authorityName="Strand" authorityYear="1934" class="Cephalopoda" family="Trocholitidae" genus="Discoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Tarphycerida" pageId="71" pageNumber="72" phylum="Mollusca" rank="species" species="roemeri">
<emphasis id="1790FD50CD236A21F6ED4536FAD2FD88" box="[1165,1399,540,565]" italics="true" pageId="71" pageNumber="72">Discoceras roemeri</emphasis>
<bibRefCitation id="41755CB3CD236A21F2DD4514FEF0FDE5" author="Strand T." box="[189,341,574,600]" pageId="71" pageNumber="72" 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>
</taxonomicName>
, see below). ―
<treatmentCitation id="A4450753CD236A21F0734515FD45FDE4" author="Karsten G." box="[531,736,574,601]" page="53" pageId="71" pageNumber="72" year="1869">
<bibRefCitation id="41755CB3CD236A21F0734515FD45FDE4" author="Karsten G." box="[531,736,574,601]" pageId="71" pageNumber="72" pagination="1 - 85" refId="ref48217" refString="Karsten G. 1869. Die Versteinerungen des Uebergangsgebirges in den Gerollen der Herzogthumer Schleswig und Holstein. Beitrage zur Landeskunde der Herzogthumer Schleswig und Holstein, Reihe 1, 1: 1 - 85." type="journal article" year="1869">Karsten 1869: 53</bibRefCitation>
</treatmentCitation>
, pl.19, fig. 7a-c. ―
<treatmentCitation id="A4450753CD236A21F1A94515FB3DFDE5" author="Roemer C. F." box="[969,1176,574,601]" page="68" pageId="71" pageNumber="72" year="1885">
<bibRefCitation id="41755CB3CD236A21F1A94515FB3DFDE5" author="Roemer C. F." box="[969,1176,574,601]" pageId="71" pageNumber="72" pagination="248 - 420" refId="ref49096" refString="Roemer C. F. 1885. Lethaea erratica oder Aufzahlung und Beschreibung der in der norddeutschen Ebene vorkommenden Diluvialgeschiebe nordischer Sedimentar-Gesteine. Palaontologische Abhandlungen 2: 248 - 420." type="journal article" year="1885">Roemer 1885: 68</bibRefCitation>
</treatmentCitation>
, pl. 4, fig. 12.
</treatmentCitationGroup>
</paragraph>
<paragraph id="255B2142CD236A21F2DD4548FE6AFD58" blockId="71.[189,1399,468,777]" pageId="71" pageNumber="72">
<treatmentCitationGroup id="05F4066CCD236A21F2DD4548FE6AFD58" pageId="71" pageNumber="72">
<taxonomicName id="E2E45AC1CD236A21F2DD4548FE56FDC6" baseAuthorityName="Eichwald" baseAuthorityYear="1842" box="[189,499,610,635]" class="Cephalopoda" family="Trocholitidae" genus="Discoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Tarphycerida" pageId="71" pageNumber="72" phylum="Mollusca" rank="species" species="antiquissimum">
<emphasis id="1790FD50CD236A21F2DD4548FE56FDC6" box="[189,499,610,635]" italics="true" pageId="71" pageNumber="72">Discoceras antiquissimum</emphasis>
</taxonomicName>
–
<treatmentCitation id="A4450753CD236A21F0714548FD72FDC1" author="Foerste A. F." box="[529,727,609,636]" page="17" pageId="71" pageNumber="72" year="1925">
<bibRefCitation id="41755CB3CD236A21F0714548FD72FDC1" author="Foerste A. F." box="[529,727,609,636]" pageId="71" pageNumber="72" pagination="1 - 69" refId="ref47626" refString="Foerste A. F. 1925. Notes on Cephalopod genera, chiefly coiled Silurian forms. Journal of the Scientific Laboratories of Denison University 21: 1 - 69." type="journal article" year="1925">Foerste 1925: 17</bibRefCitation>
</treatmentCitation>
, 58, pl. 18, fig. 1. ―
<treatmentCitation id="A4450753CD236A21F1B1454BFB2AFDC1" author="Strand T." box="[977,1167,609,636]" page="32" pageId="71" pageNumber="72" year="1934">
<bibRefCitation id="41755CB3CD236A21F1B1454BFB2AFDC1" author="Strand T." box="[977,1167,609,636]" pageId="71" pageNumber="72" 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: 32</bibRefCitation>
</treatmentCitation>
, pl. 2, figs 4, 11, pl. 4, figs 2, 3, pl. 13, fig. 9. ―
<treatmentCitation id="A4450753CD236A21F06A45AFFD6CFD23" box="[522,713,644,671]" pageId="71" pageNumber="72">
<bibRefCitation id="41755CB3CD236A21F06A45AFFD6CFD23" author="Thorslund P." box="[522,713,644,671]" pageId="71" pageNumber="72" pagination="1 - 57" refId="ref49847" refString="Thorslund P. 1936. Siljanomradets brannkalkstenar och kalkindustri. Sveriges Geologiska Undersokning, Afhandlingar och Uppsater, C 398: 1 - 57." type="journal article" year="1936">Thorslund 1936</bibRefCitation>
</treatmentCitation>
: pl. 2, fig. 11. ―
<treatmentCitation id="A4450753CD236A21F1F745AFFB20FD22" author="Balashov E. G." box="[919,1157,644,671]" page="265" pageId="71" pageNumber="72" year="1953">
<bibRefCitation id="41755CB3CD236A21F1F745AFFB20FD22" author="Balashov E. G." box="[919,1157,644,671]" pageId="71" pageNumber="72" pagination="217 - 268" refId="ref46457" refString="Balashov E. G. 1953. Svernutye i polivernutye nautiloidei ordovika pribaltiki. Trudy Vsesoyuznogo Neftyanogo Nauchno-Issledovatel'skogo Geologo-Razvednoknogo Instituta 78: 217 - 268." type="journal article" year="1953">Balashov 1953: 265</bibRefCitation>
</treatmentCitation>
, pl. 12, fig. 1a, b. ―
<treatmentCitation id="A4450753CD236A21F2DD4582FED0FD7F" author="Sweet W. C." box="[189,373,680,707]" page="99" pageId="71" pageNumber="72" year="1958">
<bibRefCitation id="41755CB3CD236A21F2DD4582FED0FD7F" author="Sweet W. C." box="[189,373,680,707]" pageId="71" pageNumber="72" pagination="1 - 178" refId="ref49551" refString="Sweet W. C. 1958. The Middle Ordovician of the Oslo region of Norway. 10. Nautiloid cephalopods. Norsk Geologiske Tidsskrift 31: 1 - 178." type="journal article" year="1958">Sweet 1958: 99</bibRefCitation>
</treatmentCitation>
, text-fig.
<specimenCount id="33E2EACBCD236A21F3844582FDB2FD7F" box="[484,535,680,706]" pageId="71" pageNumber="72" type="generic">13q.</specimenCount>
―
<treatmentCitation id="A4450753CD236A21F0224582FCFCFD7F" box="[578,857,680,706]" pageId="71" pageNumber="72">
<bibRefCitation id="41755CB3CD236A21F0224582FCFCFD7F" author="Neben W. &amp; Krueger H. H." box="[578,857,680,706]" pageId="71" pageNumber="72" pagination="195 - 198" refId="ref48758" refString="Neben W. &amp; Krueger H. H. 1973. Fossilien ordovizischer und silurischer Geschiebe. Staringia 2: 51 - 109. Niko S. 2008. Isorthoceras wahlenberg i, a new Late Ordovician cephalopod from the Boda Limestone of Dalarna, Sweden. Paleontological Research 12: 195 - 198. http: // dx. doi. org / 10.2517 / 1342 - 8144 (2008) 12 [195: IWANLO] 2.0. CO; 2" type="journal article" year="1973">Neben &amp; Krueger 1973</bibRefCitation>
</treatmentCitation>
: pl. 77, figs 24, 25. ―
<treatmentCitation id="A4450753CD236A21F6014582FAAEFD7F" author="Dzik J." box="[1121,1291,680,706]" page="42" pageId="71" pageNumber="72" year="1984">
<bibRefCitation id="41755CB3CD236A21F6014582FAAEFD7F" author="Dzik J." box="[1121,1291,680,706]" pageId="71" pageNumber="72" refId="ref47068" refString="Dzik J. 1984. Phylogeny of the Nautiloidea. Palaeontologia Polonica, Vol. 45, 203 pp." type="book" year="1984">Dzik 1984: 42</bibRefCitation>
</treatmentCitation>
, text-figs 9c-d, 12.39, pl.7, fig. 1.
</treatmentCitationGroup>
</paragraph>
<paragraph id="255B2142CD236A21F2DD45C5FC1AFCB5" blockId="71.[189,1399,468,777]" box="[189,959,750,777]" pageId="71" pageNumber="72">
<treatmentCitationGroup id="05F4066CCD236A21F2DD45C5FC1AFCB5" box="[189,959,750,777]" pageId="71" pageNumber="72">
<taxonomicName id="E2E45AC1CD236A21F2DD45C5FE7BFCB5" baseAuthorityName="Eichwald" baseAuthorityYear="1842" box="[189,478,751,776]" class="Cephalopoda" family="Trocholitidae" genus="Discoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Tarphycerida" pageId="71" pageNumber="72" phylum="Mollusca" rank="species" species="antiquissima">
<emphasis id="1790FD50CD236A21F2DD45C5FE7BFCB5" box="[189,478,751,776]" italics="true" pageId="71" pageNumber="72">Discoceras antiquissima</emphasis>
</taxonomicName>
–
<treatmentCitation id="A4450753CD236A21F39C45C4FCBBFCB4" author="Hucke K. &amp; Voigt E." box="[508,798,750,777]" page="58" pageId="71" pageNumber="72" year="1967">
<bibRefCitation id="41755CB3CD236A21F39C45C4FCBBFCB4" author="Hucke K. &amp; Voigt E." box="[508,798,750,777]" pageId="71" pageNumber="72" refId="ref48146" refString="Hucke K. &amp; Voigt E. 1967. Einfuhrung in die Geschiebeforschung (Sedimentargeschiebe). Nederlandse Geologische Vereniging, Oldenzaal." type="book" year="1967">Hucke &amp; Voigt 1967: 58</bibRefCitation>
</treatmentCitation>
, pl. 15, fig. 1.
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="6DFE72C9CD236A21F2DD4405FCC4FB95" pageId="71" pageNumber="72" type="diagnosis">
<paragraph id="255B2142CD236A21F2DD4405FE93FCF4" blockId="71.[189,310,815,841]" box="[189,310,815,841]" pageId="71" pageNumber="72">
<heading id="7E13962ECD236A21F2DD4405FE93FCF4" bold="true" box="[189,310,815,841]" fontSize="11" level="3" pageId="71" pageNumber="72" reason="3">
<emphasis id="1790FD50CD236A21F2DD4405FE93FCF4" bold="true" box="[189,310,815,841]" pageId="71" pageNumber="72">Diagnosis</emphasis>
</heading>
</paragraph>
<paragraph id="255B2142CD236A21F2DD4475FCC4FB95" blockId="71.[189,1399,862,1064]" pageId="71" pageNumber="72">
<taxonomicName id="E2E45AC1CD236A21F2DD4475FEE4FCC5" authorityName="Barrande" authorityYear="1867" box="[189,321,863,888]" class="Cephalopoda" family="Trocholitidae" genus="Discoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Tarphycerida" pageId="71" pageNumber="72" phylum="Mollusca" rank="genus">
<emphasis id="1790FD50CD236A21F2DD4475FEE4FCC5" box="[189,321,863,888]" italics="true" pageId="71" pageNumber="72">Discoceras</emphasis>
</taxonomicName>
with adult sizes more than
<quantity id="E21C8CA7CD236A21F0E54474FD4CFCC4" box="[645,745,862,889]" metricMagnitude="-1" metricUnit="m" metricValue="1.3" pageId="71" pageNumber="72" unit="mm" value="130.0">130 mm</quantity>
, WER of ca. 1.9 decreasing with increasing conch size; whorl cross section slightly depressed with WWI 1.2–1.5 becoming less depressed in maturity, broadly reniform in juvenile stages, rounded trapezoidal with venter wider than dorsum in later groth stages; free mature body chamber with constriction near aperture; ornamented with prominent ribs, one to two ribs per distance between two septa; siphuncle close to dorsal conch margin, ca. 0.15–0.17 of whorl height, septal necks orthochoanitic. (Adopted from
<bibRefCitation id="41755CB3CD236A21F0A14324FCF1FB95" author="Strand T." box="[705,852,1038,1064]" pageId="71" pageNumber="72" 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>
.)
</paragraph>
</subSubSection>
<subSubSection id="6DFE72C9CD236A21F2DD437AFED5FB06" pageId="71" pageNumber="72" type="distribution">
<paragraph id="255B2142CD236A21F2DD437AFE5EFBD4" blockId="71.[189,507,1103,1130]" box="[189,507,1103,1130]" pageId="71" pageNumber="72">
<heading id="7E13962ECD236A21F2DD437AFE5EFBD4" bold="true" box="[189,507,1103,1130]" fontSize="11" level="3" pageId="71" pageNumber="72" reason="3">
<emphasis id="1790FD50CD236A21F2DD437AFE5EFBD4" bold="true" box="[189,507,1103,1130]" pageId="71" pageNumber="72">
<typeStatus id="FA5F9FE0CD236A21F2DD437AFF5FFBD7" box="[189,250,1104,1130]" pageId="71" pageNumber="72">Type</typeStatus>
locality and horizon
</emphasis>
</heading>
</paragraph>
<paragraph id="255B2142CD236A21F2DD4354FED5FB06" blockId="71.[189,1398,1150,1211]" pageId="71" pageNumber="72">
Kärdla,
<collectingRegion id="E720EFA0CD236A21F3434354FE2DFB25" box="[291,392,1150,1176]" country="Estonia" name="Hiiumaa" pageId="71" pageNumber="72">Hiiumaa</collectingRegion>
Island,
<collectingCountry id="5DF361D2CD236A21F3944354FDEAFB25" box="[500,591,1150,1176]" name="Estonia" pageId="71" pageNumber="72">Estonia</collectingCountry>
, presumably Vormsi/Pirgu Regional Stage (“Lyckholm stage” of
<bibRefCitation id="41755CB3CD236A21F2DD438BFEC6FB06" author="Teichert C." box="[189,355,1185,1211]" pageId="71" pageNumber="72" pagination="264 - 312" refId="ref49750" refString="Teichert C. 1930. Die Cephalopoden-Fauna der Lyckholm-Stufe des Ostbaltikums. Palaontologische Zeitschrift 12: 264 - 312." type="journal article" year="1930">Teichert 1930</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="6DFE72C9CD236A21F2DD43C9FAA0FA96" box="[189,1285,1251,1324]" pageId="71" pageNumber="72" type="materials_examined">
<paragraph id="255B2142CD236A21F2DD43C9FE8FFB40" blockId="71.[189,298,1251,1277]" box="[189,298,1251,1277]" pageId="71" pageNumber="72">
<heading id="7E13962ECD236A21F2DD43C9FE8FFB40" bold="true" box="[189,298,1251,1277]" fontSize="11" level="3" pageId="71" pageNumber="72" reason="3">
<emphasis id="1790FD50CD236A21F2DD43C9FE8FFB40" bold="true" box="[189,298,1251,1277]" pageId="71" pageNumber="72">Material</emphasis>
</heading>
</paragraph>
<paragraph id="255B2142CD236A21F2DD4238FAA0FA96" blockId="71.[189,1285,1297,1324]" box="[189,1285,1297,1324]" pageId="71" pageNumber="72">
Two specimens,
<collectionCode id="43F5B987CD236A21F3E14238FE64FA91" box="[385,449,1298,1324]" country="Sweden" httpUri="http://grbio.org/cool/32ji-dbbk" name="Paleontological Museum of Uppsala" pageId="71" pageNumber="72">PMU</collectionCode>
24739 and NRM-PZ Mo 8745, Kallholn, late Katian, Late Ordovician.
</paragraph>
</subSubSection>
<subSubSection id="6DFE72C9CD236A21F2DD4279FB8DF92F" pageId="71" pageNumber="72" type="description">
<paragraph id="255B2142CD236A21F2DD4279FEEBFAD0" blockId="71.[189,334,1363,1389]" box="[189,334,1363,1389]" pageId="71" pageNumber="72">
<heading id="7E13962ECD236A21F2DD4279FEEBFAD0" bold="true" box="[189,334,1363,1389]" fontSize="11" level="3" pageId="71" pageNumber="72" reason="3">
<emphasis id="1790FD50CD236A21F2DD4279FEEBFAD0" bold="true" box="[189,334,1363,1389]" pageId="71" pageNumber="72">Description</emphasis>
</heading>
</paragraph>
<paragraph id="255B2142CD236A21F2DD42ABFB8DF92F" blockId="71.[189,1399,1409,1682]" pageId="71" pageNumber="72">
This species was described in detail by
<bibRefCitation id="41755CB3CD236A21F0CE42ABFCFDFA26" author="Strand T." box="[686,856,1409,1435]" pageId="71" pageNumber="72" 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>
. The specimen from the Boda Limestone is documented in order to add detail regarding the morphological variability of the species. The specimen with a maximum conch diameter of
<quantity id="E21C8CA7CD236A21F0E242E2FD7CFA5F" box="[642,729,1480,1506]" metricMagnitude="-2" metricUnit="m" metricValue="9.2" pageId="71" pageNumber="72" unit="mm" value="92.0">92 mm</quantity>
is a fragment with three whorls, lacking the free part representing the mature stage. The maximum whorl height is ca.
<quantity id="E21C8CA7CD236A21F1CC42C1FC5BF9B8" box="[940,1022,1515,1541]" metricMagnitude="-2" metricUnit="m" metricValue="2.2" pageId="71" pageNumber="72" unit="mm" value="22.0">22 mm</quantity>
and the maximum width
<quantity id="E21C8CA7CD236A21F74542C1FAD2F9B8" box="[1317,1399,1515,1542]" metricMagnitude="-2" metricUnit="m" metricValue="2.5" pageId="71" pageNumber="72" unit="mm" value="25.0">25 mm</quantity>
(WWI 1.14), the whorl expands with a WER of 1.89. The conch is prominently annulated, with ca. 30 sharply crested ribs per 360° revolution. The ribs slope slightly adapically toward the venter and form an angular v-shaped sinus on the venter. In addition to the conch annulation, the shell is ornamented with fine, irregularly spaced, transverse growth lines parallel to the annulations.
</paragraph>
</subSubSection>
<subSubSection id="6DFE72C9CD236A21F2DD4193FB7FF828" pageId="71" pageNumber="72" type="discussion">
<paragraph id="255B2142CD236A21F2DD4193FE8AF96E" blockId="71.[189,303,1721,1747]" box="[189,303,1721,1747]" pageId="71" pageNumber="72">
<heading id="7E13962ECD236A21F2DD4193FE8AF96E" bold="true" box="[189,303,1721,1747]" fontSize="11" level="3" pageId="71" pageNumber="72" reason="3">
<emphasis id="1790FD50CD236A21F2DD4193FE8AF96E" bold="true" box="[189,303,1721,1747]" pageId="71" pageNumber="72">Remarks</emphasis>
</heading>
</paragraph>
<paragraph id="255B2142CD236A21F2DD41C2FEE4F898" blockId="71.[189,1398,1767,1829]" pageId="71" pageNumber="72">
It is very probable that the specimen NRM-PZ Mo8745is that referred to by
<bibRefCitation id="41755CB3CD236A21F66C41C2FB77F8BE" author="Strand T." box="[1036,1234,1768,1795]" pageId="71" pageNumber="72" 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(1934:36)</bibRefCitation>
from the Boda Limestone.
</paragraph>
<paragraph id="255B2142CD236A21F2DD4066FEFDF8DB" blockId="71.[189,344,1868,1894]" box="[189,344,1868,1894]" pageId="71" pageNumber="72">
<heading id="7E13962ECD236A21F2DD4066FEFDF8DB" bold="true" box="[189,344,1868,1894]" fontSize="11" level="3" pageId="71" pageNumber="72" reason="3">
<emphasis id="1790FD50CD236A21F2DD4066FEFDF8DB" bold="true" box="[189,344,1868,1894]" pageId="71" pageNumber="72">Comparison</emphasis>
</heading>
</paragraph>
<paragraph id="255B2142CD236A21F2DD4051FB7FF828" blockId="71.[189,1242,1915,1941]" box="[189,1242,1915,1941]" pageId="71" pageNumber="72">
This species, with its prominent juvenile to adult annulation, is unique within
<taxonomicName id="E2E45AC1CD236A21F62F4056FB76F828" authorityName="Barrande" authorityYear="1867" box="[1103,1235,1916,1941]" class="Cephalopoda" family="Trocholitidae" genus="Discoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Tarphycerida" pageId="71" pageNumber="72" phylum="Mollusca" rank="genus">
<emphasis id="1790FD50CD236A21F62F4056FB76F828" box="[1103,1235,1916,1941]" italics="true" pageId="71" pageNumber="72">Discoceras</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="6DFE72C9CD2C6A2EF2DD4621FCC0FE5D" pageId="72" pageNumber="73" type="multiple">
<paragraph id="255B2142CD2C6A2EF2DD4621FDD8FE98" blockId="72.[189,637,267,293]" box="[189,637,267,293]" pageId="72" pageNumber="73">
<heading id="7E13962ECD2C6A2EF2DD4621FDD8FE98" bold="true" box="[189,637,267,293]" fontSize="11" level="3" pageId="72" pageNumber="73" reason="3">
<emphasis id="1790FD50CD2C6A2EF2DD4621FDD8FE98" bold="true" box="[189,637,267,293]" pageId="72" pageNumber="73">Stratigraphic and geographic range</emphasis>
</heading>
</paragraph>
<paragraph id="255B2142CD2C6A2EF2DD4610FCC0FE5D" blockId="72.[189,1399,313,481]" pageId="72" pageNumber="73">
Bønsnes Formation, Ringerike district, “Gastropod Limestone”, Oslo-Asker, and Skien-Langesund district,
<collectingCountry id="5DF361D2CD2C6A2EF37A4677FEDDFECA" box="[282,376,349,375]" name="Norway" pageId="72" pageNumber="73">Norway</collectingCountry>
(
<bibRefCitation id="41755CB3CD2C6A2EF3E54676FDBDFECA" author="Strand T." box="[389,536,348,375]" pageId="72" pageNumber="73" 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>
); erratic limestone boulders from northern
<collectingCountry id="5DF361D2CD2C6A2EF19F4677FBC9FECA" box="[1023,1132,349,375]" name="Germany" pageId="72" pageNumber="73">Germany</collectingCountry>
(
<bibRefCitation id="41755CB3CD2C6A2EF6194676FACCFECA" author="Hucke K. &amp; Voigt E." box="[1145,1385,348,375]" pageId="72" pageNumber="73" refId="ref48146" refString="Hucke K. &amp; Voigt E. 1967. Einfuhrung in die Geschiebeforschung (Sedimentargeschiebe). Nederlandse Geologische Vereniging, Oldenzaal." type="book" year="1967">Hucke &amp; Voigt 1967</bibRefCitation>
), and erratic limestone boulders from Vormsi/Pirgu Regional Stage (“Lyckholm stage”), Zawidowice,
<collectingCountry id="5DF361D2CD2C6A2EF2DD4689FEABFE00" box="[189,270,419,445]" name="Poland" pageId="72" pageNumber="73">Poland</collectingCountry>
(
<bibRefCitation id="41755CB3CD2C6A2EF37D4689FE38FE00" author="Dzik J." box="[285,413,419,445]" pageId="72" pageNumber="73" refId="ref47068" refString="Dzik J. 1984. Phylogeny of the Nautiloidea. Palaeontologia Polonica, Vol. 45, 203 pp." type="book" year="1984">Dzik 1984</bibRefCitation>
); Vormsi/Pirgu Regional Stage (“Lyckholm stage”),
<collectingCountry id="5DF361D2CD2C6A2EF6604689FBFDFE00" box="[1024,1112,419,445]" name="Estonia" pageId="72" pageNumber="73">Estonia</collectingCountry>
(
<bibRefCitation id="41755CB3CD2C6A2EF6064689FAA8FE00" author="Teichert C." box="[1126,1293,419,445]" pageId="72" pageNumber="73" pagination="264 - 312" refId="ref49750" refString="Teichert C. 1930. Die Cephalopoden-Fauna der Lyckholm-Stufe des Ostbaltikums. Palaontologische Zeitschrift 12: 264 - 312." type="journal article" year="1930">Teichert 1930</bibRefCitation>
; Balasov 1953); Boda Limestone,
<collectingRegion id="E720EFA0CD2C6A2EF38146ECFDE4FE5D" box="[481,577,454,480]" country="Sweden" name="Dalarna" pageId="72" pageNumber="73">Dalarna</collectingRegion>
,
<collectingCountry id="5DF361D2CD2C6A2EF02C46ECFD08FE5D" box="[588,685,454,480]" name="Sweden" pageId="72" pageNumber="73">Sweden</collectingCountry>
; all late Katian.
</paragraph>
</subSubSection>
</treatment>
</document>
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