324 lines
39 KiB
XML
324 lines
39 KiB
XML
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<mods:title id="CA483FD96C4A68F3959B0EFCD298BF6D">The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden</mods:title>
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<mods:namePart id="3FFD12DCAFB1E1C5F2110659F2CC2824">Kröger, Björn</mods:namePart>
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<mods:title id="9F37F9FE0158841CD1EEC71F8B568F4C">European Journal of Taxonomy</mods:title>
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<mods:part id="9F9A4A9598442358A18F9E99A5EFCC45">
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<mods:date id="6D577CBD1199BCB379B5C8EB0D9FBD46">2013</mods:date>
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<mods:number id="97DB6B4E423EE785942506AA67642259">2013-03-27</mods:number>
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<mods:identifier id="C210457E0FFB43C1CB106863685C89B5" type="DOI">10.5852/ejt.2013.41</mods:identifier>
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<treatment id="AD4D9054CD7B6A47F0374304FE03FC3E" ID-DOI="http://doi.org/10.5281/zenodo.3815166" ID-GBIF-Taxon="163977242" ID-Zenodo-Dep="3815166" LSID="urn:lsid:zoobank.org:act:1C1B98BD-F65E-4D72-8A31-203A0730E970" httpUri="http://treatment.plazi.org/id/AD4D9054CD7B6A47F0374304FE03FC3E" lastPageId="33" lastPageNumber="34" pageId="31" pageNumber="32">
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<subSubSection id="6DFE72C9CD7B6A79F0374304FC78FBF5" box="[599,989,1069,1096]" pageId="31" pageNumber="32" type="nomenclature">
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<paragraph id="255B2142CD7B6A79F0374304FC78FBF5" blockId="31.[368,1219,1069,1166]" box="[599,989,1069,1096]" pageId="31" pageNumber="32">
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<heading id="7E13962ECD7B6A79F0374304FC78FBF5" box="[599,989,1069,1096]" centered="true" fontSize="11" level="2" pageId="31" pageNumber="32" reason="2">
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<taxonomicName id="E2E45AC1CD7B6A79F0374304FCDEFBF5" authority="Kröger, 2013" authorityName="Kröger" authorityYear="2013" box="[599,891,1069,1096]" class="Cephalopoda" family="Dawsonoceratidae" genus="Dawsonoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="31" pageNumber="32" phylum="Mollusca" rank="species" species="stumburi" status="sp. nov.">
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<emphasis id="1790FD50CD7B6A79F0374304FCDEFBF5" bold="true" box="[599,891,1069,1096]" italics="true" pageId="31" pageNumber="32">Dawsonoceras stumburi</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="0CA3402BCD7B6A79F1E34304FC78FBF5" box="[899,989,1070,1096]" pageId="31" pageNumber="32" rank="species">sp. nov.</taxonomicNameLabel>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="6DFE72C9CD7B6A79F310437BFCCBFB33" pageId="31" pageNumber="32" type="description">
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<paragraph id="255B2142CD7B6A79F310437BFB66FBD1" blockId="31.[368,1219,1069,1166]" box="[368,1219,1105,1132]" pageId="31" pageNumber="32">
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<uri id="51752D40CD7B6A79F310437BFB66FBD1" box="[368,1219,1105,1132]" pageId="31" pageNumber="32">
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urn:lsid:zoobank.org:act:
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<uuid id="51421B97CD7B6A79F0F3437BFB66FBD1" box="[659,1219,1105,1132]" pageId="31" pageNumber="32">1C1B98BD-F65E-4D72-8A31-203A0730E970</uuid>
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</uri>
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</paragraph>
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<paragraph id="255B2142CD7B6A79F0A5435EFCCBFB33" blockId="31.[368,1219,1069,1166]" box="[709,878,1140,1166]" pageId="31" pageNumber="32">
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<figureCitation id="BDDF3DC7CD7B6A79F0A5435EFC94FB33" box="[709,817,1140,1166]" captionStart="Fig" captionStartId="30.[189,232,1770,1796]" captionTargetBox="[189,1395,932,1726]" captionTargetId="figure@30.[189,1400,932,1726]" captionTargetPageId="30" captionText="Fig. 16. Dawsonoceratidae and Proteoceratidae of the Boda Limestone. A-B. Dawsonoceras fenestratum (Eichwald, 1860), Kallholn. A. PMU 26702, nearly mature specimen with adorally decreasing angle of expansion. B. PMU 26712, juvenile specimen. C. Gorbyoceras sp. A, PMU 26772, Osmundsberget. D. Goryboceras sp. B, PMU 26773, Kallholn. E. Dawsonoceras stumburi sp. nov., PMU 26717, holotype, Kallholn. F. Gorbyoceras alternestriatum (Strand, 1934) comb. nov., PMU 26771, Unskarsheden. Scale bars: A-C, E = 10 mm; D = 10 mm; F = 10 mm." figureDoi="http://doi.org/10.5281/zenodo.3814257" httpUri="https://zenodo.org/record/3814257/files/figure.png" pageId="31" pageNumber="32">Figs 16E</figureCitation>
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,
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<figureCitation id="BDDF3DC7CD7B6A79F15D435EFCCBFB33" box="[829,878,1140,1166]" captionStart="Fig" captionStartId="32.[189,232,1690,1716]" captionTargetBox="[189,1400,266,1648]" captionTargetId="figure@32.[189,1400,266,1647]" captionTargetPageId="32" captionText="Fig. 17. Shell ornamentation of selected Orthocerida of the Boda Formation. A. Isorthoceras cf. elongatocinctum (Portlock, 1843), PMU 26825, Kallholn, adoral part of the specimen. B. Dawsonoceras stumburi sp. nov., PMU 26717, holotype, Kallholn. C. Gorbyoceras sp. A, PMU 26772, Osmundsberget. D. Isorthoceras cf. elongatocinctum (Portlock, 1843), same specimen as in A, adapical part of specimen. E. Isorthoceras junceum (Hall, 1847), PMU 26834, Kallholn. F. Gorbyoceras alternestriatum (Strand, 1934) comb. nov., PMU 26771, Unskarsheden. G. Isorthoceras curvilineatum sp. nov., PMU 26787, holotype, Osmundsberget. H. Isorthoceras angelini sp. nov., PMU 26774, holotype, Kallholn. I. Isorthoceras suave (Angelin in Angelin & Lindström, 1880) comb. nov., PMU 26835, Kallholn. Scale bar = 5 mm for all figures." figureDoi="http://doi.org/10.5281/zenodo.3814259" httpUri="https://zenodo.org/record/3814259/files/figure.png" pageId="31" pageNumber="32">17B</figureCitation>
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</paragraph>
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<subSubSection id="6DFE72C9CD7B6A79F2DD439CFC16FB6D" box="[189,947,1205,1232]" pageId="31" pageNumber="32" type="reference_group">
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<paragraph id="255B2142CD7B6A79F2DD439CFC16FB6D" blockId="31.[189,947,1205,1232]" box="[189,947,1205,1232]" pageId="31" pageNumber="32">
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<treatmentCitationGroup id="05F4066CCD7B6A79F2DD439CFC16FB6D" box="[189,947,1205,1232]" pageId="31" pageNumber="32">
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<taxonomicName id="E2E45AC1CD7B6A79F2DD439CFECEFB72" authorityName="Hyatt" authorityYear="1884" box="[189,363,1206,1231]" class="Cephalopoda" family="Dawsonoceratidae" genus="Dawsonoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="31" pageNumber="32" phylum="Mollusca" rank="genus">
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<emphasis id="1790FD50CD7B6A79F2DD439CFECEFB72" box="[189,363,1206,1231]" italics="true" pageId="31" pageNumber="32">Dawsonoceras</emphasis>
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</taxonomicName>
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sp. –
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<treatmentCitation id="A4450753CD7B6A79F3D1439CFD54FB6D" author="Kroger B. & Isakar M." box="[433,753,1205,1232]" page="157" pageId="31" pageNumber="32" year="2006">
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<bibRefCitation id="41755CB3CD7B6A79F3D1439CFD54FB6D" author="Kroger B. & Isakar M." box="[433,753,1205,1232]" pageId="31" pageNumber="32" pagination="139 - 165" refId="ref48361" refString="Kroger B. & Isakar M. 2006. Revision of annulated orthoceridan cephalopods of the Baltoscandic Ordovician. Fossil Record 9: 139 - 165. http: // dx. doi. org / 10.1002 / mmng. 200600005" type="journal article" year="2006">Kröger & Isakar 2006: 157</bibRefCitation>
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||
</treatmentCitation>
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||
, figs 10e, j, 12h.
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||
</treatmentCitationGroup>
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="6DFE72C9CD7B6A79F2DD43DDFB35FA14" pageId="31" pageNumber="32" type="diagnosis">
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||
<paragraph id="255B2142CD7B6A79F2DD43DDFE93FAAC" blockId="31.[189,310,1271,1297]" box="[189,310,1271,1297]" pageId="31" pageNumber="32">
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||
<heading id="7E13962ECD7B6A79F2DD43DDFE93FAAC" bold="true" box="[189,310,1271,1297]" fontSize="11" level="3" pageId="31" pageNumber="32" reason="3">
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||
<emphasis id="1790FD50CD7B6A79F2DD43DDFE93FAAC" bold="true" box="[189,310,1271,1297]" pageId="31" pageNumber="32">Diagnosis</emphasis>
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||
</heading>
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||
</paragraph>
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<paragraph id="255B2142CD7B6A79F2DD420CFB35FA14" blockId="31.[189,1398,1317,1449]" pageId="31" pageNumber="32">
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||
<taxonomicName id="E2E45AC1CD7B6A79F2DD420CFECEFA82" authorityName="Hyatt" authorityYear="1884" box="[189,363,1318,1343]" class="Cephalopoda" family="Dawsonoceratidae" genus="Dawsonoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="31" pageNumber="32" phylum="Mollusca" rank="genus">
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||
<emphasis id="1790FD50CD7B6A79F2DD420CFECEFA82" box="[189,363,1318,1343]" italics="true" pageId="31" pageNumber="32">Dawsonoceras</emphasis>
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</taxonomicName>
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with angle of expansion of ca. 5° and circular cross section; ca. five relatively shallow annulations occur at a distance similar to shell diameter; approximately 40 longitudinal lirae occur around shell circumference, more than 10 pronounced transverse striae occur per cycle of annulations; septal necks achoanitic; siphuncle subcentral, fusiform, expanded within chambers.
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</paragraph>
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||
</subSubSection>
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||
<subSubSection id="6DFE72C9CD7B6A79F2DD42FBFAD2F981" pageId="31" pageNumber="32" type="etymology">
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||
<paragraph id="255B2142CD7B6A79F2DD42FBFEE1FA56" blockId="31.[189,324,1489,1515]" box="[189,324,1489,1515]" pageId="31" pageNumber="32">
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||
<heading id="7E13962ECD7B6A79F2DD42FBFEE1FA56" bold="true" box="[189,324,1489,1515]" fontSize="11" level="3" pageId="31" pageNumber="32" reason="3">
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<emphasis id="1790FD50CD7B6A79F2DD42FBFEE1FA56" bold="true" box="[189,324,1489,1515]" pageId="31" pageNumber="32">Etymology</emphasis>
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</heading>
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</paragraph>
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<paragraph id="255B2142CD7B6A79F2DD412AFAD2F981" blockId="31.[189,1399,1535,1597]" pageId="31" pageNumber="32">
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In honor of Heino Stumbur (Tallinn), an Estonian geologist and paleontologist who first described this form in his unpublished diploma thesis (
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<bibRefCitation id="41755CB3CD7B6A79F0F34108FC98F980" author="Stumbur H." box="[659,829,1570,1597]" pageId="31" pageNumber="32" refId="ref49331" refString="Stumbur H. 1955. Eestin NSV ulem-ordoviitsiumi nautiloiididest. PhD thesis. Tartu Riikliku Ulikooli Matemaatika-loodusteaduskonna geoloogia oskonna uliopilase 156. Estonia." type="book" year="1955">Stumbur 1955</bibRefCitation>
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) under the
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<emphasis id="1790FD50CD7B6A79F1A24109FBC2F981" box="[962,1127,1570,1596]" italics="true" pageId="31" pageNumber="32">nomen nudum</emphasis>
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of
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<emphasis id="1790FD50CD7B6A79F6ED4109FAD2F981" box="[1165,1399,1570,1597]" italics="true" pageId="31" pageNumber="32">
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<taxonomicName id="E2E45AC1CD7B6A79F6ED4109FAD6F981" box="[1165,1395,1570,1597]" class="Cephalopoda" family="Pseudorthoceratidae" genus="Spyroceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="31" pageNumber="32" phylum="Mollusca" rank="species" species="paulum">Spyroceras paulum</taxonomicName>
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.
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</emphasis>
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</paragraph>
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</subSubSection>
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<subSubSection id="6DFE72C9CD7B6A79F2DD414EFEF0F911" box="[189,341,1636,1709]" pageId="31" pageNumber="32" type="materials_examined">
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<materialsCitation id="958C2B1FCD7B6A79F2DD414EFEF0F911" ID-GBIF-Occurrence="2610779311" box="[189,341,1636,1709]" collectionCode="PMU" pageId="31" pageNumber="32" specimenCode="PMU 26717" specimenCount="1" typeStatus="holotype">
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||
<paragraph id="255B2142CD7B6A79F2DD414EFE8AF9C3" blockId="31.[189,303,1636,1662]" box="[189,303,1636,1662]" pageId="31" pageNumber="32">
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<heading id="7E13962ECD7B6A79F2DD414EFE8AF9C3" bold="true" box="[189,303,1636,1662]" fontSize="11" level="3" pageId="31" pageNumber="32" reason="3">
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<emphasis id="1790FD50CD7B6A79F2DD414EFE8AF9C3" bold="true" box="[189,303,1636,1662]" pageId="31" pageNumber="32">
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<typeStatus id="FA5F9FE0CD7B6A79F2DD414EFE8AF9C3" box="[189,303,1636,1662]" pageId="31" pageNumber="32" type="holotype">Holotype</typeStatus>
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</emphasis>
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||
</heading>
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||
</paragraph>
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||
<paragraph id="255B2142CD7B6A79F2DD41B9FEF0F911" blockId="31.[189,341,1682,1709]" box="[189,341,1682,1709]" pageId="31" pageNumber="32">
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||
<specimenCode id="75428939CD7B6A79F2DD41B9FEF4F911" box="[189,337,1682,1709]" pageId="31" pageNumber="32">PMU 26717</specimenCode>
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||
.
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||
</paragraph>
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</materialsCitation>
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||
</subSubSection>
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||
<subSubSection id="6DFE72C9CD7B6A79F2DD41FEFA94F8A1" pageId="31" pageNumber="32" type="distribution">
|
||
<paragraph id="255B2142CD7B6A79F2DD41FEFE5EF953" blockId="31.[189,507,1748,1774]" box="[189,507,1748,1774]" pageId="31" pageNumber="32">
|
||
<heading id="7E13962ECD7B6A79F2DD41FEFE5EF953" bold="true" box="[189,507,1748,1774]" fontSize="11" level="3" pageId="31" pageNumber="32" reason="3">
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||
<emphasis id="1790FD50CD7B6A79F2DD41FEFE5EF953" bold="true" box="[189,507,1748,1774]" pageId="31" pageNumber="32">Type locality and horizon</emphasis>
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</heading>
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||
</paragraph>
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<paragraph id="255B2142CD7B6A79F2DD4028FA94F8A1" blockId="31.[189,1329,1794,1820]" box="[189,1329,1794,1820]" pageId="31" pageNumber="32">
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||
Kallholn, Siljan District,
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||
<collectingCountry id="5DF361D2CD7B6A79F3854028FDE0F8A1" box="[485,581,1794,1820]" name="Sweden" pageId="31" pageNumber="32">Sweden</collectingCountry>
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, Boda Limestone, Boda Core Member, late Katian, Ordovician.
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</paragraph>
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</subSubSection>
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<subSubSection id="6DFE72C9CD7B6A47F2DD406EFB01FE32" lastPageId="33" lastPageNumber="34" pageId="31" pageNumber="32" type="description">
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||
<paragraph id="255B2142CD7B6A79F2DD406EFEEBF8E3" blockId="31.[189,334,1860,1886]" box="[189,334,1860,1886]" pageId="31" pageNumber="32">
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<heading id="7E13962ECD7B6A79F2DD406EFEEBF8E3" bold="true" box="[189,334,1860,1886]" fontSize="11" level="3" pageId="31" pageNumber="32" reason="3">
|
||
<emphasis id="1790FD50CD7B6A79F2DD406EFEEBF8E3" bold="true" box="[189,334,1860,1886]" pageId="31" pageNumber="32">Description</emphasis>
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||
</heading>
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||
</paragraph>
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||
<paragraph id="255B2142CD7B6A47F2DD4058FB01FE32" blockId="31.[189,1399,1906,2004]" lastBlockId="33.[189,1398,267,399]" lastPageId="33" lastPageNumber="34" pageId="31" pageNumber="32">
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||
The
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<typeStatus id="FA5F9FE0CD7B6A79F2924058FEFCF831" box="[242,345,1906,1932]" pageId="31" pageNumber="32" type="holotype">holotype</typeStatus>
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||
is a piece of phragmocone with a length of
|
||
<quantity id="E21C8CA7CD7B6A79F13B4058FC08F830" box="[859,941,1906,1933]" metricMagnitude="-2" metricUnit="m" metricValue="7.2" pageId="31" pageNumber="32" unit="mm" value="72.0">72 mm</quantity>
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||
and a diameter of
|
||
<quantity id="E21C8CA7CD7B6A79F6E84058FAA3F830" box="[1160,1286,1906,1933]" metricMagnitude="-2" metricUnit="m" metricValue="1.7" metricValueMax="2.0" metricValueMin="1.4" pageId="31" pageNumber="32" unit="mm" value="17.0" valueMax="20.0" valueMin="14.0">14–20 mm</quantity>
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(angle of expansion 5°), with a circular conch cross section. The sutures are directly transverse, with a distance of
|
||
<quantity id="E21C8CA7CD7B6A79F2BF4093FE80F86E" box="[223,293,1977,2003]" metricMagnitude="-3" metricUnit="m" metricValue="3.0" pageId="31" pageNumber="32" unit="mm" value="3.0">3 mm</quantity>
|
||
at a diameter of
|
||
<quantity id="E21C8CA7CD7B6A79F3964092FDEEF86E" box="[502,587,1976,2003]" metricMagnitude="-2" metricUnit="m" metricValue="1.5" pageId="31" pageNumber="32" unit="mm" value="15.0">15 mm</quantity>
|
||
(0.2 of corresponding conch cross section;
|
||
<figureCitation id="BDDF3DC7CD7B6A79F63B4093FB63F869" box="[1115,1222,1977,2004]" captionStart="Fig" captionStartId="30.[189,232,1770,1796]" captionTargetBox="[189,1395,932,1726]" captionTargetId="figure@30.[189,1400,932,1726]" captionTargetPageId="30" captionText="Fig. 16. Dawsonoceratidae and Proteoceratidae of the Boda Limestone. A-B. Dawsonoceras fenestratum (Eichwald, 1860), Kallholn. A. PMU 26702, nearly mature specimen with adorally decreasing angle of expansion. B. PMU 26712, juvenile specimen. C. Gorbyoceras sp. A, PMU 26772, Osmundsberget. D. Goryboceras sp. B, PMU 26773, Kallholn. E. Dawsonoceras stumburi sp. nov., PMU 26717, holotype, Kallholn. F. Gorbyoceras alternestriatum (Strand, 1934) comb. nov., PMU 26771, Unskarsheden. Scale bars: A-C, E = 10 mm; D = 10 mm; F = 10 mm." figureDoi="http://doi.org/10.5281/zenodo.3814257" httpUri="https://zenodo.org/record/3814257/files/figure.png" pageId="31" pageNumber="32">Fig. 16E</figureCitation>
|
||
). The conch is ornamented with 40 distinctly raised longitudinal lirae around circumference. Additionally, the conch is annulated. The distance between two successive annulations is
|
||
<quantity id="E21C8CA7CD456A47F1BE4604FB9EFEF4" box="[990,1083,302,329]" metricMagnitude="-3" metricUnit="m" metricValue="3.5" pageId="33" pageNumber="34" unit="mm" value="3.5">3.5 mm</quantity>
|
||
at a corresponding conch diameter of
|
||
<quantity id="E21C8CA7CD456A47F3344678FE09FED1" box="[340,428,338,364]" metricMagnitude="-2" metricUnit="m" metricValue="1.6" pageId="33" pageNumber="34" unit="mm" value="16.0">16 mm</quantity>
|
||
(0.22 of distance similar to corresponding conch diameter). Approximately 20 distinct and directly transverse striae occur in a single cycle of annulation (
|
||
<figureCitation id="BDDF3DC7CD456A47F64C465FFB32FE32" box="[1068,1175,373,399]" captionStart="Fig" captionStartId="32.[189,232,1690,1716]" captionTargetBox="[189,1400,266,1648]" captionTargetId="figure@32.[189,1400,266,1647]" captionTargetPageId="32" captionText="Fig. 17. Shell ornamentation of selected Orthocerida of the Boda Formation. A. Isorthoceras cf. elongatocinctum (Portlock, 1843), PMU 26825, Kallholn, adoral part of the specimen. B. Dawsonoceras stumburi sp. nov., PMU 26717, holotype, Kallholn. C. Gorbyoceras sp. A, PMU 26772, Osmundsberget. D. Isorthoceras cf. elongatocinctum (Portlock, 1843), same specimen as in A, adapical part of specimen. E. Isorthoceras junceum (Hall, 1847), PMU 26834, Kallholn. F. Gorbyoceras alternestriatum (Strand, 1934) comb. nov., PMU 26771, Unskarsheden. G. Isorthoceras curvilineatum sp. nov., PMU 26787, holotype, Osmundsberget. H. Isorthoceras angelini sp. nov., PMU 26774, holotype, Kallholn. I. Isorthoceras suave (Angelin in Angelin & Lindström, 1880) comb. nov., PMU 26835, Kallholn. Scale bar = 5 mm for all figures." figureDoi="http://doi.org/10.5281/zenodo.3814259" httpUri="https://zenodo.org/record/3814259/files/figure.png" pageId="33" pageNumber="34">Fig. 17B</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<caption id="719B71CACD446A46F2DD41B0FE56F870" ID-DOI="http://doi.org/10.5281/zenodo.3814259" ID-Zenodo-Dep="3814259" httpUri="https://zenodo.org/record/3814259/files/figure.png" pageId="32" pageNumber="33" startId="32.[189,232,1690,1716]" targetBox="[189,1400,266,1648]" targetPageId="32">
|
||
<paragraph id="255B2142CD446A46F2DD41B0FE56F870" blockId="32.[189,1399,1690,1998]" pageId="32" pageNumber="33">
|
||
<emphasis id="1790FD50CD446A46F2DD41B0FE85F909" bold="true" box="[189,288,1690,1716]" pageId="32" pageNumber="33">Fig. 17.</emphasis>
|
||
Shell ornamentation of selected
|
||
<taxonomicName id="E2E45AC1CD446A46F0A041B0FCE9F909" authorityName="Kuhn" authorityYear="1940" box="[704,844,1690,1716]" class="Cephalopoda" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="32" pageNumber="33" phylum="Mollusca" rank="order">Orthocerida</taxonomicName>
|
||
of the Boda Formation.
|
||
<emphasis id="1790FD50CD446A46F6EC41B0FB04F909" bold="true" box="[1164,1185,1690,1716]" pageId="32" pageNumber="33">A</emphasis>
|
||
.
|
||
<taxonomicName id="E2E45AC1CD446A46F6D641B0FDEDF96A" authority="(Portlock, 1843)" authorityName="Kröger" authorityYear="2013" baseAuthorityName="Portlock" baseAuthorityYear="1843" class="Cephalopoda" family="Proteoceratidae" genus="Isorthoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="32" pageNumber="33" phylum="Mollusca" rank="species" species="elongatocinctum">
|
||
<emphasis id="1790FD50CD446A46F6D641B0FAEFF909" box="[1206,1354,1690,1716]" italics="true" pageId="32" pageNumber="33">Isorthoceras</emphasis>
|
||
cf.
|
||
<emphasis id="1790FD50CD446A46F2DD4197FE24F96A" box="[189,385,1725,1751]" italics="true" pageId="32" pageNumber="33">elongatocinctum</emphasis>
|
||
(
|
||
<bibRefCitation id="41755CB3CD446A46F3EE4197FD9BF96A" author="Portlock J. E." box="[398,574,1725,1751]" pageId="32" pageNumber="33" refId="ref48871" refString="Portlock J. E. 1843. Report on the Geology of the County of Londonderry and of parts of Tyrone and Fermanagh. Andrew Milliken, Dublin." type="book" year="1843">Portlock, 1843</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
, PMU 26825, Kallholn, adoral part of the specimen.
|
||
<emphasis id="1790FD50CD446A46F6C74197FB1EF96A" bold="true" box="[1191,1211,1725,1751]" pageId="32" pageNumber="33">B</emphasis>
|
||
.
|
||
<taxonomicName id="E2E45AC1CD446A46F6A84194FE80F947" authority="Kröger, 2013" authorityName="Kröger" authorityYear="2013" class="Cephalopoda" family="Dawsonoceratidae" genus="Dawsonoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="32" pageNumber="33" phylum="Mollusca" rank="species" species="stumburi" status="sp. nov.">
|
||
<emphasis id="1790FD50CD446A46F6A84194FE80F947" italics="true" pageId="32" pageNumber="33">Dawsonoceras stumburi</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="0CA3402BCD446A46F34B41CBFE23F946" box="[299,390,1761,1787]" pageId="32" pageNumber="33" rank="species">sp. nov.</taxonomicNameLabel>
|
||
, PMU 26717, holotype, Kallholn.
|
||
<emphasis id="1790FD50CD446A46F17341CAFC8DF947" bold="true" box="[787,808,1760,1786]" pageId="32" pageNumber="33">C</emphasis>
|
||
.
|
||
<taxonomicName id="E2E45AC1CD446A46F15541CAFC6BF947" authorityName="Shimizu & Obata" authorityYear="1935" box="[821,974,1760,1786]" class="Cephalopoda" family="Proteoceratidae" genus="Gorbyoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="32" pageNumber="33" phylum="Mollusca" rank="genus">
|
||
<emphasis id="1790FD50CD446A46F15541CAFC6BF947" box="[821,974,1760,1786]" italics="true" pageId="32" pageNumber="33">Gorbyoceras</emphasis>
|
||
</taxonomicName>
|
||
sp. A, PMU 26772, Osmundsberget.
|
||
<emphasis id="1790FD50CD446A46F2DD402EFF77F8A3" bold="true" box="[189,210,1796,1822]" pageId="32" pageNumber="33">D</emphasis>
|
||
.
|
||
<taxonomicName id="E2E45AC1CD446A46F2BF4029FC8CF8A0" authority="(Portlock, 1843)" authorityName="Kröger" authorityYear="2013" baseAuthorityName="Portlock" baseAuthorityYear="1843" box="[223,809,1795,1821]" class="Cephalopoda" family="Proteoceratidae" genus="Isorthoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="32" pageNumber="33" phylum="Mollusca" rank="species" species="elongatocinctum">
|
||
<emphasis id="1790FD50CD446A46F2BF4029FED6F8A0" box="[223,371,1795,1821]" italics="true" pageId="32" pageNumber="33">Isorthoceras</emphasis>
|
||
cf.
|
||
<emphasis id="1790FD50CD446A46F3FE4029FDC7F8A0" box="[414,610,1795,1821]" italics="true" pageId="32" pageNumber="33">elongatocinctum</emphasis>
|
||
(
|
||
<bibRefCitation id="41755CB3CD446A46F00F4029FC85F8A0" author="Portlock J. E." box="[623,800,1795,1821]" pageId="32" pageNumber="33" refId="ref48871" refString="Portlock J. E. 1843. Report on the Geology of the County of Londonderry and of parts of Tyrone and Fermanagh. Andrew Milliken, Dublin." type="book" year="1843">Portlock, 1843</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
, same specimen as in A, adapical part of specimen.
|
||
<emphasis id="1790FD50CD446A46F2DD400DFF74F8FC" bold="true" box="[189,209,1831,1857]" pageId="32" pageNumber="33">E</emphasis>
|
||
.
|
||
<taxonomicName id="E2E45AC1CD446A46F280400DFDDCF8FC" authority="(Hall, 1847)" baseAuthorityName="Hall" baseAuthorityYear="1847" box="[224,633,1830,1857]" class="Cephalopoda" family="Proteoceratidae" genus="Isorthoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="32" pageNumber="33" phylum="Mollusca" rank="species" species="junceum">
|
||
<emphasis id="1790FD50CD446A46F280400DFE7BF8FD" box="[224,478,1831,1857]" italics="true" pageId="32" pageNumber="33">Isorthoceras junceum</emphasis>
|
||
(
|
||
<bibRefCitation id="41755CB3CD446A46F38F400CFDD5F8FC" author="Hall J." box="[495,624,1830,1857]" pageId="32" pageNumber="33" refId="ref48004" refString="Hall J. 1847. Natural History of New York, Paleontology, Volume 1, containing Descriptions of the Organic Remains of the Lower Division of the New-York System (Equivalent of the Lower Silurian Rocks of Europe). Van Benthuysen, Albany, New York." type="book" year="1847">Hall, 1847</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
, PMU 26834, Kallholn.
|
||
<emphasis id="1790FD50CD446A46F1FA400DFC09F8FC" bold="true" box="[922,940,1831,1857]" pageId="32" pageNumber="33">F</emphasis>
|
||
.
|
||
<taxonomicName id="E2E45AC1CD446A46F1DB400DFEA4F8D9" authority="(Strand, 1934)" authorityName="Kröger" authorityYear="2013" baseAuthorityName="Strand" baseAuthorityYear="1934" class="Cephalopoda" family="Proteoceratidae" genus="Gorbyoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="32" pageNumber="33" phylum="Mollusca" rank="species" species="alternestriatum" status="comb. nov.">
|
||
<emphasis id="1790FD50CD446A46F1DB400DFAB4F8FC" box="[955,1297,1831,1857]" italics="true" pageId="32" pageNumber="33">Gorbyoceras alternestriatum</emphasis>
|
||
(
|
||
<bibRefCitation id="41755CB3CD446A46F741400CFF5CF8D9" author="Strand T." pageId="32" pageNumber="33" 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>
|
||
<taxonomicNameLabel id="0CA3402BCD446A46F36B4060FE37F8D9" box="[267,402,1866,1892]" pageId="32" pageNumber="33" rank="species">comb. nov.</taxonomicNameLabel>
|
||
, PMU 26771, Unskarsheden.
|
||
<emphasis id="1790FD50CD446A46F09C4060FCB6F8D9" bold="true" box="[764,787,1866,1892]" pageId="32" pageNumber="33">G</emphasis>
|
||
.
|
||
<taxonomicName id="E2E45AC1CD446A46F1444060FBC0F8D9" authority="Kröger, 2013" authorityName="Kröger" authorityYear="2013" box="[804,1125,1866,1892]" class="Cephalopoda" family="Proteoceratidae" genus="Isorthoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="32" pageNumber="33" phylum="Mollusca" rank="species" species="curvilineatum" status="sp. nov.">
|
||
<emphasis id="1790FD50CD446A46F1444060FBC0F8D9" box="[804,1125,1866,1892]" italics="true" pageId="32" pageNumber="33">Isorthoceras curvilineatum</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="0CA3402BCD446A46F60E4060FB6BF8D9" box="[1134,1230,1866,1892]" pageId="32" pageNumber="33" rank="species">sp. nov.</taxonomicNameLabel>
|
||
, PMU 26787, holotype, Osmundsberget.
|
||
<emphasis id="1790FD50CD446A46F0674047FDBBF83A" bold="true" box="[519,542,1901,1927]" pageId="32" pageNumber="33">H</emphasis>
|
||
.
|
||
<taxonomicName id="E2E45AC1CD446A46F0544047FC92F83A" authority="Kröger, 2013" authorityName="Kröger" authorityYear="2013" box="[564,823,1901,1927]" class="Cephalopoda" family="Proteoceratidae" genus="Isorthoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="32" pageNumber="33" phylum="Mollusca" rank="species" species="angelini" status="sp. nov.">
|
||
<emphasis id="1790FD50CD446A46F0544047FC92F83A" box="[564,823,1901,1927]" italics="true" pageId="32" pageNumber="33">Isorthoceras angelini</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="0CA3402BCD446A46F1264044FC0FF835" box="[838,938,1902,1928]" pageId="32" pageNumber="33" rank="species">sp. nov.</taxonomicNameLabel>
|
||
, PMU 26774, holotype, Kallholn.
|
||
<emphasis id="1790FD50CD446A46F7044047FACAF83A" bold="true" box="[1380,1391,1901,1927]" pageId="32" pageNumber="33">I</emphasis>
|
||
.
|
||
<taxonomicName id="E2E45AC1CD446A46F2DD40BAFC23F817" authority="(Angelin in Angelin & Lindstrom, 1880)" authorityName="Kröger" authorityYear="2013" baseAuthorityName="Angelin in Angelin & Lindstrom" baseAuthorityYear="1880" box="[189,902,1936,1962]" class="Cephalopoda" family="Proteoceratidae" genus="Isorthoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="32" pageNumber="33" phylum="Mollusca" rank="species" species="suave" status="comb. nov.">
|
||
<emphasis id="1790FD50CD446A46F2DD40BAFE39F817" box="[189,412,1936,1962]" italics="true" pageId="32" pageNumber="33">Isorthoceras suave</emphasis>
|
||
(Angelin in
|
||
<bibRefCitation id="41755CB3CD446A46F05240BAFCDBF817" author="Angelin N. P. & Lindstrom G." box="[562,894,1936,1962]" pageId="32" pageNumber="33" refId="ref46414" refString="Angelin N. P. & Lindstrom G. 1880. Fragmenta Silurica. Samson and Wallin, Stockholm." type="book" year="1880">Angelin & Lindström, 1880</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="0CA3402BCD446A46F1EE40BAFBB6F816" box="[910,1043,1936,1963]" pageId="32" pageNumber="33" rank="species">comb. nov.</taxonomicNameLabel>
|
||
, PMU 26835, Kallholn. Scale bar = 5 mm for all figures.
|
||
</paragraph>
|
||
</caption>
|
||
<subSubSection id="6DFE72C9CD456A47F2DD469CFBFDFD4D" pageId="33" pageNumber="34" type="discussion">
|
||
<paragraph id="255B2142CD456A47F2DD469CFEFDFE6D" blockId="33.[189,344,438,464]" box="[189,344,438,464]" pageId="33" pageNumber="34">
|
||
<heading id="7E13962ECD456A47F2DD469CFEFDFE6D" bold="true" box="[189,344,438,464]" fontSize="11" level="3" pageId="33" pageNumber="34" reason="3">
|
||
<emphasis id="1790FD50CD456A47F2DD469CFEFDFE6D" bold="true" box="[189,344,438,464]" pageId="33" pageNumber="34">Comparison</emphasis>
|
||
</heading>
|
||
</paragraph>
|
||
<paragraph id="255B2142CD456A47F2DD46CFFDCDFDD4" blockId="33.[189,1399,485,617]" pageId="33" pageNumber="34">
|
||
This species differs from
|
||
<taxonomicName id="E2E45AC1CD456A47F38D46CCFD39FE42" baseAuthorityName="Eichwald" baseAuthorityYear="1860" box="[493,668,485,511]" class="Cephalopoda" family="Dawsonoceratidae" genus="Dawsonoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="33" pageNumber="34" phylum="Mollusca" rank="species" species="fenestratum">
|
||
<emphasis id="1790FD50CD456A47F38D46CCFDA7FE42" box="[493,514,486,511]" italics="true" pageId="33" pageNumber="34">D</emphasis>
|
||
.
|
||
<emphasis id="1790FD50CD456A47F07146CFFD39FE42" box="[529,668,485,511]" italics="true" pageId="33" pageNumber="34">fenestratum</emphasis>
|
||
</taxonomicName>
|
||
in having a higher number of longitudinal lirae (ca.
|
||
<quantity id="E21C8CA7CD456A47F76E46CFFAD2FE42" box="[1294,1399,485,511]" metricMagnitude="-1" metricUnit="m" metricValue="6.35" metricValueMax="7.62" metricValueMin="5.08" pageId="33" pageNumber="34" unit="in" value="25.0" valueMax="30.0" valueMin="20.0">20–30 in</quantity>
|
||
<taxonomicName id="E2E45AC1CD456A47F2DD4523FEC9FD9F" baseAuthorityName="Eichwald" baseAuthorityYear="1860" box="[189,364,520,547]" class="Cephalopoda" family="Dawsonoceratidae" genus="Dawsonoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="33" pageNumber="34" phylum="Mollusca" rank="species" species="fenestratum">
|
||
<emphasis id="1790FD50CD456A47F2DD4523FF77FD9F" box="[189,210,521,546]" italics="true" pageId="33" pageNumber="34">D</emphasis>
|
||
.
|
||
<emphasis id="1790FD50CD456A47F2824522FEC9FD9F" box="[226,364,520,546]" italics="true" pageId="33" pageNumber="34">fenestratum</emphasis>
|
||
</taxonomicName>
|
||
against ca.
|
||
<quantity id="E21C8CA7CD456A47F39B4522FD9DFD9F" box="[507,568,520,546]" metricMagnitude="0" metricUnit="m" metricValue="1.016" pageId="33" pageNumber="34" unit="in" value="40.0">40 in</quantity>
|
||
<taxonomicName id="E2E45AC1CD456A47F0204523FD6BFD9F" authority="Kröger, 2013" authorityName="Kröger" authorityYear="2013" box="[576,718,520,546]" class="Cephalopoda" family="Dawsonoceratidae" genus="Dawsonoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="33" pageNumber="34" phylum="Mollusca" rank="species" species="stumburi" status="sp. nov.">
|
||
<emphasis id="1790FD50CD456A47F0204523FD6BFD9F" box="[576,718,520,546]" italics="true" pageId="33" pageNumber="34">D. stumburi</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="0CA3402BCD456A47F0B64523FC93FD9E" box="[726,822,521,547]" pageId="33" pageNumber="34" rank="species">sp. nov.</taxonomicNameLabel>
|
||
). Additionally, the transverse annulation appears to be less pronounced and slightly more widely spaced in
|
||
<taxonomicName id="E2E45AC1CD456A47F1044506FC55FDF8" authority="Kröger, 2013" authorityName="Kröger" authorityYear="2013" box="[868,1008,555,581]" class="Cephalopoda" family="Dawsonoceratidae" genus="Dawsonoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="33" pageNumber="34" phylum="Mollusca" rank="species" species="stumburi" status="sp. nov.">
|
||
<emphasis id="1790FD50CD456A47F1044506FC55FDF8" box="[868,1008,555,581]" italics="true" pageId="33" pageNumber="34">D. stumburi</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="0CA3402BCD456A47F1984506FBF0FDFB" box="[1016,1109,556,582]" pageId="33" pageNumber="34" rank="species">sp. nov.</taxonomicNameLabel>
|
||
, but the transverse striae are narrower than in
|
||
<taxonomicName id="E2E45AC1CD456A47F3D14565FDC6FDD4" baseAuthorityName="Eichwald" baseAuthorityYear="1860" box="[433,611,591,617]" class="Cephalopoda" family="Dawsonoceratidae" genus="Dawsonoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="33" pageNumber="34" phylum="Mollusca" rank="species" species="fenestratum">
|
||
<emphasis id="1790FD50CD456A47F3D14565FE63FDD5" box="[433,454,591,616]" italics="true" pageId="33" pageNumber="34">D</emphasis>
|
||
.
|
||
<emphasis id="1790FD50CD456A47F3B54565FDC6FDD4" box="[469,611,591,617]" italics="true" pageId="33" pageNumber="34">fenestratum</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="1790FD50CD456A47F0044565FDCDFDD4" box="[612,616,591,617]" italics="true" pageId="33" pageNumber="34">.</emphasis>
|
||
</paragraph>
|
||
<paragraph id="255B2142CD456A47F2DD45BAFBFDFD4D" blockId="33.[189,1399,656,753]" pageId="33" pageNumber="34">
|
||
The external characters of
|
||
<taxonomicName id="E2E45AC1CD456A47F38E45BBFDDDFD17" authority="Kröger, 2013" authorityName="Kröger" authorityYear="2013" box="[494,632,656,682]" class="Cephalopoda" family="Dawsonoceratidae" genus="Dawsonoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="33" pageNumber="34" phylum="Mollusca" rank="species" species="stumburi" status="sp. nov.">
|
||
<emphasis id="1790FD50CD456A47F38E45BBFDDDFD17" box="[494,632,656,682]" italics="true" pageId="33" pageNumber="34">D. stumburi</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="0CA3402BCD456A47F01D45BAFD73FD17" box="[637,726,656,682]" pageId="33" pageNumber="34" rank="species">sp. nov.</taxonomicNameLabel>
|
||
are identical to those of
|
||
<taxonomicName id="E2E45AC1CD456A47F18C45BAFAD2FD17" authority="Hall, 1847" authorityName="Hall" authorityYear="1847" box="[1004,1399,656,682]" class="Liliopsida" family="Orchidaceae" genus="Orthoceras" kingdom="Plantae" order="Asparagales" pageId="33" pageNumber="34" phylum="Tracheophyta" rank="species" species="clathratum">
|
||
<emphasis id="1790FD50CD456A47F18C45BAFBD7FD17" box="[1004,1138,656,682]" italics="true" pageId="33" pageNumber="34">Orthoceras</emphasis>
|
||
<emphasis id="1790FD50CD456A47F61645BAFB52FD17" box="[1142,1271,656,682]" italics="true" pageId="33" pageNumber="34">clathratum</emphasis>
|
||
<bibRefCitation id="41755CB3CD456A47F69D45BAFAD2FD17" author="Hall J." box="[1277,1399,656,682]" pageId="33" pageNumber="34" refId="ref48004" refString="Hall J. 1847. Natural History of New York, Paleontology, Volume 1, containing Descriptions of the Organic Remains of the Lower Division of the New-York System (Equivalent of the Lower Silurian Rocks of Europe). Van Benthuysen, Albany, New York." type="book" year="1847">Hall, 1847</bibRefCitation>
|
||
</taxonomicName>
|
||
from the Katian Middleville Formation of
|
||
<collectingRegion id="E720EFA0CD456A47F0D1459EFC8DFD70" box="[689,808,691,718]" country="United States of America" name="New York" pageId="33" pageNumber="34">New York</collectingRegion>
|
||
(see, e.g.,
|
||
<bibRefCitation id="41755CB3CD456A47F1C8459EFBE0FD70" author="Foerste A. F." box="[936,1093,691,718]" pageId="33" pageNumber="34" pagination="236 - 320" refId="ref47657" refString="Foerste A. F. 1928. A restudy of American orthoconic Silurian cephalopods. Journal of the Scientific Laboratories of Denison University 23: 236 - 320." type="journal article" year="1928">Foerste 1928</bibRefCitation>
|
||
). But a synonymization is at present not possible, as the internal characters of this species are not known.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="6DFE72C9CD456A47F2DD4432FE03FC3E" pageId="33" pageNumber="34" type="multiple">
|
||
<paragraph id="255B2142CD456A47F2DD4432FDD8FC8F" blockId="33.[189,637,792,818]" box="[189,637,792,818]" pageId="33" pageNumber="34">
|
||
<heading id="7E13962ECD456A47F2DD4432FDD8FC8F" bold="true" box="[189,637,792,818]" fontSize="11" level="3" pageId="33" pageNumber="34" reason="3">
|
||
<emphasis id="1790FD50CD456A47F2DD4432FDD8FC8F" bold="true" box="[189,637,792,818]" pageId="33" pageNumber="34">Stratigraphic and geographic range</emphasis>
|
||
</heading>
|
||
</paragraph>
|
||
<paragraph id="255B2142CD456A47F2DD446CFE03FC3E" blockId="33.[189,1398,838,899]" pageId="33" pageNumber="34">
|
||
Vormsi Regional Stages,
|
||
<collectingCountry id="5DF361D2CD456A47F382446CFD9FFCDD" box="[482,570,838,864]" name="Estonia" pageId="33" pageNumber="34">Estonia</collectingCountry>
|
||
(
|
||
<bibRefCitation id="41755CB3CD456A47F028446CFCEAFCDC" author="Kroger B. & Isakar M." box="[584,847,838,865]" pageId="33" pageNumber="34" pagination="139 - 165" refId="ref48361" refString="Kroger B. & Isakar M. 2006. Revision of annulated orthoceridan cephalopods of the Baltoscandic Ordovician. Fossil Record 9: 139 - 165. http: // dx. doi. org / 10.1002 / mmng. 200600005" type="journal article" year="2006">Kröger & Isakar 2006</bibRefCitation>
|
||
); Boda Limestone, Siljan District,
|
||
<collectingCountry id="5DF361D2CD456A47F681446CFAE7FCDD" box="[1249,1346,838,864]" name="Sweden" pageId="33" pageNumber="34">Sweden</collectingCountry>
|
||
; late Katian, Ordovician.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |