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<document id="E332AE1F2D89AD18EDFD9CD973AA2F10" ID-CLB-Dataset="20271" ID-DOI="10.5852/ejt.2022.799.1681" ID-GBIF-Dataset="f53d5465-7162-45d6-892b-dfc0b8d99789" ID-ISSN="2118-9773" ID-Zenodo-Dep="6341270" ID-ZooBank="F52DBAB0-38C7-400F-9BA1-E2D8E6B19E7E" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1646831675572" checkinUser="felipe" docAuthor="Aubrechtová, Martina &amp; Korn, Dieter" docDate="2022" docId="03FE5868FFA33D03DD3FFCC0FCC4FC19" docLanguage="en" docName="ejt-799_1-108.pdf" docOrigin="European Journal of Taxonomy 799 (1)" docSource="http://dx.doi.org/10.5852/ejt.2022.799.1681" docStyle="DocumentStyle:EF2B578F1D15862ADE45B0C07C620911.14:EJT.2018-.journal_article.type1" docStyleId="EF2B578F1D15862ADE45B0C07C620911" docStyleName="EJT.2018-.journal_article.type1" docStyleVersion="14" docTitle="Trilacinoceras discors" docType="treatment" docVersion="9" lastPageNumber="89" masterDocId="FFC72010FFF53D5BDF7EFF83FFE3FFD1" masterDocTitle="Taxonomy and ontogeny of the Lituitida (Cephalopoda) from Orthoceratite Limestone erratics (Middle Ordovician)" masterLastPageNumber="108" masterPageNumber="1" pageNumber="87" updateTime="1699317703155" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0" zenodo-license-figures="CC-BY-4.0" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="9F8EA94A0D55DF2280B423857F525294">Taxonomy and ontogeny of the Lituitida (Cephalopoda) from Orthoceratite Limestone erratics (Middle Ordovician)</mods:title>
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<mods:namePart id="E277ECD8EC4D4FE2A5E2F902EBC48252">Aubrechtová, Martina</mods:namePart>
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<mods:affiliation id="2CD6D40702A8382268AB0D67072CC8A8">Institute of Geology and Palaeontology, Faculty of Science, Charles University Prague, Albertov 6, Prague, 12843, Czech Republic. &amp; Institute of Geology, Czech Academy of Sciences, Rozvojová 269, Prague, 16500, Czech Republic.</mods:affiliation>
<mods:nameIdentifier id="F4A70B6AEF3DDAD90015E9C0DB5327A0" type="email">aubrech1@natur.cuni.cz,aubrechtova@gli.cas.cz</mods:nameIdentifier>
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<mods:namePart id="064AA7C3CE5B626D238A55392456FDAD">Korn, Dieter</mods:namePart>
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<mods:affiliation id="E62C11231DC68F34AD38A661E3897923">Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Invalidenstrasse 43, 10115 Berlin, Germany.</mods:affiliation>
<mods:nameIdentifier id="F79A5E5E785CC76E227DF248DB8AD29E" type="email">dieter.korn@mfn.berlin</mods:nameIdentifier>
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<mods:title id="3BB34693AB27EE66D1B779D4CE94313F">European Journal of Taxonomy</mods:title>
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<mods:date id="887424203D06FE8DF30BBCDB7E75E736">2022</mods:date>
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<mods:number id="AA3C5E7F29470C4ED2A537EBCAEAB8BD">799</mods:number>
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<treatment id="03FE5868FFA33D03DD3FFCC0FCC4FC19" ID-DOI="http://doi.org/10.5281/zenodo.6347630" ID-GBIF-Taxon="193941457" ID-Zenodo-Dep="6347630" LSID="urn:lsid:plazi:treatment:03FE5868FFA33D03DD3FFCC0FCC4FC19" httpUri="http://treatment.plazi.org/id/03FE5868FFA33D03DD3FFCC0FCC4FC19" lastPageId="88" lastPageNumber="89" pageId="86" pageNumber="87">
<subSubSection id="C34DBAF5FFA33D0DDD3FFCC0FC10FC8F" box="[577,1011,835,862]" pageId="86" pageNumber="87" type="nomenclature">
<paragraph id="8BE8E97EFFA33D0DDD3FFCC0FC10FC8F" blockId="86.[577,1011,835,897]" box="[577,1011,835,862]" pageId="86" pageNumber="87">
<heading id="D0A05E12FFA33D0DDD3FFCC0FC10FC8F" box="[577,1011,835,862]" centered="true" fontSize="11" level="2" pageId="86" pageNumber="87" reason="2">
<taxonomicName id="4C5792FDFFA33D0DDD3FFCC0FC10FC8F" authority="(Holm, 1891)" baseAuthorityName="Holm" baseAuthorityYear="1891" box="[577,1011,835,862]" class="Cephalopoda" family="Lituitidae" genus="Trilacinoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="86" pageNumber="87" phylum="Mollusca" rank="species" species="discors">
<emphasis id="B923356CFFA33D0DDD3FFCC0FCAFFC8F" bold="true" box="[577,844,835,862]" italics="true" pageId="86" pageNumber="87">Trilacinoceras discors</emphasis>
(
<bibRefCitation id="EFC6948FFFA33D0DDC25FCC7FC09FC8F" author="Holm G." box="[859,1002,836,862]" pageId="86" pageNumber="87" pagination="736 - 780" refId="ref47009" refString="Holm G. 1891. Om mynningen hos Lituites Breyn. Geologiska Foreningen i Stockholm Forhandlingar 13: 736 - 780. https: // doi. org / 10.1080 / 11035899109445850" type="journal article" year="1891">Holm, 1891</bibRefCitation>
)
</taxonomicName>
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</paragraph>
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<subSubSection id="C34DBAF5FFA33D0DDD01FCE4FC56FC50" box="[639,949,871,897]" pageId="86" pageNumber="87" type="description">
<paragraph id="8BE8E97EFFA33D0DDD01FCE4FC56FC50" blockId="86.[577,1011,835,897]" box="[639,949,871,897]" pageId="86" pageNumber="87">
<figureCitation id="136CF5FBFFA33D0DDD01FCE4FCEEFC50" box="[639,781,871,897]" captionStart="Fig" captionStartId="87.[189,232,1778,1804]" captionTargetBox="[191,1388,809,1736]" captionTargetId="figure-175@87.[189,1399,793,1740]" captionTargetPageId="87" captionText="Fig. 66. Species of Trilacinoceras Sweet, 1958 from the Upper Grey Orthoceratite Limestone. A. Trilacinoceras discors (Holm, 1891), specimen MB.C.30552 (Neben &amp; Krueger Coll.) from Niederfinow(Brandenburg); previouslyfiguredby Neben&amp;Krueger(1971:pl. 21fig.1). B.Trilacinoceras discors (Holm, 1891), specimen MB.C.30553 from Schwedt (Brandenburg). C. Trilacinoceras knoefleri sp. nov., holotype MB.C.11658 (Knöfler Coll.) from Teschendorf near Löwenberg (Brandenburg). D. Trilacinoceras knoefleri sp. nov., paratype MB.C.30559 (Krueger Coll.) from Mukran (Sassnitz, Island of Rügen) (Mecklenburg-Vorpommern). Scale bar units = 1 mm." figureDoi="http://doi.org/10.5281/zenodo.6341416" httpUri="https://zenodo.org/record/6341416/files/figure.png" pageId="86" pageNumber="87">Fig. 66A–B</figureCitation>
,
<tableCitation id="C6D5DCC5FFA33D0DDC66FCE4FC56FC50" box="[792,949,871,897]" captionStart-0="Table 12" captionStart-1="Table 13" captionStartId-0="90.[189,259,265,291]" captionStartId-1="93.[189,259,265,291]" captionTargetPageId-0="90" captionTargetPageId-1="93" captionText-0="Table 12. Conch measurements (in mm), ratios and rates of coiled conch parts of Trilacinoceras Sweet, 1958." captionText-1="Table 13. Conch measurements (in mm), and expansion rates of uncoiled conch parts of Trilacinoceras Sweet, 1958." pageId="86" pageNumber="87">Tables 12–13</tableCitation>
</paragraph>
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<subSubSection id="C34DBAF5FFA33D0DDFC3FC2AFC28FBBF" pageId="86" pageNumber="87" type="reference_group">
<paragraph id="8BE8E97EFFA33D0DDFC3FC2AFC6AFC12" blockId="86.[189,905,936,963]" box="[189,905,936,963]" pageId="86" pageNumber="87">
<treatmentCitationGroup id="AB47CE50FFA33D0DDFC3FC2AFC6AFC12" box="[189,905,936,963]" pageId="86" pageNumber="87">
<treatmentCitation id="0AF6CF6FFFA33D0DDFC3FC2AFDD7FC13" author="Holm G." box="[189,564,936,963]" page="26" pageId="86" pageNumber="87" year="1891">
<taxonomicName id="4C5792FDFFA33D0DDFC3FC2AFDD7FC13" authority="Holm, 1891: 26" authorityName="Holm" authorityPageNumber="26" authorityYear="1891" box="[189,564,936,963]" class="Cephalopoda" family="Lituitidae" genus="Lituites" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="86" pageNumber="87" phylum="Mollusca" rank="species" species="discors">
<emphasis id="B923356CFFA33D0DDFC3FC2AFE92FC13" box="[189,369,936,962]" italics="true" pageId="86" pageNumber="87">Lituites discors</emphasis>
<bibRefCitation id="EFC6948FFFA33D0DDE06FC2BFDD7FC13" author="Holm G." box="[376,564,936,963]" pageId="86" pageNumber="87" pagination="736 - 780" refId="ref47009" refString="Holm G. 1891. Om mynningen hos Lituites Breyn. Geologiska Foreningen i Stockholm Forhandlingar 13: 736 - 780. https: // doi. org / 10.1080 / 11035899109445850" type="journal article" year="1891">Holm, 1891: 26</bibRefCitation>
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, pl. 1 figs 5–7, pl. 3 figs 3–4.
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</paragraph>
<paragraph id="8BE8E97EFFA33D0DDFC3FC69FD7CFBD4" blockId="86.[189,1384,1002,1134]" box="[189,671,1002,1029]" pageId="86" pageNumber="87">
<treatmentCitationGroup id="AB47CE50FFA33D0DDFC3FC69FD7CFBD4" box="[189,671,1002,1029]" pageId="86" pageNumber="87">
<taxonomicName id="4C5792FDFFA33D0DDFC3FC69FE58FBD5" box="[189,443,1002,1028]" class="Cephalopoda" family="Lituitidae" genus="Ancistroceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="86" pageNumber="87" phylum="Mollusca" rank="species" species="discors">
<emphasis id="B923356CFFA33D0DDFC3FC69FE58FBD5" box="[189,443,1002,1028]" italics="true" pageId="86" pageNumber="87">Ancistroceras discors</emphasis>
</taxonomicName>
–
<treatmentCitation id="0AF6CF6FFFA33D0DDEA6FC68FD78FBD4" author="Hyatt A." box="[472,667,1002,1029]" page="508" pageId="86" pageNumber="87" year="1894">
<bibRefCitation id="EFC6948FFFA33D0DDEA6FC68FD78FBD4" author="Hyatt A." box="[472,667,1002,1029]" pageId="86" pageNumber="87" pagination="349 - 647" refId="ref47060" refString="Hyatt A. 1894. Phylogeny of an acquired characteristic. Proceedings of the American Philosophical Society 32: 349 - 647. https: // doi. org / 10.5962 / bhl. title. 59826" type="journal article" year="1894">Hyatt 1894: 508</bibRefCitation>
</treatmentCitation>
.
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</paragraph>
<paragraph id="8BE8E97EFFA33D0DDFC3FB8EFC5BFB9A" blockId="86.[189,1384,1002,1134]" pageId="86" pageNumber="87">
<treatmentCitationGroup id="AB47CE50FFA33D0DDFC3FB8EFC5BFB9A" pageId="86" pageNumber="87">
<taxonomicName id="4C5792FDFFA33D0DDFC3FB8EFE25FBF6" baseAuthorityName="Holm" baseAuthorityYear="1891" box="[189,454,1037,1063]" class="Cephalopoda" family="Lituitidae" genus="Trilacinoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="86" pageNumber="87" phylum="Mollusca" rank="species" species="discors">
<emphasis id="B923356CFFA33D0DDFC3FB8EFE25FBF6" box="[189,454,1037,1063]" italics="true" pageId="86" pageNumber="87">Trilacinoceras discors</emphasis>
</taxonomicName>
–
<treatmentCitation id="0AF6CF6FFFA33D0DDE9BFB8EFD4CFBF6" author="Sweet W. C." box="[485,687,1037,1064]" page="147" pageId="86" pageNumber="87" year="1958">
<bibRefCitation id="EFC6948FFFA33D0DDE9BFB8EFD4CFBF6" author="Sweet W. C." box="[485,687,1037,1064]" pageId="86" pageNumber="87" pagination="1 - 176" refId="ref49478" refString="Sweet W. C. 1958. The Middle Ordovician of the Oslo region, Norway. 10. Nautiloid cephalopods. Norsk Geologisk Tidsskrift 38: 1 - 176." type="journal article" year="1958">Sweet 1958: 147</bibRefCitation>
</treatmentCitation>
, pl. 13 figs 1, 4, 6, pl. 15 fig. 5, pl. 16 figs 1, 3, 7–8, 10. —
<bibRefCitation id="EFC6948FFFA33D0DDF94FBB3FE7DFB9B" author="Balashov Z. G." box="[234,414,1072,1098]" pageId="86" pageNumber="87" pagination="77 - 82" refId="ref45561" refString="Balashov Z. G. 1962. Otryad Tarphyceratida. In: Orlov Y. A. (ed.) Osnovy Paleontologii, Mollyuski- Golovonogie 1: 77 - 82. Akademiya Nauk SSSR, Moskva." type="journal article" year="1962">Balashov 1962</bibRefCitation>
: pl. 7 fig. 6. —
<treatmentCitation id="0AF6CF6FFFA33D0DDD3BFBB3FD1DFB9A" author="Dzik J." box="[581,766,1072,1099]" page="138" pageId="86" pageNumber="87" year="1984">
<bibRefCitation id="EFC6948FFFA33D0DDD3BFBB3FD1DFB9A" author="Dzik J." box="[581,766,1072,1099]" pageId="86" pageNumber="87" pagination="1 - 219" refId="ref46370" refString="Dzik J. 1984. Phylogeny of the Nautiloidea. Palaeontologia Polonica 45: 1 - 219." type="journal article" year="1984">Dzik 1984: 138</bibRefCitation>
</treatmentCitation>
, text-fig. 55.12.
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</paragraph>
<paragraph id="8BE8E97EFFA33D0DDFC3FBD7FC28FBBF" blockId="86.[189,1384,1002,1134]" box="[189,971,1107,1134]" pageId="86" pageNumber="87">
<treatmentCitationGroup id="AB47CE50FFA33D0DDFC3FBD7FC28FBBF" box="[189,971,1107,1134]" pageId="86" pageNumber="87">
<taxonomicName id="4C5792FDFFA33D0DDFC3FBD7FE92FBBF" authorityName="Holm" authorityYear="1891" box="[189,369,1108,1134]" class="Cephalopoda" family="Lituitidae" genus="Lituites" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="86" pageNumber="87" phylum="Mollusca" rank="species" species="discors">
<emphasis id="B923356CFFA33D0DDFC3FBD7FE92FBBF" box="[189,369,1108,1134]" italics="true" pageId="86" pageNumber="87">Lituites discors</emphasis>
</taxonomicName>
–
<treatmentCitation id="0AF6CF6FFFA33D0DDEF0FBD7FDA4FBBF" author="Dzik J." box="[398,583,1108,1134]" page="137" pageId="86" pageNumber="87" year="1984">
<bibRefCitation id="EFC6948FFFA33D0DDEF0FBD7FDA4FBBF" author="Dzik J." box="[398,583,1108,1134]" pageId="86" pageNumber="87" pagination="1 - 219" refId="ref46370" refString="Dzik J. 1984. Phylogeny of the Nautiloidea. Palaeontologia Polonica 45: 1 - 219." type="journal article" year="1984">Dzik 1984: 137</bibRefCitation>
</treatmentCitation>
, text-fig. 53b, e, pl. 40 figs 4–10.
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</paragraph>
</subSubSection>
<subSubSection id="C34DBAF5FFA33D0DDFC3FB16FA80FA5F" pageId="86" pageNumber="87" type="diagnosis">
<paragraph id="8BE8E97EFFA33D0DDFC3FB16FED5FB7E" blockId="86.[189,310,1173,1199]" box="[189,310,1173,1199]" pageId="86" pageNumber="87">
<heading id="D0A05E12FFA33D0DDFC3FB16FED5FB7E" bold="true" box="[189,310,1173,1199]" fontSize="11" level="3" pageId="86" pageNumber="87" reason="3">
<emphasis id="B923356CFFA33D0DDFC3FB16FED5FB7E" bold="true" box="[189,310,1173,1199]" pageId="86" pageNumber="87">Diagnosis</emphasis>
</heading>
</paragraph>
<paragraph id="8BE8E97EFFA33D0DDFC3FB40FA80FA5F" blockId="86.[189,1398,1219,1422]" pageId="86" pageNumber="87">
Species of the genus
<taxonomicName id="4C5792FDFFA33D0DDEBAFB40FD8CFB0C" authorityName="Sweet" authorityYear="1958" box="[452,623,1219,1245]" class="Cephalopoda" family="Lituitidae" genus="Trilacinoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="86" pageNumber="87" phylum="Mollusca" rank="genus">
<emphasis id="B923356CFFA33D0DDEBAFB40FD8CFB0C" box="[452,623,1219,1245]" italics="true" pageId="86" pageNumber="87">Trilacinoceras</emphasis>
</taxonomicName>
with coiled conch
<quantity id="4CAF449BFFA33D0DDC23FB47FC03FB0F" box="[861,992,1220,1246]" metricMagnitude="-2" metricUnit="m" metricValue="2.55" metricValueMax="3.3" metricValueMin="1.8" pageId="86" pageNumber="87" unit="mm" value="25.5" valueMax="33.0" valueMin="18.0">18–33 mm</quantity>
in diameter; 2–3 coiling open or whorls contiguous. Whorl profile slightly compressed through ontogeny, commonly ventrally flattened; whorl expansion rate ca 2.70. Expansion angle of uncoiled part 3–6°; whorl height at maturity about
<quantity id="4CAF449BFFA33D0DDFC1FAAEFEF1FA99" box="[191,274,1325,1352]" metricMagnitude="-2" metricUnit="m" metricValue="2.3" pageId="86" pageNumber="87" unit="mm" value="23.0">23 mm</quantity>
. Shell surface with annuli and/or lirae, typically fine in the coiled part (less than
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apart) and coarser in the uncoiled part (up to ca
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apart) of the conch. Mature aperture with very shallow and broad lateral sinuses and a short and wide ventral sinus (after
<bibRefCitation id="EFC6948FFFA33D0DDCECFAF0FBF4FA5F" author="Holm G." box="[914,1047,1395,1422]" pageId="86" pageNumber="87" pagination="736 - 780" refId="ref47009" refString="Holm G. 1891. Om mynningen hos Lituites Breyn. Geologiska Foreningen i Stockholm Forhandlingar 13: 736 - 780. https: // doi. org / 10.1080 / 11035899109445850" type="journal article" year="1891">Holm 1891</bibRefCitation>
and
<bibRefCitation id="EFC6948FFFA33D0DDB31FAF7FB3FFA5F" author="Sweet W. C." box="[1103,1244,1395,1422]" pageId="86" pageNumber="87" pagination="1 - 176" refId="ref49478" refString="Sweet W. C. 1958. The Middle Ordovician of the Oslo region, Norway. 10. Nautiloid cephalopods. Norsk Geologisk Tidsskrift 38: 1 - 176." type="journal article" year="1958">Sweet 1958</bibRefCitation>
; modified).
</paragraph>
</subSubSection>
<subSubSection id="C34DBAF5FFA33D0DDFC3FA36FAAFF839" pageId="86" pageNumber="87" type="materials_examined">
<paragraph id="8BE8E97EFFA33D0DDFC3FA36FE8FFA1E" blockId="86.[189,364,1461,1487]" box="[189,364,1461,1487]" pageId="86" pageNumber="87">
<heading id="D0A05E12FFA33D0DDFC3FA36FE8FFA1E" bold="true" box="[189,364,1461,1487]" fontSize="11" level="3" pageId="86" pageNumber="87" reason="3">
<emphasis id="B923356CFFA33D0DDFC3FA36FE8FFA1E" bold="true" box="[189,364,1461,1487]" pageId="86" pageNumber="87">
<typeStatus id="54EC57DCFFA33D0DDFC3FA36FF19FA1E" box="[189,250,1461,1487]" pageId="86" pageNumber="87">Type</typeStatus>
material
</emphasis>
</heading>
</paragraph>
<paragraph id="8BE8E97EFFA33D0DDFC3FA67FBAFF994" blockId="86.[189,1399,1507,1605]" pageId="86" pageNumber="87">
Not available for study;
<bibRefCitation id="EFC6948FFFA33D0DDEA5FA60FD97FA2F" author="Holm G." box="[475,628,1507,1534]" pageId="86" pageNumber="87" pagination="736 - 780" refId="ref47009" refString="Holm G. 1891. Om mynningen hos Lituites Breyn. Geologiska Foreningen i Stockholm Forhandlingar 13: 736 - 780. https: // doi. org / 10.1080 / 11035899109445850" type="journal article" year="1891">Holm (1891)</bibRefCitation>
did not specify a
<typeStatus id="54EC57DCFFA33D0DDC38FA67FC9AFA2F" box="[838,889,1508,1534]" pageId="86" pageNumber="87">type</typeStatus>
but he illustrated several specimens (
<bibRefCitation id="EFC6948FFFA33D0DDA4CFA60FF1FF9F0" author="Holm G." pageId="86" pageNumber="87" pagination="736 - 780" refId="ref47009" refString="Holm G. 1891. Om mynningen hos Lituites Breyn. Geologiska Foreningen i Stockholm Forhandlingar 13: 736 - 780. https: // doi. org / 10.1080 / 11035899109445850" type="journal article" year="1891">Holm 1891</bibRefCitation>
: pl. 1 figs 5–7, pl. 3 figs 3–4); from Lerkaka (Island of Öland,
<collectingCountry id="F340A9EEFFA33D0DDC95F984FBAFF9F3" box="[1003,1100,1543,1570]" name="Sweden" pageId="86" pageNumber="87">Sweden</collectingCountry>
), uppermost Red
<taxonomicName id="4C5792FDFFA33D0DDA60F98BFEDAF995" authority="Limestone" authorityName="Limestone" class="Cephalopoda" family="Lituitidae" genus="Lituites" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="86" pageNumber="87" phylum="Mollusca" rank="genus">
<emphasis id="B923356CFFA33D0DDA60F98BFA95F9F0" box="[1310,1398,1544,1569]" italics="true" pageId="86" pageNumber="87">Lituites</emphasis>
Limestone
</taxonomicName>
(Lasnamägi Regional Stage, late Darriwilian, Middle Ordovician).
</paragraph>
<paragraph id="8BE8E97EFFA33D0DDFC3F9E8FE49F954" blockId="86.[189,426,1643,1669]" box="[189,426,1643,1669]" pageId="86" pageNumber="87">
<heading id="D0A05E12FFA33D0DDFC3F9E8FE49F954" bold="true" box="[189,426,1643,1669]" fontSize="11" level="3" pageId="86" pageNumber="87" reason="3">
<emphasis id="B923356CFFA33D0DDFC3F9E8FE49F954" bold="true" box="[189,426,1643,1669]" pageId="86" pageNumber="87">Material examined</emphasis>
</heading>
</paragraph>
<paragraph id="8BE8E97EFFA33D0DDFC3F919FD68F92A" blockId="86.[189,1398,1690,1787]" pageId="86" pageNumber="87">
<materialsCitation id="3B3FE323FFA33D0DDFC3F919FD41F909" ID-GBIF-Occurrence="3700114327" collectionCode="MB" collectorName="Neben &amp; Krueger" country="Germany" county="Niederfinow" location="Niederfinow" municipality="Ordovician" pageId="86" pageNumber="87" specimenCode="MB.C.30552" specimenCount="1" stateProvince="Brandenburg">
<collectingCountry id="F340A9EEFFA33D0DDFC3F919FEB3F965" box="[189,336,1690,1716]" name="Germany" pageId="86" pageNumber="87">GERMANY</collectingCountry>
•
<specimenCount id="9D5122F7FFA33D0DDE0EF919FE2AF965" box="[368,457,1690,1716]" pageId="86" pageNumber="87" type="generic">1 spec.</specimenCount>
;
<collectingRegion id="4993279CFFA33D0DDEA6F919FD97F965" box="[472,628,1690,1716]" country="Germany" name="Brandenburg" pageId="86" pageNumber="87">Brandenburg</collectingRegion>
,
<collectingCounty id="628991F2FFA33D0DDDFDF919FCF9F965" box="[643,794,1690,1716]" pageId="86" pageNumber="87">Niederfinow</collectingCounty>
;
<geologicalTimeScale id="F97769D5FFA33D0DDC56F919FC4CF965" box="[808,943,1690,1716]" pageId="86" pageNumber="87">Ordovician</geologicalTimeScale>
,
<geologicalTimeScale id="F97769D5FFA33D0DDCC1F919FA91F965" box="[959,1394,1690,1716]" pageId="86" pageNumber="87">Upper Red Orthoceratite Limestone</geologicalTimeScale>
;
<collectorName id="26A28CA8FFA33D0DDFC3F93EFEE9F906" box="[189,266,1725,1751]" pageId="86" pageNumber="87">Neben</collectorName>
and
<collectorName id="26A28CA8FFA33D0DDE30F93DFE4DF909" box="[334,430,1726,1752]" pageId="86" pageNumber="87">Krueger</collectorName>
Coll.;
<specimenCode id="DBF14105FFA33D0DDD77F93EFD41F909" box="[521,674,1725,1752]" pageId="86" pageNumber="87">MB.C.30552</specimenCode>
</materialsCitation>
•
<materialsCitation id="3B3FE323FFA33D0DDDB8F93EFD64F92A" ID-GBIF-Occurrence="3700114375" collectionCode="MB" country="Germany" county="Schwedt" location="Schwedt" municipality="Ordovician" pageId="86" pageNumber="87" specimenCode="MB.C.30553" specimenCount="1" stateProvince="Brandenburg">
<specimenCount id="9D5122F7FFA33D0DDDB8F93EFCC2F909" box="[710,801,1725,1752]" pageId="86" pageNumber="87" type="generic">1 spec.</specimenCount>
;
<collectingRegion id="4993279CFFA33D0DDC4CF93EFC2DF906" box="[818,974,1725,1751]" country="Germany" name="Brandenburg" pageId="86" pageNumber="87">Brandenburg</collectingRegion>
,
<collectingCounty id="628991F2FFA33D0DDCA1F93EFBABF906" box="[991,1096,1725,1751]" pageId="86" pageNumber="87">Schwedt</collectingCounty>
;
<geologicalTimeScale id="F97769D5FFA33D0DDB27F93EFB03F906" box="[1113,1248,1725,1751]" pageId="86" pageNumber="87">Ordovician</geologicalTimeScale>
,
<geologicalTimeScale id="F97769D5FFA33D0DDB8FF93DFE3CF92B" pageId="86" pageNumber="87">Upper Red Orthoceratite Limestone</geologicalTimeScale>
;
<specimenCode id="DBF14105FFA33D0DDE94F963FD64F92A" box="[490,647,1760,1787]" pageId="86" pageNumber="87">MB.C.30553</specimenCode>
</materialsCitation>
.
</paragraph>
<paragraph id="8BE8E97EFFA33D0DDFC3F8A1FE91F874" blockId="86.[189,1399,1826,1957]" pageId="86" pageNumber="87">
<materialsCitation id="3B3FE323FFA33D0DDFC3F8A1FCCAF8B1" ID-GBIF-Occurrence="3700114354" collectionCode="MB" country="Poland" county="Gdansk County" location="Skowarcz" municipality="Skowarcz" pageId="86" pageNumber="87" specimenCode="MB.C.30554" specimenCount="1" stateProvince="West Pomerania">
<collectingCountry id="F340A9EEFFA33D0DDFC3F8A1FED7F8ED" box="[189,308,1826,1852]" name="Poland" pageId="86" pageNumber="87">POLAND</collectingCountry>
•
<specimenCount id="9D5122F7FFA33D0DDE2EF8A1FE44F8ED" box="[336,423,1826,1852]" pageId="86" pageNumber="87" type="generic">1 spec.</specimenCount>
;
<collectingRegion id="4993279CFFA33D0DDECAF8A1FD9BF8ED" box="[436,632,1826,1852]" country="Poland" name="Zachodniopomorskie" pageId="86" pageNumber="87">West Pomerania</collectingRegion>
,
<collectingMunicipality id="6B8C7304FFA33D0DDDFBF8A1FD1AF8ED" box="[645,761,1826,1852]" pageId="86" pageNumber="87">Skowarcz</collectingMunicipality>
(former Schönwarling),
<collectingCounty id="628991F2FFA33D0DDB5FF8A1FB3DF8ED" box="[1057,1246,1826,1852]" pageId="86" pageNumber="87">Gdańsk County</collectingCounty>
;
<geologicalTimeScale id="F97769D5FFA33D0DDB95F8A1FA91F8ED" box="[1259,1394,1826,1852]" pageId="86" pageNumber="87">Ordovician</geologicalTimeScale>
,
<geologicalTimeScale id="F97769D5FFA33D0DDFC3F8C5FD9EF88E" box="[189,637,1861,1888]" pageId="86" pageNumber="87">Upper Red Orthoceratite Limestone</geologicalTimeScale>
;
<specimenCode id="DBF14105FFA33D0DDDEEF8C6FCCAF8B1" box="[656,809,1861,1888]" pageId="86" pageNumber="87">MB.C.30554</specimenCode>
</materialsCitation>
•
<materialsCitation id="3B3FE323FFA33D0DDC2FF8C6FE8CF874" ID-GBIF-Occurrence="3700114393" collectionCode="MB" collectorName="Krause" country="Poland" county="Ustronie Morskie" location="Ustronie Morskie" municipality="Ordovician" pageId="86" pageNumber="87" specimenCode="MB.C.11632.1, MB.C.11632.3" specimenCount="2" stateProvince="West Pomerania">
<specimenCount id="9D5122F7FFA33D0DDC2FF8C6FC52F8B1" box="[849,945,1861,1888]" pageId="86" pageNumber="87">2 specs</specimenCount>
;
<collectingRegion id="4993279CFFA33D0DDCBAF8C5FB6DF88E" box="[964,1166,1861,1888]" country="Poland" name="Zachodniopomorskie" pageId="86" pageNumber="87">West Pomerania</collectingRegion>
,
<collectingCounty id="628991F2FFA33D0DDBDFF8C6FA94F88E" box="[1185,1399,1861,1887]" pageId="86" pageNumber="87">Ustronie Morskie</collectingCounty>
(former Henkengahen);
<geologicalTimeScale id="F97769D5FFA33D0DDEA6F8EBFDBCF853" box="[472,607,1896,1922]" pageId="86" pageNumber="87">Ordovician</geologicalTimeScale>
,
<geologicalTimeScale id="F97769D5FFA33D0DDD14F8EAFBF0F853" box="[618,1043,1896,1923]" pageId="86" pageNumber="87">Upper Red Orthoceratite Limestone</geologicalTimeScale>
;
<collectorName id="26A28CA8FFA33D0DDB60F8EAFB92F852" box="[1054,1137,1897,1923]" pageId="86" pageNumber="87">Krause</collectorName>
Coll.;
<specimenCode id="DBF14105FFA33D0DDBBFF8EBFA91F853" box="[1217,1394,1896,1922]" pageId="86" pageNumber="87">MB.C.11632.1</specimenCode>
,
<specimenCode id="DBF14105FFA33D0DDFC3F808FE8CF874" box="[189,367,1931,1957]" pageId="86" pageNumber="87">MB.C.11632.3</specimenCode>
</materialsCitation>
.
</paragraph>
<paragraph id="8BE8E97EFFA33D0DDFC3F84EFAAFF839" blockId="86.[189,1356,1997,2024]" box="[189,1356,1997,2024]" pageId="86" pageNumber="87">
COUNTRY UNKNOWN •
<materialsCitation id="3B3FE323FFA33D0DDD7DF84EFAABF839" ID-GBIF-Occurrence="3700114337" box="[515,1352,1997,2024]" collectionCode="MB" location="Ordovician" municipality="Upper Red Orthoceratite Limestone" pageId="86" pageNumber="87" specimenCode="MB.C.30555" specimenCount="1">
<specimenCount id="9D5122F7FFA33D0DDD7DF84EFDBBF836" box="[515,600,1997,2023]" pageId="86" pageNumber="87" type="generic">1 spec.</specimenCount>
;
<geologicalTimeScale id="F97769D5FFA33D0DDD1AF84EFD08F836" box="[612,747,1997,2023]" pageId="86" pageNumber="87">Ordovician</geologicalTimeScale>
,
<geologicalTimeScale id="F97769D5FFA33D0DDD89F84EFB43F836" box="[759,1184,1997,2023]" pageId="86" pageNumber="87">Upper Red Orthoceratite Limestone</geologicalTimeScale>
;
<specimenCode id="DBF14105FFA33D0DDBD5F84EFAABF839" box="[1195,1352,1997,2024]" pageId="86" pageNumber="87">MB.C.30555</specimenCode>
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C34DBAF5FFA23D03DFC3FE8BFB35FE5D" lastPageId="88" lastPageNumber="89" pageId="87" pageNumber="88" type="description">
<paragraph id="8BE8E97EFFA23D0CDFC3FE8BFEADFEF3" blockId="87.[189,334,264,290]" box="[189,334,264,290]" pageId="87" pageNumber="88">
<heading id="D0A05E12FFA23D0CDFC3FE8BFEADFEF3" bold="true" box="[189,334,264,290]" fontSize="11" level="3" pageId="87" pageNumber="88" reason="3">
<emphasis id="B923356CFFA23D0CDFC3FE8BFEADFEF3" bold="true" box="[189,334,264,290]" pageId="87" pageNumber="88">Description</emphasis>
</heading>
</paragraph>
<paragraph id="8BE8E97EFFA23D0CDFC3FEB4FCF0FD5F" blockId="87.[188,1400,311,654]" pageId="87" pageNumber="88">
Specimen MB.C.30552 (
<figureCitation id="136CF5FBFFA23D0CDEA1FEB4FDAAFE83" box="[479,585,311,338]" captionStart="Fig" captionStartId="87.[189,232,1778,1804]" captionTargetBox="[191,1388,809,1736]" captionTargetId="figure-175@87.[189,1399,793,1740]" captionTargetPageId="87" captionText="Fig. 66. Species of Trilacinoceras Sweet, 1958 from the Upper Grey Orthoceratite Limestone. A. Trilacinoceras discors (Holm, 1891), specimen MB.C.30552 (Neben &amp; Krueger Coll.) from Niederfinow(Brandenburg); previouslyfiguredby Neben&amp;Krueger(1971:pl. 21fig.1). B.Trilacinoceras discors (Holm, 1891), specimen MB.C.30553 from Schwedt (Brandenburg). C. Trilacinoceras knoefleri sp. nov., holotype MB.C.11658 (Knöfler Coll.) from Teschendorf near Löwenberg (Brandenburg). D. Trilacinoceras knoefleri sp. nov., paratype MB.C.30559 (Krueger Coll.) from Mukran (Sassnitz, Island of Rügen) (Mecklenburg-Vorpommern). Scale bar units = 1 mm." figureDoi="http://doi.org/10.5281/zenodo.6341416" httpUri="https://zenodo.org/record/6341416/files/figure.png" pageId="87" pageNumber="88">Fig. 66A</figureCitation>
) is a fragment of a coiled part (dm =
<quantity id="4CAF449BFFA23D0CDC89FEB4FBAFFE83" box="[1015,1100,311,338]" metricMagnitude="-2" metricUnit="m" metricValue="3.0" pageId="87" pageNumber="88" unit="mm" value="30.0">30 mm</quantity>
; 1.3 openly coiled whorls but the whorls get in contact just before uncoiling) and the almost straight backcoiled part (length =
<quantity id="4CAF449BFFA23D0CDFC3FEFEFEF5FE49" box="[189,278,381,408]" metricMagnitude="-2" metricUnit="m" metricValue="6.0" pageId="87" pageNumber="88" unit="mm" value="60.0">60 mm</quantity>
; wh =
<quantity id="4CAF449BFFA23D0CDE10FEFDFE24FE49" box="[366,455,382,408]" metricMagnitude="-2" metricUnit="m" metricValue="1.4" pageId="87" pageNumber="88" unit="mm" value="14.0">14 mm</quantity>
; EA ~ 4°) of a conch. The whorl profile is compressed (WWI increases from 0.83–0.90 during the backcoiled stage). The shell ornament of the coiled part consists of rhythmically strengthened growth lines (
<quantity id="4CAF449BFFA23D0CDE82FE47FD4BFE0F" box="[508,680,452,479]" metricMagnitude="-4" metricUnit="m" metricValue="1.25" metricValueMax="1.5" metricValueMin="1.0" pageId="87" pageNumber="88" unit="mm" value="0.125" valueMax="0.15" valueMin="0.1">0.10–0.15 mm</quantity>
apart), which ontogenetically transform into coarser lirae (up to
<quantity id="4CAF449BFFA23D0CDFA5FE64FED7FDD3" box="[219,308,487,514]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="87" pageNumber="88" unit="mm" value="0.5">0.5 mm</quantity>
in distance); narrow annuli (ca
<quantity id="4CAF449BFFA23D0CDDD6FE64FCE1FDD3" box="[680,770,487,514]" metricMagnitude="-3" metricUnit="m" metricValue="2.5" pageId="87" pageNumber="88" unit="mm" value="2.5">2.5 mm</quantity>
apart) appear after uncoiling. The ornament elements form a deep ventral sinus, a shallow to very shallow lateral sinus and a low dorsal projection; the ventral sinus is delineated by raised longitudinal lines in the coiled part, where the venter of the conch is slightly flattened. The ornament elements extend with a concavo-convex course; they are rectiradiate in the coiled part and prorsiradiate in the backcoiled part.
</paragraph>
<caption id="DF28B9F6FFA23D0CDFC3F971FBE0F831" ID-DOI="http://doi.org/10.5281/zenodo.6341416" ID-Zenodo-Dep="6341416" httpUri="https://zenodo.org/record/6341416/files/figure.png" pageId="87" pageNumber="88" startId="87.[189,232,1778,1804]" targetBox="[191,1388,809,1736]" targetPageId="87">
<paragraph id="8BE8E97EFFA23D0CDFC3F971FBE0F831" blockId="87.[189,1399,1778,2017]" pageId="87" pageNumber="88">
<emphasis id="B923356CFFA23D0CDFC3F971FEC0F8DD" bold="true" box="[189,291,1778,1804]" pageId="87" pageNumber="88">Fig. 66.</emphasis>
Species of
<taxonomicName id="4C5792FDFFA23D0CDEBAF970FCFAF8DC" authority="Sweet, 1958" authorityName="Sweet" authorityYear="1958" box="[452,793,1778,1805]" class="Cephalopoda" family="Lituitidae" genus="Trilacinoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="87" pageNumber="88" phylum="Mollusca" rank="genus">
<emphasis id="B923356CFFA23D0CDEBAF970FD8CF8DC" box="[452,623,1779,1805]" italics="true" pageId="87" pageNumber="88">Trilacinoceras</emphasis>
<bibRefCitation id="EFC6948FFFA23D0CDD01F970FCFAF8DC" author="Sweet W. C." box="[639,793,1778,1805]" pageId="87" pageNumber="88" pagination="1 - 176" refId="ref49478" refString="Sweet W. C. 1958. The Middle Ordovician of the Oslo region, Norway. 10. Nautiloid cephalopods. Norsk Geologisk Tidsskrift 38: 1 - 176." type="journal article" year="1958">Sweet, 1958</bibRefCitation>
</taxonomicName>
from the Upper Grey Orthoceratite Limestone.
<emphasis id="B923356CFFA23D0CDFC3F895FF31F8E1" bold="true" box="[189,210,1814,1840]" pageId="87" pageNumber="88">A</emphasis>
.
<taxonomicName id="4C5792FDFFA23D0CDF97F895FD50F8E1" authority="(Holm, 1891)" baseAuthorityName="Holm" baseAuthorityYear="1891" box="[233,691,1814,1840]" class="Cephalopoda" family="Lituitidae" genus="Trilacinoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="87" pageNumber="88" phylum="Mollusca" rank="species" species="discors">
<emphasis id="B923356CFFA23D0CDF97F895FE1AF8E1" box="[233,505,1814,1840]" italics="true" pageId="87" pageNumber="88">Trilacinoceras discors</emphasis>
(
<bibRefCitation id="EFC6948FFFA23D0CDD6EF895FD49F8E1" author="Holm G." box="[528,682,1814,1840]" pageId="87" pageNumber="88" pagination="736 - 780" refId="ref47009" refString="Holm G. 1891. Om mynningen hos Lituites Breyn. Geologiska Foreningen i Stockholm Forhandlingar 13: 736 - 780. https: // doi. org / 10.1080 / 11035899109445850" type="journal article" year="1891">Holm, 1891</bibRefCitation>
)
</taxonomicName>
, specimen MB.C.30552 (Neben &amp; Krueger Coll.) from Niederfinow(Brandenburg); previously figured by
<bibRefCitation id="EFC6948FFFA23D0CDC7FF8BAFBF4F882" author="Neben W. &amp; Krueger H. - H." box="[769,1047,1849,1876]" pageId="87" pageNumber="88" pagination="1 - 50" refId="ref48602" refString="Neben W. &amp; Krueger H. - H. 1971. Fossilien ordovizischer Geschiebe. Staringia 1: 1 - 50." type="journal article" year="1971">Neben&amp;Krueger(1971</bibRefCitation>
:pl. 21fig.1).
<emphasis id="B923356CFFA23D0CDBD3F8BAFB22F882" bold="true" box="[1197,1217,1849,1875]" pageId="87" pageNumber="88">B</emphasis>
.
<taxonomicName id="4C5792FDFFA23D0CDBB5F8BAFE5AF8A7" authority="(Holm, 1891)" baseAuthorityName="Holm" baseAuthorityYear="1891" class="Cephalopoda" family="Lituitidae" genus="Trilacinoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="87" pageNumber="88" phylum="Mollusca" rank="species" species="discors">
<emphasis id="B923356CFFA23D0CDBB5F8BAFEF1F8A7" italics="true" pageId="87" pageNumber="88">Trilacinoceras discors</emphasis>
(
<bibRefCitation id="EFC6948FFFA23D0CDE5EF8DFFE53F8A7" author="Holm G." box="[288,432,1884,1910]" pageId="87" pageNumber="88" pagination="736 - 780" refId="ref47009" refString="Holm G. 1891. Om mynningen hos Lituites Breyn. Geologiska Foreningen i Stockholm Forhandlingar 13: 736 - 780. https: // doi. org / 10.1080 / 11035899109445850" type="journal article" year="1891">Holm, 1891</bibRefCitation>
)
</taxonomicName>
, specimen MB.C.30553 from Schwedt (Brandenburg).
<emphasis id="B923356CFFA23D0CDB45F8DFFBB3F8A7" bold="true" box="[1083,1104,1884,1910]" pageId="87" pageNumber="88">C</emphasis>
.
<taxonomicName id="4C5792FDFFA23D0CDB21F8DFFA94F8A7" authority="Aubrechtová &amp; Korn, 2022" authorityName="Aubrechtová &amp; Korn" authorityYear="2022" box="[1119,1399,1884,1910]" class="Cephalopoda" family="Lituitidae" genus="Trilacinoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="87" pageNumber="88" phylum="Mollusca" rank="species" species="knoefleri" status="sp. nov.">
<emphasis id="B923356CFFA23D0CDB21F8DFFA94F8A7" box="[1119,1399,1884,1910]" italics="true" pageId="87" pageNumber="88">Trilacinoceras knoefleri</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2108817FFA23D0CDFC3F803FEC3F84B" box="[189,288,1920,1946]" pageId="87" pageNumber="88" rank="species">sp. nov.</taxonomicNameLabel>
, holotype MB.C.11658 (Knöfler Coll.) from Teschendorf near Löwenberg (Brandenburg).
<emphasis id="B923356CFFA23D0CDFC3F820FF31F86C" bold="true" box="[189,210,1955,1981]" pageId="87" pageNumber="88">D</emphasis>
.
<taxonomicName id="4C5792FDFFA23D0CDF9BF820FDE0F86C" authority="Aubrechtová &amp; Korn, 2022" authorityName="Aubrechtová &amp; Korn" authorityYear="2022" box="[229,515,1955,1981]" class="Cephalopoda" family="Lituitidae" genus="Trilacinoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="87" pageNumber="88" phylum="Mollusca" rank="species" species="knoefleri" status="sp. nov.">
<emphasis id="B923356CFFA23D0CDF9BF820FDE0F86C" box="[229,515,1955,1981]" italics="true" pageId="87" pageNumber="88">Trilacinoceras knoefleri</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2108817FFA23D0CDD70F820FD8CF86C" box="[526,623,1955,1981]" pageId="87" pageNumber="88" rank="species">sp. nov.</taxonomicNameLabel>
, paratype MB.C.30559 (Krueger Coll.) from Mukran (Sassnitz, Island of Rügen) (Mecklenburg-Vorpommern). Scale bar units = 1 mm.
</paragraph>
</caption>
<paragraph id="8BE8E97EFFAD3D03DFC3FE8AFB35FE5D" blockId="88.[188,1399,265,397]" pageId="88" pageNumber="89">
Specimen MB.C.30553 (
<figureCitation id="136CF5FBFFAD3D03DE95FE8AFDBAFEF5" box="[491,601,265,292]" captionStart="Fig" captionStartId="87.[189,232,1778,1804]" captionTargetBox="[191,1388,809,1736]" captionTargetId="figure-175@87.[189,1399,793,1740]" captionTargetPageId="87" captionText="Fig. 66. Species of Trilacinoceras Sweet, 1958 from the Upper Grey Orthoceratite Limestone. A. Trilacinoceras discors (Holm, 1891), specimen MB.C.30552 (Neben &amp; Krueger Coll.) from Niederfinow(Brandenburg); previouslyfiguredby Neben&amp;Krueger(1971:pl. 21fig.1). B.Trilacinoceras discors (Holm, 1891), specimen MB.C.30553 from Schwedt (Brandenburg). C. Trilacinoceras knoefleri sp. nov., holotype MB.C.11658 (Knöfler Coll.) from Teschendorf near Löwenberg (Brandenburg). D. Trilacinoceras knoefleri sp. nov., paratype MB.C.30559 (Krueger Coll.) from Mukran (Sassnitz, Island of Rügen) (Mecklenburg-Vorpommern). Scale bar units = 1 mm." figureDoi="http://doi.org/10.5281/zenodo.6341416" httpUri="https://zenodo.org/record/6341416/files/figure.png" pageId="88" pageNumber="89">Fig. 66B</figureCitation>
) is a fragment of a coiled conch,
<quantity id="4CAF449BFFAD3D03DB79FE8AFBBCFEF2" box="[1031,1119,265,292]" metricMagnitude="-2" metricUnit="m" metricValue="2.5" pageId="88" pageNumber="89" unit="mm" value="25.0">25 mm</quantity>
in diameter. The shell ornament consists of growth lines, which ontogenetically transform into transverse, slightly asymmetric lirae (
<quantity id="4CAF449BFFAD3D03DE7CFECCFE82FEBB" box="[258,353,335,362]" metricMagnitude="-4" metricUnit="m" metricValue="8.0" pageId="88" pageNumber="89" unit="mm" value="0.8">0.8 mm</quantity>
distance) with fine growth lines in between them. The ornament elements form a very shallow lateral sinus and a deep ventral sinus; a low subangular ridge is present ventrally.
</paragraph>
</subSubSection>
<subSubSection id="C34DBAF5FFAD3D03DFC3FE37FD60FD95" pageId="88" pageNumber="89" type="discussion">
<paragraph id="8BE8E97EFFAD3D03DFC3FE37FECCFE1F" blockId="88.[189,303,436,462]" box="[189,303,436,462]" pageId="88" pageNumber="89">
<heading id="D0A05E12FFAD3D03DFC3FE37FECCFE1F" bold="true" box="[189,303,436,462]" fontSize="11" level="3" pageId="88" pageNumber="89" reason="3">
<emphasis id="B923356CFFAD3D03DFC3FE37FECCFE1F" bold="true" box="[189,303,436,462]" pageId="88" pageNumber="89">Remarks</emphasis>
</heading>
</paragraph>
<paragraph id="8BE8E97EFFAD3D03DFC3FE61FD60FD95" blockId="88.[189,1399,482,580]" pageId="88" pageNumber="89">
<taxonomicName id="4C5792FDFFAD3D03DFC3FE61FE28FE2D" baseAuthorityName="Holm" baseAuthorityYear="1891" box="[189,459,482,508]" class="Cephalopoda" family="Lituitidae" genus="Trilacinoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="88" pageNumber="89" phylum="Mollusca" rank="species" species="discors">
<emphasis id="B923356CFFAD3D03DFC3FE61FE28FE2D" box="[189,459,482,508]" italics="true" pageId="88" pageNumber="89">Trilacinoceras discors</emphasis>
</taxonomicName>
is most similar to
<taxonomicName id="4C5792FDFFAD3D03DDBDFE60FC4BFE2D" box="[707,936,483,508]" class="Cephalopoda" family="Lituitidae" genus="Lituites" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="88" pageNumber="89" phylum="Mollusca" rank="species" species="toernquisti">
<emphasis id="B923356CFFAD3D03DDBDFE60FC4BFE2D" box="[707,936,483,508]" italics="true" pageId="88" pageNumber="89">Lituites toernquisti</emphasis>
</taxonomicName>
(described above), but differs in the possession of a three-lappeted aperture (instead of five-lappeted) and in being usually larger in conch dimensions (
<bibRefCitation id="EFC6948FFFAD3D03DE2CFDAAFE3FFD92" author="Holm G." box="[338,476,553,579]" pageId="88" pageNumber="89" pagination="736 - 780" refId="ref47009" refString="Holm G. 1891. Om mynningen hos Lituites Breyn. Geologiska Foreningen i Stockholm Forhandlingar 13: 736 - 780. https: // doi. org / 10.1080 / 11035899109445850" type="journal article" year="1891">Holm 1891</bibRefCitation>
;
<bibRefCitation id="EFC6948FFFAD3D03DE96FDAAFD95FD95" author="Sweet W. C." box="[488,630,553,580]" pageId="88" pageNumber="89" pagination="1 - 176" refId="ref49478" refString="Sweet W. C. 1958. The Middle Ordovician of the Oslo region, Norway. 10. Nautiloid cephalopods. Norsk Geologisk Tidsskrift 38: 1 - 176." type="journal article" year="1958">Sweet 1958</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C34DBAF5FFAD3D03DFC3FDE9FCB0FD2B" pageId="88" pageNumber="89" type="materials_examined">
<paragraph id="8BE8E97EFFAD3D03DFC3FDE9FD21FD55" blockId="88.[189,706,618,644]" box="[189,706,618,644]" pageId="88" pageNumber="89">
<heading id="D0A05E12FFAD3D03DFC3FDE9FD21FD55" bold="true" box="[189,706,618,644]" fontSize="11" level="3" pageId="88" pageNumber="89" reason="3">
<emphasis id="B923356CFFAD3D03DFC3FDE9FD21FD55" bold="true" box="[189,706,618,644]" pageId="88" pageNumber="89">Geographic and stratigraphic occurrence</emphasis>
</heading>
</paragraph>
<paragraph id="8BE8E97EFFAD3D03DFC3FD1AFCB0FD2B" blockId="88.[189,1400,665,762]" pageId="88" pageNumber="89">
Baltoscandia (in situ) and northern
<collectingCountry id="F340A9EEFFAD3D03DD19FD1AFD37FD62" box="[615,724,665,691]" name="Germany" pageId="88" pageNumber="89">Germany</collectingCountry>
and
<collectingCountry id="F340A9EEFFAD3D03DC6CFD1AFC80FD62" box="[786,867,665,691]" name="Poland" pageId="88" pageNumber="89">Poland</collectingCountry>
(in erratics within Pleistocene gravels); late Aseri to Lasnamägi regional stages (late Darriwilian Middle Ordovician), possibly also early Kukruse Regional Stage (early Sandbian, early Late Ordovician).
</paragraph>
</subSubSection>
<subSubSection id="C34DBAF5FFAD3D03DFC3FCA2FCC4FC19" pageId="88" pageNumber="89" type="discussion">
<paragraph id="8BE8E97EFFAD3D03DFC3FCA2FCC4FC19" blockId="88.[189,1401,801,968]" pageId="88" pageNumber="89">
<taxonomicName id="4C5792FDFFAD3D03DFC3FCA2FE26FCEA" baseAuthorityName="Holm" baseAuthorityYear="1891" box="[189,453,801,827]" class="Cephalopoda" family="Lituitidae" genus="Trilacinoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="88" pageNumber="89" phylum="Mollusca" rank="species" species="discors">
<emphasis id="B923356CFFAD3D03DFC3FCA2FE26FCEA" box="[189,453,801,827]" italics="true" pageId="88" pageNumber="89">Trilacinoceras discors</emphasis>
</taxonomicName>
has a relatively wide stratigraphic and palaeogeographic range of occurrence. It is characteristic for the early Lasnamägian
<taxonomicName id="4C5792FDFFAD3D03DDC4FCC6FC50FC8F" authority="Zone" authorityName="Zone" box="[698,947,836,862]" class="Cephalopoda" family="Lituitidae" genus="Lituites" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthocerida" pageId="88" pageNumber="89" phylum="Mollusca" rank="species" species="discors">
<emphasis id="B923356CFFAD3D03DDC4FCC6FC8CFC8F" box="[698,879,836,862]" italics="true" pageId="88" pageNumber="89">Lituites discors</emphasis>
Zone
</taxonomicName>
of Baltoscandia (
<bibRefCitation id="EFC6948FFFAD3D03DBFDFCC7FF1FFC53" author="Jaanusson V. &amp; Mutvei H." pageId="88" pageNumber="89" pagination="7 - 39" refId="ref47288" refString="Jaanusson V. &amp; Mutvei H. 1953. Stratigraphie und Lithologie der unterordovizischen Platyurus - Stufe im Siljan-Gebiet, Dalarna. Bulletin of the Geological Institutions of the University of Uppsala 35: 7 - 39." type="journal article" year="1953">Jaanusson &amp; Mutvei 1953</bibRefCitation>
;
<bibRefCitation id="EFC6948FFFAD3D03DE74FCEBFE2BFC50" author="Jaanusson V." box="[266,456,871,898]" pageId="88" pageNumber="89" pagination="207 - 288" refId="ref47097" refString="Jaanusson V. 1960. The Viruan (Middle Ordovician) of Oland. Bulletin of the Geological Institutions of the University of Uppsala 38: 207 - 288." type="journal article" year="1960">Jaanusson 1960</bibRefCitation>
;
<bibRefCitation id="EFC6948FFFAD3D03DEA8FCEBFD4AFC50" author="Evans D. H. &amp; King A. H. &amp; Histon K. &amp; Cichowolski M." box="[470,681,871,898]" pageId="88" pageNumber="89" pagination="7 - 22" refId="ref46553" refString="Evans D. H., King A. H., Histon K. &amp; Cichowolski M. 2014. Nautiloid cephalopods - a review of their use and potential in biostratigraphy. Denisia 32: 7 - 22." type="journal article" year="2014">
Evans
<emphasis id="B923356CFFAD3D03DD59FCEBFD80FC50" box="[551,611,871,897]" italics="true" pageId="88" pageNumber="89">et al.</emphasis>
2014
</bibRefCitation>
) but occurs also in the late Lasnamägian rocks of
<collectingCountry id="F340A9EEFFAD3D03DA77FCE4FA95FC50" box="[1289,1398,871,897]" name="Germany" pageId="88" pageNumber="89">Germany</collectingCountry>
(Pleistocene erratics) and possibly in the even younger, Uhakuan, strata of peri-Gondwana (
<bibRefCitation id="EFC6948FFFAD3D03DA48FC09FE24FC19" author="Sa A. A. &amp; Gutierrez-Marco J. C." pageId="88" pageNumber="89" pagination="9 - 12" refId="ref49303" refString="Sa A. A. &amp; Gutierrez-Marco J. C. 2009. Middle Ordovician cephalopods from the Valongo Formation, northern Portugal. Geogaceta 47: 9 - 12." type="journal article" year="2009">Sá &amp; Gutiérrez-Marco 2009</bibRefCitation>
;
<bibRefCitation id="EFC6948FFFAD3D03DEACFC2EFCF8FC19" author="Aubrechtova M. &amp; Turek V." box="[466,795,941,968]" pageId="88" pageNumber="89" pagination="401 - 417" refId="ref45485" refString="Aubrechtova M. &amp; Turek V. 2018. Lituitid cephalopods from the Middle Ordovician of Bohemia and their paleobiogeographic affinities. Bulletin of Geosciences 93: 401 - 417. https: // doi. org / 10.3140 / bull. geosci. 1707" type="journal article" year="2018">Aubrechtová &amp; Turek 2018</bibRefCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>
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