420 lines
52 KiB
XML
420 lines
52 KiB
XML
<document id="CDF355720EAD36EA220673E4CBDBADE0" ID-DOI="10.11646/zootaxa.3076.1.1" ID-ISSN="11755334" ID-Zenodo-Dep="5243500" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1629749671195" checkinUser="felipe" docAuthor="Hansen, Jesper & Holmer, Lars E." docDate="2011" docId="A87D878BFFABFFA40BA8F908FD6EFC74" docLanguage="en" docName="zt03076p122.pdf" docOrigin="Zootaxa 3076 (1)" docSource="https://biotaxa.org/Zootaxa/article/view/zootaxa.3076.1.1" docStyle="DocumentStyle:D239614CE4198176A422035174489AB1.4:Zootaxa.2009-2012.monograph" docStyleId="D239614CE4198176A422035174489AB1" docStyleName="Zootaxa.2009-2012.monograph" docStyleVersion="4" docTitle="Archaeorthis groenlandica Poulsen 1937" docType="treatment" docVersion="3" lastPageNumber="96" masterDocId="5444FFF3FFF6FFFB0B3FFFF1F866FF98" masterDocTitle="Taxonomy and biostratigraphy of Ordovician brachiopods from northeastern Ny Friesland, Spitsbergen 3076" masterLastPageNumber="122" masterPageNumber="1" pageNumber="94" updateTime="1699105918309" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:title id="CEA0D21990B06A7DC8A67BAFB451E6E7">Taxonomy and biostratigraphy of Ordovician brachiopods from northeastern Ny Friesland, Spitsbergen 3076</mods:title>
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<mods:namePart id="5AEA0D426B9F2984DDBEE76963BFF3A1">Hansen, Jesper</mods:namePart>
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<mods:namePart id="CC299E272F7936FAD05A975FE0F36AC2">Holmer, Lars E.</mods:namePart>
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<mods:title id="FE6139B3CB079F60AE141E6A4526EE4A">Zootaxa</mods:title>
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<mods:part id="4550DDC92756166417742C7403D079BB">
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<mods:date id="CFAF8D1D75601F34B629CBB6D488D5DC">2011</mods:date>
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<mods:number id="0E1363BB264CEAD868179901462E257B">2011-10-28</mods:number>
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<mods:identifier id="0C5D584B8B93561B6B50D88E1B0D0350" type="DOI">10.11646/zootaxa.3076.1.1</mods:identifier>
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<treatment id="A87D878BFFABFFA40BA8F908FD6EFC74" LSID="urn:lsid:plazi:treatment:A87D878BFFABFFA40BA8F908FD6EFC74" httpUri="http://treatment.plazi.org/id/A87D878BFFABFFA40BA8F908FD6EFC74" lastPageId="95" lastPageNumber="96" pageId="93" pageNumber="94">
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<subSubSection id="68CE6516FFABFFA60BA8F908FAC6F8AC" pageId="93" pageNumber="94" type="nomenclature">
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<paragraph id="206B369DFFABFFA60BA8F908FAEBF88B" blockId="93.[151,672,1785,1844]" box="[151,653,1785,1811]" pageId="93" pageNumber="94">
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<heading id="7B2381F1FFABFFA60BA8F908FAEBF88B" bold="true" box="[151,653,1785,1811]" fontSize="11" level="1" pageId="93" pageNumber="94" reason="1">
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<taxonomicName id="E7D44D1EFFABFFA60BA8F908FAEBF88B" authority="Poulsen, 1937" authorityName="Poulsen" authorityYear="1937" box="[151,653,1785,1811]" class="Rhynchonellata" family="Orthidae" genus="Archaeorthis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthida" pageId="93" pageNumber="94" phylum="Brachiopoda" rank="species" species="groenlandica">
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<emphasis id="12A0EA8FFFABFFA60BA8F908FAEBF88B" bold="true" box="[151,653,1785,1811]" pageId="93" pageNumber="94">
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<emphasis id="12A0EA8FFFABFFA60BA8F908F9BDF88B" bold="true" box="[151,475,1785,1811]" italics="true" pageId="93" pageNumber="94">Archaeorthis groenlandica</emphasis>
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<bibRefCitation id="44454B6CFFABFFA60ADCF908FAEBF88B" author="Poulsen, C." box="[483,653,1785,1811]" pageId="93" pageNumber="94" pagination="1 - 72" refId="ref78154" refString="Poulsen, C. (1937) On the Lower Ordovician faunas of East Greenland. Meddelelser om Gronland, 119 (3), 1 - 72, 8 pls." type="journal article" year="1937">Poulsen, 1937</bibRefCitation>
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||
</emphasis>
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||
</taxonomicName>
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||
</heading>
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</paragraph>
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<paragraph id="206B369DFFABFFA60BA8F8EDFAC6F8AC" blockId="93.[151,672,1785,1844]" box="[151,672,1820,1844]" pageId="93" pageNumber="94">
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Pl. 24, Figs. 14–15; Pl. 25,
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<figureCitation id="B8EF2A18FFABFFA60AF7F8EDFA77F8AC" box="[456,529,1820,1844]" captionStart="FIGURE 1" captionStartId="6.[151,244,1307,1328]" captionTargetBox="[152,1436,331,1294]" captionTargetId="figure-359@6.[151,1436,331,1295]" captionTargetPageId="6" captionText="FIGURE 1 Locality maps of the Svalbard Archipelago. a) Locations of sites yielding Lower Palaeozoic fossils mentioned in this paper. b) Geological map of the Basissletta plain, northeastern Ny Friesland; redrawn from Fortey & Bruton (1973). The base map is based on aerial photos made available by the Norwegian Polar Institute and on field observations made by the authors in 2008." figureDoi="http://doi.org/10.5281/zenodo.5243502" httpUri="https://zenodo.org/record/5243502/files/figure.png" pageId="93" pageNumber="94">Figs. 1</figureCitation>
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–6;
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<tableCitation id="6D560326FFABFFA60900F8EDFAC6F8AC" box="[575,672,1820,1844]" captionStart="TABLE 32" captionStartId="94.[151,232,1200,1221]" captionText="TABLE 32. Shell measurements of Archaeorthis groenlandica Poulsen, 1937." pageId="93" pageNumber="94">Table 32</tableCitation>
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="68CE6516FFABFFA60BA8F895FB1BF82C" pageId="93" pageNumber="94" type="description">
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||
<paragraph id="206B369DFFABFFA60BA8F895FBC5F8E1" blockId="93.[151,931,1892,1972]" box="[151,931,1892,1913]" pageId="93" pageNumber="94">
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||
1937
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<taxonomicName id="E7D44D1EFFABFFA60BCAF895F990F8E1" authority="Hansen & Holmer, 2011" authorityName="Hansen & Holmer" authorityYear="2011" box="[245,502,1892,1913]" class="Rhynchonellata" family="Orthidae" genus="Archaeorthis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthida" pageId="93" pageNumber="94" phylum="Brachiopoda" rank="species" species="groenlandica" status="sp. nov.">
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<emphasis id="12A0EA8FFFABFFA60BCAF895F990F8E1" box="[245,502,1892,1913]" italics="true" pageId="93" pageNumber="94">Archaeorthis groenlandica</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="099357F4FFABFFA60AC3F895FA56F8E1" box="[508,560,1892,1913]" pageId="93" pageNumber="94" rank="species">n. sp.</taxonomicNameLabel>
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―Poulsen, pp. 42–43, Pl. 4,
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<figureCitation id="B8EF2A18FFABFFA6087CF895FBF8F8E1" box="[835,926,1892,1913]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStart-3="FIGURE 4" captionStartId-0="6.[151,244,1307,1328]" captionStartId-1="9.[151,244,1919,1940]" captionStartId-2="10.[151,244,1646,1667]" captionStartId-3="80.[151,244,1624,1645]" captionTargetBox-0="[152,1436,331,1294]" captionTargetBox-1="[174,1423,157,1906]" captionTargetBox-2="[173,1417,393,1624]" captionTargetId-0="figure-359@6.[151,1436,331,1295]" captionTargetId-1="figure-80@9.[174,1426,157,1906]" captionTargetId-2="figure-209@10.[173,1417,374,1632]" captionTargetPageId-0="6" captionTargetPageId-1="9" captionTargetPageId-2="10" captionText-0="FIGURE 1 Locality maps of the Svalbard Archipelago. a) Locations of sites yielding Lower Palaeozoic fossils mentioned in this paper. b) Geological map of the Basissletta plain, northeastern Ny Friesland; redrawn from Fortey & Bruton (1973). The base map is based on aerial photos made available by the Norwegian Polar Institute and on field observations made by the authors in 2008." captionText-1="FIGURE 2 Stratigraphical ranges and diversity of brachiopod species at Basissletta, Spitsbergen, and relative sea levels and percentages of linguliform brachiopods in the total brachiopod fauna. White shading in the last graph indicates stratigraphical intervals without brachiopods. Thicknesses of units are according to Fortey & Bruton (1973). Lithological log and sea level curve are from Hansen & Holmer (2010)." captionText-2="FIGURE 3 Rose histograms for the umbonal orientation of the large brachiopod Ectenoglossa? oviforma sp. nov. found in the Olenidsletta Member, Valhallfonna Formation. a) Histogram of 58 specimens from 88 m above the base of the member. b) Histogram of 13 specimens from 94 m above the base of the member." captionText-3="FIGURE 4 External morphology of ventral valve of Dictyonites mugilis." figureDoi-0="http://doi.org/10.5281/zenodo.5243502" figureDoi-1="http://doi.org/10.5281/zenodo.5243504" figureDoi-2="http://doi.org/10.5281/zenodo.5243508" httpUri-0="https://zenodo.org/record/5243502/files/figure.png" httpUri-1="https://zenodo.org/record/5243504/files/figure.png" httpUri-2="https://zenodo.org/record/5243508/files/figure.png" pageId="93" pageNumber="94">Figs. 1–4</figureCitation>
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.
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</paragraph>
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||
<paragraph id="206B369DFFABFFA60BA8F870FB7FF80E" blockId="93.[151,931,1892,1972]" box="[151,793,1921,1943]" pageId="93" pageNumber="94">
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1958
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<taxonomicName id="E7D44D1EFFABFFA60BCAF873FA2EF80E" authority="Poulsen" authorityName="Poulsen" authorityYear="1937" box="[245,584,1921,1943]" class="Rhynchonellata" family="Orthidae" genus="Archaeorthis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthida" pageId="93" pageNumber="94" phylum="Brachiopoda" rank="species" species="groenlandica">
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||
<emphasis id="12A0EA8FFFABFFA60BCAF873F990F80F" box="[245,502,1922,1943]" italics="true" pageId="93" pageNumber="94">Archaeorthis groenlandica</emphasis>
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Poulsen
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</taxonomicName>
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―Hallam, pp. 73–74.
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</paragraph>
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<paragraph id="206B369DFFABFFA60BA8F86EFB1BF82C" blockId="93.[151,931,1892,1972]" box="[151,893,1950,1972]" pageId="93" pageNumber="94">
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1960
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<taxonomicName id="E7D44D1EFFABFFA60BCAF86EFA00F82C" authority="Poulsen" authorityName="Poulsen" authorityYear="1937" box="[245,614,1951,1972]" class="Rhynchonellata" family="Orthidae" genus="Archaeorthis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthida" pageId="93" pageNumber="94" phylum="Brachiopoda" rank="species" species="groenlandica">
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<emphasis id="12A0EA8FFFABFFA60BCAF86EF917F82C" box="[245,369,1951,1972]" italics="true" pageId="93" pageNumber="94">Archaeorthis</emphasis>
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cf.
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<emphasis id="12A0EA8FFFABFFA60AA9F86EFA73F82C" box="[406,533,1951,1972]" italics="true" pageId="93" pageNumber="94">groenlandica</emphasis>
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Poulsen
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</taxonomicName>
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―Gobbett & Wilson, p. 451.
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="68CE6516FFA8FFA50BA8FF69FD01FE34" pageId="94" pageNumber="95" type="materials_examined">
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||
<paragraph id="206B369DFFA8FFA50BA8FF69F9E4FF4C" blockId="94.[151,1436,151,1148]" pageId="94" pageNumber="95">
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||
<materialsCitation id="90BC3CC0FFA8FFA50BA8FF69F9E4FF4C" collectionCode="MGUH" country="Greenland" county="East" location="Cape Weber Formation" municipality="Devon Canyon" pageId="94" pageNumber="95" specimenCode="MGUH 3666" specimenCount="1" typeStatus="holotype">
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||
<emphasis id="12A0EA8FFFA8FFA50BA8FF69F96DFF28" bold="true" box="[151,267,152,176]" inLineHeading="true" pageId="94" pageNumber="95" reason="1">
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||
<typeStatus id="FF6F883FFFA8FFA50BA8FF69F960FF28" box="[151,262,152,176]" pageId="94" pageNumber="95" type="holotype">Holotype</typeStatus>
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.
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</emphasis>
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Ventral valve (
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<specimenCode id="70729EE6FFA8FFA50A87FF66FA32FF37" box="[440,596,151,175]" collectionCode="MGUH" country="Denmark" httpUri="http://grbio.org/cool/c1ae-v64p" name="Museum Geologicum Universitatis Hafniensis" pageId="94" pageNumber="95">MGUH 3666</specimenCode>
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);
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<location id="250B6046FFA8FFA50955FF66FB16FF37" LSID="urn:lsid:plazi:treatment:A87D878BFFABFFA40BA8F908FD6EFC74:250B6046FFA8FFA50955FF66FB16FF37" box="[618,880,151,175]" country="Greenland" county="East" municipality="Devon Canyon" name="Cape Weber Formation" pageId="94" pageNumber="95">Cape Weber Formation</location>
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(
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<location id="250B6046FFA8FFA508BEFF66FC31FF37" LSID="urn:lsid:plazi:treatment:A87D878BFFABFFA40BA8F908FD6EFC74:250B6046FFA8FFA508BEFF66FC31FF37" box="[897,1111,151,175]" country="Greenland" county="East" municipality="Devon Canyon" name="Lower Ordovician" pageId="94" pageNumber="95">Lower Ordovician</location>
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),
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<quantity id="E72C9B78FFA8FFA50F54FF66FCC3FF37" box="[1131,1189,151,175]" metricMagnitude="3" metricUnit="m" metricValue="1.0" pageId="94" pageNumber="95" unit="km" value="1.0">1 km</quantity>
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||
south of
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||
<collectingMunicipality id="C00FACE7FFA8FFA50E2DFF69F8A2FF4C" pageId="94" pageNumber="95">Devon Canyon</collectingMunicipality>
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,
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<collectingCounty id="C90A4E11FFA8FFA50BF0FF4DF899FF4B" box="[207,255,188,211]" pageId="94" pageNumber="95">East</collectingCounty>
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<collectingCountry id="58C3760DFFA8FFA50A39FF4DF918FF4C" box="[262,382,188,212]" name="Greenland" pageId="94" pageNumber="95">Greenland</collectingCountry>
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.
|
||
</materialsCitation>
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</paragraph>
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<paragraph id="206B369DFFA8FFA50BF8FF2EFD01FE34" blockId="94.[151,1436,151,1148]" pageId="94" pageNumber="95">
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<emphasis id="12A0EA8FFFA8FFA50BF8FF2EF950FF60" bold="true" box="[199,310,223,248]" inLineHeading="true" pageId="94" pageNumber="95" reason="1">Material.</emphasis>
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||
Holo- and
|
||
<typeStatus id="FF6F883FFFA8FFA50AF9FF11FA57FF60" box="[454,561,224,248]" pageId="94" pageNumber="95" type="paratype">paratypes</typeStatus>
|
||
from
|
||
<collectingCountry id="58C3760DFFA8FFA509BEFF2EFA93FF6F" box="[641,757,223,247]" name="Greenland" pageId="94" pageNumber="95">Greenland</collectingCountry>
|
||
(
|
||
<collectionCode id="46C5AE58FFA8FFA50835FF2EFB07FF6F" box="[778,865,223,247]" country="Denmark" httpUri="http://grbio.org/cool/c1ae-v64p" name="Museum Geologicum Universitatis Hafniensis" pageId="94" pageNumber="95">MGUH</collectionCode>
|
||
3666–3669) and the other specimens on which
|
||
<bibRefCitation id="44454B6CFFA8FFA50BA8FEF5F927FE84" author="Poulsen, C." box="[151,321,260,284]" pageId="94" pageNumber="95" pagination="1 - 72" refId="ref78154" refString="Poulsen, C. (1937) On the Lower Ordovician faunas of East Greenland. Meddelelser om Gronland, 119 (3), 1 - 72, 8 pls." type="journal article" year="1937">Poulsen (1937)</bibRefCitation>
|
||
based his study; 1195 specimens from Spitsbergen, including specimens A46819–21, A46823–24,
|
||
<accessionNumber id="3F87AB7EFFA8FFA50BA8FED6F895FEA7" box="[151,243,295,319]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/A46835" pageId="94" pageNumber="95" type="EnaNcbi">A46835</accessionNumber>
|
||
–36, A50853–63,
|
||
<accessionNumber id="3F87AB7EFFA8FFA50A84FED6FA7EFEA7" box="[443,536,295,319]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/A50865" pageId="94" pageNumber="95" type="EnaNcbi">A50865</accessionNumber>
|
||
–78,
|
||
<accessionNumber id="3F87AB7EFFA8FFA50971FED6FACDFEA7" box="[590,683,295,319]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/A50885" pageId="94" pageNumber="95" type="EnaNcbi">A50885</accessionNumber>
|
||
,
|
||
<accessionNumber id="3F87AB7EFFA8FFA50989FED6FB75FEA7" box="[694,787,295,319]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/A50898" pageId="94" pageNumber="95" type="EnaNcbi">A50898</accessionNumber>
|
||
,
|
||
<accessionNumber id="3F87AB7EFFA8FFA50820FED6FB1DFEA7" box="[799,891,295,319]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/A50904" pageId="94" pageNumber="95" type="EnaNcbi">A50904</accessionNumber>
|
||
,
|
||
<accessionNumber id="3F87AB7EFFA8FFA508B8FED6FB82FEA7" box="[903,996,295,319]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/A50908" pageId="94" pageNumber="95" type="EnaNcbi">A50908</accessionNumber>
|
||
–9, A50916–31, and unnumbered specimens in the samples above and specimens from samples F4302, F4305, F4315, F4454, F4504, F4591, F4620, F4633, JH-34, JH-62–65, JH-67–72, JH-170 and JH-187. Many specimens are partly silicified. The figured specimens are
|
||
<materialsCitation id="90BC3CC0FFA8FFA50A3DFE65F9CDFE34" box="[258,427,404,428]" collectionCode="MGUH" pageId="94" pageNumber="95" specimenCode="MGUH 29704" specimenCount="1">
|
||
<specimenCode id="70729EE6FFA8FFA50A3DFE65F9CEFE34" box="[258,424,404,428]" collectionCode="MGUH" country="Denmark" httpUri="http://grbio.org/cool/c1ae-v64p" name="Museum Geologicum Universitatis Hafniensis" pageId="94" pageNumber="95">MGUH 29704</specimenCode>
|
||
,
|
||
</materialsCitation>
|
||
<materialsCitation id="90BC3CC0FFA8FFA50A8CFE65FA22FE34" box="[435,580,404,428]" collectionCode="TSGF" pageId="94" pageNumber="95" specimenCode="TSGF16755" specimenCount="1">
|
||
<specimenCode id="70729EE6FFA8FFA50A8CFE65FA26FE34" box="[435,576,404,428]" collectionCode="TSGF" pageId="94" pageNumber="95">TSGF16755</specimenCode>
|
||
,
|
||
</materialsCitation>
|
||
<materialsCitation id="90BC3CC0FFA8FFA50974FE65FABAFE34" box="[587,732,404,428]" collectionCode="TSGF" pageId="94" pageNumber="95" specimenCode="TSGF16756" specimenCount="1">
|
||
<specimenCode id="70729EE6FFA8FFA50974FE65FABEFE34" box="[587,728,404,428]" collectionCode="TSGF" pageId="94" pageNumber="95">TSGF16756</specimenCode>
|
||
,
|
||
</materialsCitation>
|
||
<materialsCitation id="90BC3CC0FFA8FFA509DBFE65FB13FE34" box="[740,885,404,428]" collectionCode="TSGF" pageId="94" pageNumber="95" specimenCode="TSGF16881" specimenCount="1">
|
||
<specimenCode id="70729EE6FFA8FFA509DBFE65FB17FE34" box="[740,881,404,428]" collectionCode="TSGF" pageId="94" pageNumber="95">TSGF16881</specimenCode>
|
||
,
|
||
</materialsCitation>
|
||
<materialsCitation id="90BC3CC0FFA8FFA50843FE65FC6BFE34" box="[892,1037,404,428]" collectionCode="TSGF" pageId="94" pageNumber="95" specimenCode="TSGF17075" specimenCount="1">
|
||
<specimenCode id="70729EE6FFA8FFA50843FE65FC6FFE34" box="[892,1033,404,428]" collectionCode="TSGF" pageId="94" pageNumber="95">TSGF17075</specimenCode>
|
||
,
|
||
</materialsCitation>
|
||
<materialsCitation id="90BC3CC0FFA8FFA50F2AFE65FCA8FE34" box="[1045,1230,404,428]" collectionCode="TSGF" pageId="94" pageNumber="95" specimenCode="TSGF17086" specimenCount="1">
|
||
<specimenCode id="70729EE6FFA8FFA50F2AFE65FCF9FE34" box="[1045,1183,404,428]" collectionCode="TSGF" pageId="94" pageNumber="95">TSGF17086</specimenCode>
|
||
and
|
||
</materialsCitation>
|
||
<materialsCitation id="90BC3CC0FFA8FFA50FEAFE65FD05FE34" box="[1237,1379,404,428]" collectionCode="TSGF" pageId="94" pageNumber="95" specimenCode="TSGF17087" specimenCount="1">
|
||
<specimenCode id="70729EE6FFA8FFA50FEAFE65FD05FE34" box="[1237,1379,404,428]" collectionCode="TSGF" pageId="94" pageNumber="95">TSGF17087</specimenCode>
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="68CE6516FFA8FFA50BF8FE46F91CFD8F" pageId="94" pageNumber="95" type="diagnosis">
|
||
<paragraph id="206B369DFFA8FFA50BF8FE46F91CFD8F" blockId="94.[151,1436,151,1148]" pageId="94" pageNumber="95">
|
||
<emphasis id="12A0EA8FFFA8FFA50BF8FE46F927FE48" bold="true" box="[199,321,439,464]" inLineHeading="true" pageId="94" pageNumber="95" reason="1">Diagnosis.</emphasis>
|
||
<taxonomicName id="E7D44D1EFFA8FFA50A75FE49F9BDFE48" authorityName="Schuchert & Cooper" authorityYear="1931" box="[330,475,440,464]" class="Rhynchonellata" family="Orthidae" genus="Archaeorthis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthida" pageId="94" pageNumber="95" phylum="Brachiopoda" rank="genus">
|
||
<emphasis id="12A0EA8FFFA8FFA50A75FE49F9BDFE48" box="[330,475,440,464]" italics="true" pageId="94" pageNumber="95">Archaeorthis</emphasis>
|
||
</taxonomicName>
|
||
with weak dorsal sulcus; 5–9 costellae per mm at 1-mm valve length; nearly planar ventral interarea; low callosity in front of ventral muscle field, up to 35% as wide as muscle field; nearly vertical brachiophore plates.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="68CE6516FFA8FFA40BF8FDD2F8A5FF6F" lastPageId="95" lastPageNumber="96" pageId="94" pageNumber="95" type="description">
|
||
<paragraph id="206B369DFFA8FFA50BF8FDD2FC0DFC8C" blockId="94.[151,1436,151,1148]" pageId="94" pageNumber="95">
|
||
<emphasis id="12A0EA8FFFA8FFA50BF8FDD2F93EFDA4" bold="true" box="[199,344,547,572]" inLineHeading="true" pageId="94" pageNumber="95" reason="1">Description.</emphasis>
|
||
Shell subcircular or transversely oval, moderately thick-walled and ventribiconvex. Maximum valve width located at 29–58% of valve length, moving forward with increasing size. Interarea 73–74% as wide as valve. Cardinal extremities obtuse but occasionally nearly rectangular. Largest specimen
|
||
<quantity id="E72C9B78FFA8FFA50FA7FD9DFC96FD1B" box="[1176,1264,620,643]" metricMagnitude="-3" metricUnit="m" metricValue="7.7" pageId="94" pageNumber="95" unit="mm" value="7.7">7.7 mm</quantity>
|
||
long. Anterior margin rectimarginate or weakly unisulcate. Multicostellate, occasionally ramicostellate or fascicostellate, with 5– 9 (rarely 4) costellae per mm at 1-mm valve length and about 28 costellae per
|
||
<quantity id="E72C9B78FFA8FFA50F3BFD45FC3CFD53" box="[1028,1114,692,716]" metricMagnitude="-3" metricUnit="m" metricValue="2.5" pageId="94" pageNumber="95" unit="mm" value="2.5">2.5 mm</quantity>
|
||
at the 2.5-mm growth stage. Costellae subequal and slightly rounded to subangular. Filae absent but fine capillae present. Growth lines strong distally on larger specimens. Costellae impressed within distal 25–50% of valve length.
|
||
</paragraph>
|
||
<paragraph id="206B369DFFA8FFA50BF8FCEEFA18FBE4" blockId="94.[151,1436,151,1148]" pageId="94" pageNumber="95">Dorsal valve moderately convex to nearly planar, with shallow sulcus developing at umbo. Sulcus often disappearing distally on larger specimens. L/W ratio 0.61–0.85. Maximum width located at 40–44% of valve length and maximum depth at about 35% of valve length. Interarea short, anacline and planar or slightly concave. Notothyrium wide and open. Brachiophores high, with base of brachiophore plates extending anterior to brachiophore tops. Brachiophore plates subparallel or gently diverging in both ventral and anterior directions, forming a deep Ushaped notothyrial cavity with sharply defined sides. Fulcral plates short, supporting brachiophores. Notothyrial platform low, generally slightly raised above low median ridge and reaching 14–24% of valve length. Cardinal process absent or rudimentary but with impressions of diductor muscle scars. Median ridge narrow and low, normally restricted to posterior part of valve. Adductor scars weak or obscure. Mantle canal system generally not impressed but otherwise appearing pinnate or digitate.</paragraph>
|
||
<caption id="74AB6615FFA8FFA50BA8FB41FBECFB5E" box="[151,906,1200,1222]" pageId="94" pageNumber="95" startId="94.[151,232,1200,1221]">
|
||
<paragraph id="206B369DFFA8FFA50BA8FB41FBECFB5E" blockId="94.[151,906,1200,1222]" box="[151,906,1200,1222]" pageId="94" pageNumber="95">
|
||
<emphasis id="12A0EA8FFFA8FFA50BA8FB41F96DFB5D" bold="true" box="[151,267,1200,1221]" pageId="94" pageNumber="95">TABLE 32.</emphasis>
|
||
Shell measurements of
|
||
<taxonomicName id="E7D44D1EFFA8FFA50ACDFB40FBE0FB5E" authority="Poulsen, 1937" authorityName="Poulsen" authorityYear="1937" box="[498,902,1201,1222]" class="Rhynchonellata" family="Orthidae" genus="Archaeorthis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthida" pageId="94" pageNumber="95" phylum="Brachiopoda" rank="species" species="groenlandica">
|
||
<emphasis id="12A0EA8FFFA8FFA50ACDFB40FA93FB5E" box="[498,757,1201,1222]" italics="true" pageId="94" pageNumber="95">Archaeorthis groenlandica</emphasis>
|
||
<bibRefCitation id="44454B6CFFA8FFA509C4FB40FBE0FB5E" author="Poulsen, C." box="[763,902,1201,1222]" pageId="94" pageNumber="95" pagination="1 - 72" refId="ref78154" refString="Poulsen, C. (1937) On the Lower Ordovician faunas of East Greenland. Meddelelser om Gronland, 119 (3), 1 - 72, 8 pls." type="journal article" year="1937">Poulsen, 1937</bibRefCitation>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="206B369DFFA8FFA50A77FB17FB00F956" pageId="94" pageNumber="95">
|
||
<table id="52D4C43DFFA800040B9FFB17FB00F956" box="[160,870,1254,1742]" gridcols="6" gridrows="15" pageId="94" pageNumber="95">
|
||
<tr id="9EE434DFFFA800040B9FFB17FB00FB63" box="[160,870,1254,1275]" gridrow="0" pageId="94" pageNumber="95" rowspan-0="1">
|
||
<th id="DD355DA3FFA800040A77FB17F9E4FB63" box="[328,386,1254,1275]" gridcol="1" gridrow="0" pageId="94" pageNumber="95">L</th>
|
||
<th id="DD355DA3FFA800040A82FB17F99DFB63" box="[445,507,1254,1275]" gridcol="2" gridrow="0" pageId="94" pageNumber="95">W</th>
|
||
<th id="DD355DA3FFA800040914FB17FA12FB63" box="[555,628,1254,1275]" gridcol="3" gridrow="0" pageId="94" pageNumber="95">L/W</th>
|
||
<th id="DD355DA3FFA80004099FFB17FA8BFB63" box="[672,749,1254,1275]" gridcol="4" gridrow="0" pageId="94" pageNumber="95">Wma</th>
|
||
<th id="DD355DA3FFA80004081AFB17FB00FB63" box="[805,870,1254,1275]" gridcol="5" gridrow="0" pageId="94" pageNumber="95">R1</th>
|
||
</tr>
|
||
<tr id="9EE434DFFFA800040B9FFAFAFB00FAB8" box="[160,870,1291,1312]" gridrow="1" pageId="94" pageNumber="95">
|
||
<th id="DD355DA3FFA800040B9FFAFAFB00FAB8" box="[160,870,1291,1312]" colspan="6" colspanRight="5" gridcol="0" gridrow="1" pageId="94" pageNumber="95">Dimensions of dorsal valves</th>
|
||
</tr>
|
||
<tr id="9EE434DFFFA800040B9FFAC1FB00FADD" box="[160,870,1328,1349]" gridrow="2" pageId="94" pageNumber="95">
|
||
<th id="DD355DA3FFA800040B9FFAC1F899FADD" box="[160,255,1328,1349]" gridcol="0" gridrow="2" pageId="94" pageNumber="95">N</th>
|
||
<td id="DD355DA3FFA800040A77FAC1F9E4FADD" box="[328,386,1328,1349]" gridcol="1" gridrow="2" pageId="94" pageNumber="95">33</td>
|
||
<td id="DD355DA3FFA800040A82FAC1F99DFADD" box="[445,507,1328,1349]" gridcol="2" gridrow="2" pageId="94" pageNumber="95">22</td>
|
||
<td id="DD355DA3FFA800040914FAC1FA12FADD" box="[555,628,1328,1349]" gridcol="3" gridrow="2" pageId="94" pageNumber="95">21</td>
|
||
<td id="DD355DA3FFA80004099FFAC1FA8BFADD" box="[672,749,1328,1349]" gridcol="4" gridrow="2" pageId="94" pageNumber="95">11</td>
|
||
<td id="DD355DA3FFA80004081AFAC1FB00FADD" box="[805,870,1328,1349]" gridcol="5" gridrow="2" pageId="94" pageNumber="95">32</td>
|
||
</tr>
|
||
<tr id="9EE434DFFFA800040B9FFAA1FB00FAFD" box="[160,870,1360,1381]" gridrow="3" pageId="94" pageNumber="95">
|
||
<th id="DD355DA3FFA800040B9FFAA1F899FAFD" box="[160,255,1360,1381]" gridcol="0" gridrow="3" pageId="94" pageNumber="95">Min</th>
|
||
<td id="DD355DA3FFA800040A77FAA1F9E4FAFD" box="[328,386,1360,1381]" gridcol="1" gridrow="3" pageId="94" pageNumber="95">2.1</td>
|
||
<td id="DD355DA3FFA800040A82FAA1F99DFAFD" box="[445,507,1360,1381]" gridcol="2" gridrow="3" pageId="94" pageNumber="95">3.3</td>
|
||
<td id="DD355DA3FFA800040914FAA1FA12FAFD" box="[555,628,1360,1381]" gridcol="3" gridrow="3" pageId="94" pageNumber="95">0.61</td>
|
||
<td id="DD355DA3FFA80004099FFAA1FA8BFAFD" box="[672,749,1360,1381]" gridcol="4" gridrow="3" pageId="94" pageNumber="95">35</td>
|
||
<td id="DD355DA3FFA80004081AFAA1FB00FAFD" box="[805,870,1360,1381]" gridcol="5" gridrow="3" pageId="94" pageNumber="95">4</td>
|
||
</tr>
|
||
<tr id="9EE434DFFFA800040B9FFA81FB00FA1D" box="[160,870,1392,1413]" gridrow="4" pageId="94" pageNumber="95">
|
||
<th id="DD355DA3FFA800040B9FFA81F899FA1D" box="[160,255,1392,1413]" gridcol="0" gridrow="4" pageId="94" pageNumber="95">Max</th>
|
||
<td id="DD355DA3FFA800040A77FA81F9E4FA1D" box="[328,386,1392,1413]" gridcol="1" gridrow="4" pageId="94" pageNumber="95">6.6</td>
|
||
<td id="DD355DA3FFA800040A82FA81F99DFA1D" box="[445,507,1392,1413]" gridcol="2" gridrow="4" pageId="94" pageNumber="95">8.6</td>
|
||
<td id="DD355DA3FFA800040914FA81FA12FA1D" box="[555,628,1392,1413]" gridcol="3" gridrow="4" pageId="94" pageNumber="95">0.85</td>
|
||
<td id="DD355DA3FFA80004099FFA81FA8BFA1D" box="[672,749,1392,1413]" gridcol="4" gridrow="4" pageId="94" pageNumber="95">53</td>
|
||
<td id="DD355DA3FFA80004081AFA81FB00FA1D" box="[805,870,1392,1413]" gridcol="5" gridrow="4" pageId="94" pageNumber="95">9</td>
|
||
</tr>
|
||
<tr id="9EE434DFFFA800040B9FFA61FB00FA3D" box="[160,870,1424,1445]" gridrow="5" pageId="94" pageNumber="95">
|
||
<th id="DD355DA3FFA800040B9FFA61F899FA3D" box="[160,255,1424,1445]" gridcol="0" gridrow="5" pageId="94" pageNumber="95">Mean</th>
|
||
<td id="DD355DA3FFA800040A77FA61F9E4FA3D" box="[328,386,1424,1445]" gridcol="1" gridrow="5" pageId="94" pageNumber="95">4.212</td>
|
||
<td id="DD355DA3FFA800040A82FA61F99DFA3D" box="[445,507,1424,1445]" gridcol="2" gridrow="5" pageId="94" pageNumber="95">5.550</td>
|
||
<td id="DD355DA3FFA800040914FA61FA12FA3D" box="[555,628,1424,1445]" gridcol="3" gridrow="5" pageId="94" pageNumber="95">0.742</td>
|
||
<td id="DD355DA3FFA80004099FFA61FA8BFA3D" box="[672,749,1424,1445]" gridcol="4" gridrow="5" pageId="94" pageNumber="95">43.273</td>
|
||
<td id="DD355DA3FFA80004081AFA61FB00FA3D" box="[805,870,1424,1445]" gridcol="5" gridrow="5" pageId="94" pageNumber="95">6.719</td>
|
||
</tr>
|
||
<tr id="9EE434DFFFA800040B9FFA41FB00FA5D" box="[160,870,1456,1477]" gridrow="6" pageId="94" pageNumber="95">
|
||
<th id="DD355DA3FFA800040B9FFA41F899FA5D" box="[160,255,1456,1477]" gridcol="0" gridrow="6" pageId="94" pageNumber="95">Std.error</th>
|
||
<td id="DD355DA3FFA800040A77FA41F9E4FA5D" box="[328,386,1456,1477]" gridcol="1" gridrow="6" pageId="94" pageNumber="95">0.224</td>
|
||
<td id="DD355DA3FFA800040A82FA41F99DFA5D" box="[445,507,1456,1477]" gridcol="2" gridrow="6" pageId="94" pageNumber="95">0.319</td>
|
||
<td id="DD355DA3FFA800040914FA41FA12FA5D" box="[555,628,1456,1477]" gridcol="3" gridrow="6" pageId="94" pageNumber="95">0.013</td>
|
||
<td id="DD355DA3FFA80004099FFA41FA8BFA5D" box="[672,749,1456,1477]" gridcol="4" gridrow="6" pageId="94" pageNumber="95">1.820</td>
|
||
<td id="DD355DA3FFA80004081AFA41FB00FA5D" box="[805,870,1456,1477]" gridcol="5" gridrow="6" pageId="94" pageNumber="95">0.192</td>
|
||
</tr>
|
||
<tr id="9EE434DFFFA800040B9FFA21FB00FA7D" box="[160,870,1488,1509]" gridrow="7" pageId="94" pageNumber="95">
|
||
<th id="DD355DA3FFA800040B9FFA21F899FA7D" box="[160,255,1488,1509]" gridcol="0" gridrow="7" pageId="94" pageNumber="95">Variance</th>
|
||
<td id="DD355DA3FFA800040A77FA21F9E4FA7D" box="[328,386,1488,1509]" gridcol="1" gridrow="7" pageId="94" pageNumber="95">1.650</td>
|
||
<td id="DD355DA3FFA800040A82FA21F99DFA7D" box="[445,507,1488,1509]" gridcol="2" gridrow="7" pageId="94" pageNumber="95">2.237</td>
|
||
<td id="DD355DA3FFA800040914FA21FA12FA7D" box="[555,628,1488,1509]" gridcol="3" gridrow="7" pageId="94" pageNumber="95">0.004</td>
|
||
<td id="DD355DA3FFA80004099FFA21FA8BFA7D" box="[672,749,1488,1509]" gridcol="4" gridrow="7" pageId="94" pageNumber="95">36.418</td>
|
||
<td id="DD355DA3FFA80004081AFA21FB00FA7D" box="[805,870,1488,1509]" gridcol="5" gridrow="7" pageId="94" pageNumber="95">1.176</td>
|
||
</tr>
|
||
<tr id="9EE434DFFFA800040B9FFA04FB00F992" box="[160,870,1525,1546]" gridrow="8" pageId="94" pageNumber="95">
|
||
<th id="DD355DA3FFA800040B9FFA04FB00F992" box="[160,870,1525,1546]" colspan="6" colspanRight="5" gridcol="0" gridrow="8" pageId="94" pageNumber="95">Dimensions of ventral valves</th>
|
||
</tr>
|
||
<tr id="9EE434DFFFA800040B9FF9EBFB00F9B7" box="[160,870,1562,1583]" gridrow="9" pageId="94" pageNumber="95">
|
||
<th id="DD355DA3FFA800040B9FF9EBF899F9B7" box="[160,255,1562,1583]" gridcol="0" gridrow="9" pageId="94" pageNumber="95">N</th>
|
||
<td id="DD355DA3FFA800040A77F9EBF9E4F9B7" box="[328,386,1562,1583]" gridcol="1" gridrow="9" pageId="94" pageNumber="95">40</td>
|
||
<td id="DD355DA3FFA800040A82F9EBF99DF9B7" box="[445,507,1562,1583]" gridcol="2" gridrow="9" pageId="94" pageNumber="95">26</td>
|
||
<td id="DD355DA3FFA800040914F9EBFA12F9B7" box="[555,628,1562,1583]" gridcol="3" gridrow="9" pageId="94" pageNumber="95">25</td>
|
||
<td id="DD355DA3FFA80004099FF9EBFA8BF9B7" box="[672,749,1562,1583]" gridcol="4" gridrow="9" pageId="94" pageNumber="95">11</td>
|
||
<td id="DD355DA3FFA80004081AF9EBFB00F9B7" box="[805,870,1562,1583]" gridcol="5" gridrow="9" pageId="94" pageNumber="95">42</td>
|
||
</tr>
|
||
<tr id="9EE434DFFFA800040B9FF9CBFB00F9D7" box="[160,870,1594,1615]" gridrow="10" pageId="94" pageNumber="95">
|
||
<th id="DD355DA3FFA800040B9FF9CBF899F9D7" box="[160,255,1594,1615]" gridcol="0" gridrow="10" pageId="94" pageNumber="95">Min</th>
|
||
<td id="DD355DA3FFA800040A77F9CBF9E4F9D7" box="[328,386,1594,1615]" gridcol="1" gridrow="10" pageId="94" pageNumber="95">2.3</td>
|
||
<td id="DD355DA3FFA800040A82F9CBF99DF9D7" box="[445,507,1594,1615]" gridcol="2" gridrow="10" pageId="94" pageNumber="95">3.1</td>
|
||
<td id="DD355DA3FFA800040914F9CBFA12F9D7" box="[555,628,1594,1615]" gridcol="3" gridrow="10" pageId="94" pageNumber="95">0.66</td>
|
||
<td id="DD355DA3FFA80004099FF9CBFA8BF9D7" box="[672,749,1594,1615]" gridcol="4" gridrow="10" pageId="94" pageNumber="95">29</td>
|
||
<td id="DD355DA3FFA80004081AF9CBFB00F9D7" box="[805,870,1594,1615]" gridcol="5" gridrow="10" pageId="94" pageNumber="95">5</td>
|
||
</tr>
|
||
<tr id="9EE434DFFFA800040B9FF9ABFB00F9F7" box="[160,870,1626,1647]" gridrow="11" pageId="94" pageNumber="95">
|
||
<th id="DD355DA3FFA800040B9FF9ABF899F9F7" box="[160,255,1626,1647]" gridcol="0" gridrow="11" pageId="94" pageNumber="95">Max</th>
|
||
<td id="DD355DA3FFA800040A77F9ABF9E4F9F7" box="[328,386,1626,1647]" gridcol="1" gridrow="11" pageId="94" pageNumber="95">7.7</td>
|
||
<td id="DD355DA3FFA800040A82F9ABF99DF9F7" box="[445,507,1626,1647]" gridcol="2" gridrow="11" pageId="94" pageNumber="95">7.3</td>
|
||
<td id="DD355DA3FFA800040914F9ABFA12F9F7" box="[555,628,1626,1647]" gridcol="3" gridrow="11" pageId="94" pageNumber="95">1.09</td>
|
||
<td id="DD355DA3FFA80004099FF9ABFA8BF9F7" box="[672,749,1626,1647]" gridcol="4" gridrow="11" pageId="94" pageNumber="95">58</td>
|
||
<td id="DD355DA3FFA80004081AF9ABFB00F9F7" box="[805,870,1626,1647]" gridcol="5" gridrow="11" pageId="94" pageNumber="95">9</td>
|
||
</tr>
|
||
<tr id="9EE434DFFFA800040B9FF98BFB00F917" box="[160,870,1658,1679]" gridrow="12" pageId="94" pageNumber="95">
|
||
<th id="DD355DA3FFA800040B9FF98BF899F917" box="[160,255,1658,1679]" gridcol="0" gridrow="12" pageId="94" pageNumber="95">Mean</th>
|
||
<td id="DD355DA3FFA800040A77F98BF9E4F917" box="[328,386,1658,1679]" gridcol="1" gridrow="12" pageId="94" pageNumber="95">4.551</td>
|
||
<td id="DD355DA3FFA800040A82F98BF99DF917" box="[445,507,1658,1679]" gridcol="2" gridrow="12" pageId="94" pageNumber="95">5.037</td>
|
||
<td id="DD355DA3FFA800040914F98BFA12F917" box="[555,628,1658,1679]" gridcol="3" gridrow="12" pageId="94" pageNumber="95">0.854</td>
|
||
<td id="DD355DA3FFA80004099FF98BFA8BF917" box="[672,749,1658,1679]" gridcol="4" gridrow="12" pageId="94" pageNumber="95">44.455</td>
|
||
<td id="DD355DA3FFA80004081AF98BFB00F917" box="[805,870,1658,1679]" gridcol="5" gridrow="12" pageId="94" pageNumber="95">6.738</td>
|
||
</tr>
|
||
<tr id="9EE434DFFFA800040B9FF96BFB00F937" box="[160,870,1690,1711]" gridrow="13" pageId="94" pageNumber="95">
|
||
<th id="DD355DA3FFA800040B9FF96BF899F937" box="[160,255,1690,1711]" gridcol="0" gridrow="13" pageId="94" pageNumber="95">Std.error</th>
|
||
<td id="DD355DA3FFA800040A77F96BF9E4F937" box="[328,386,1690,1711]" gridcol="1" gridrow="13" pageId="94" pageNumber="95">0.216</td>
|
||
<td id="DD355DA3FFA800040A82F96BF99DF937" box="[445,507,1690,1711]" gridcol="2" gridrow="13" pageId="94" pageNumber="95">0.266</td>
|
||
<td id="DD355DA3FFA800040914F96BFA12F937" box="[555,628,1690,1711]" gridcol="3" gridrow="13" pageId="94" pageNumber="95">0.022</td>
|
||
<td id="DD355DA3FFA80004099FF96BFA8BF937" box="[672,749,1690,1711]" gridcol="4" gridrow="13" pageId="94" pageNumber="95">2.484</td>
|
||
<td id="DD355DA3FFA80004081AF96BFB00F937" box="[805,870,1690,1711]" gridcol="5" gridrow="13" pageId="94" pageNumber="95">0.153</td>
|
||
</tr>
|
||
<tr id="9EE434DFFFA800040B9FF948FB00F956" box="[160,870,1721,1742]" gridrow="14" pageId="94" pageNumber="95">
|
||
<th id="DD355DA3FFA800040B9FF948F899F956" box="[160,255,1721,1742]" gridcol="0" gridrow="14" pageId="94" pageNumber="95">Variance</th>
|
||
<td id="DD355DA3FFA800040A77F948F9E4F956" box="[328,386,1721,1742]" gridcol="1" gridrow="14" pageId="94" pageNumber="95">1.863</td>
|
||
<td id="DD355DA3FFA800040A82F948F99DF956" box="[445,507,1721,1742]" gridcol="2" gridrow="14" pageId="94" pageNumber="95">1.845</td>
|
||
<td id="DD355DA3FFA800040914F948FA12F956" box="[555,628,1721,1742]" gridcol="3" gridrow="14" pageId="94" pageNumber="95">0.012</td>
|
||
<td id="DD355DA3FFA80004099FF948FA8BF956" box="[672,749,1721,1742]" gridcol="4" gridrow="14" pageId="94" pageNumber="95">67.873</td>
|
||
<td id="DD355DA3FFA80004081AF948FB00F956" box="[805,870,1721,1742]" gridcol="5" gridrow="14" pageId="94" pageNumber="95">0.979</td>
|
||
</tr>
|
||
</table>
|
||
</paragraph>
|
||
<paragraph id="206B369DFFA8FFA40BF8F8FFF8A5FF6F" blockId="94.[151,1437,1806,2009]" lastBlockId="95.[151,1436,151,1004]" lastPageId="95" lastPageNumber="96" pageId="94" pageNumber="95">
|
||
Ventral valve slightly to moderately (rarely strongly) convex, deepest just behind mid-length of valve. L/W ratio 0.66–1.09, increasing with size. Maximum width located at 40–50% of valve length. Ventral interarea short to moderately high, planar to slightly concave, moderately apsacline to nearly catacline, 82–96% as wide as valve. Delthyrium open, about 40°. Triangular teeth thin, with rather weakly developed crural fossettes. Dental plates thin, recessive, slightly diverging. Muscle field slightly raised on thickened platform, with moderately impressed muscle scars. Adductor scars elongate, extend anterior to teardrop-shaped diductor scars. Median callosity in front of muscle field low, proximally up to about 35% as wide as muscle field and generally fading completely at about 65% of valve length.
|
||
<emphasis id="12A0EA8FFFA9FFA40AB1FF4DFA54FF4C" box="[398,562,188,212]" italics="true" pageId="95" pageNumber="96">Vascula media</emphasis>
|
||
normally subparallel proximally to muscle field but soon diverging at about 50˚.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="68CE6516FFA9FFA40BF8FEF5FD6EFC74" pageId="95" pageNumber="96" type="discussion">
|
||
<paragraph id="206B369DFFA9FFA40BF8FEF5FB69FD1C" blockId="95.[151,1436,151,1004]" pageId="95" pageNumber="96">
|
||
<emphasis id="12A0EA8FFFA9FFA40BF8FEF5F95DFE84" bold="true" box="[199,315,260,284]" inLineHeading="true" pageId="95" pageNumber="96" reason="1">Remarks.</emphasis>
|
||
<bibRefCitation id="44454B6CFFA9FFA40A79FEF5F989FE84" author="Hallam, A." box="[326,495,260,284]" pageId="95" pageNumber="96" pagination="71 - 76" refId="ref74695" refString="Hallam, A. (1958) A Cambro-Ordovician fauna from the Hecla Hoek succession of Ny Friesland, Spitsbergen. Geological Magazine, 95 (1), 71 - 76." type="journal article" year="1958">Hallam (1958)</bibRefCitation>
|
||
assigned specimens from the southern part of Ny Friesland, Spitsbergen to the Lower Ordovician
|
||
<taxonomicName id="E7D44D1EFFA9FFA40A51FED9FB22FEA7" authority="Poulsen, 1937" authorityName="Poulsen" authorityYear="1937" box="[366,836,295,320]" class="Rhynchonellata" family="Orthidae" genus="Archaeorthis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthida" pageId="95" pageNumber="96" phylum="Brachiopoda" rank="species" species="groenlandica">
|
||
<emphasis id="12A0EA8FFFA9FFA40A51FED9FAFAFED8" box="[366,668,296,320]" italics="true" pageId="95" pageNumber="96">Archaeorthis groenlandica</emphasis>
|
||
<bibRefCitation id="44454B6CFFA9FFA4099BFED6FB22FEA7" author="Poulsen, C." box="[676,836,295,319]" pageId="95" pageNumber="96" pagination="1 - 72" refId="ref78154" refString="Poulsen, C. (1937) On the Lower Ordovician faunas of East Greenland. Meddelelser om Gronland, 119 (3), 1 - 72, 8 pls." type="journal article" year="1937">Poulsen, 1937</bibRefCitation>
|
||
</taxonomicName>
|
||
from
|
||
<collectingCountry id="58C3760DFFA9FFA408B4FED6FC65FEA7" box="[907,1027,295,319]" name="Greenland" pageId="95" pageNumber="96">Greenland</collectingCountry>
|
||
. Two years later,
|
||
<bibRefCitation id="44454B6CFFA9FFA40FF4FED6F887FEFC" author="Gobbett, D. J. & Wilson, C. B." pageId="95" pageNumber="96" pagination="441 - 460" refId="ref74207" refString="Gobbett, D. J. & Wilson, C. B. (1960) The Oslobreen Series, Upper Hecla Hoek of Ny Friesland, Spitsbergen. Geological Magazine, 97 (6), 441 - 460, pls. 13 - 15." type="journal article" year="1960">Gobbett & Wilson (1960)</bibRefCitation>
|
||
studied the same material together with newly collected material and listed the species as
|
||
<taxonomicName id="E7D44D1EFFA9FFA40FE3FEBDF8DFFE1F" authorityName="Poulsen" authorityYear="1937" class="Rhynchonellata" family="Orthidae" genus="Archaeorthis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthida" pageId="95" pageNumber="96" phylum="Brachiopoda" rank="species" species="groenlandica">
|
||
<emphasis id="12A0EA8FFFA9FFA40FE3FEBDFC8BFEFC" box="[1244,1261,332,356]" italics="true" pageId="95" pageNumber="96">A</emphasis>
|
||
. cf.
|
||
<emphasis id="12A0EA8FFFA9FFA40E1FFEBDF8DFFE1F" italics="true" pageId="95" pageNumber="96">groenlandica</emphasis>
|
||
</taxonomicName>
|
||
, suggesting the existence of some differences. A re-examination of the
|
||
<typeStatus id="FF6F883FFFA9FFA408E1FE81FC68FE10" box="[990,1038,368,392]" pageId="95" pageNumber="96">type</typeStatus>
|
||
specimens and topotypes on which
|
||
<bibRefCitation id="44454B6CFFA9FFA40BA8FE65F926FE34" author="Poulsen, C." box="[151,320,404,428]" pageId="95" pageNumber="96" pagination="1 - 72" refId="ref78154" refString="Poulsen, C. (1937) On the Lower Ordovician faunas of East Greenland. Meddelelser om Gronland, 119 (3), 1 - 72, 8 pls." type="journal article" year="1937">Poulsen (1937)</bibRefCitation>
|
||
based his description, including specimens showing some of the valve interior, which was not illustrated in the original description, revealed no differences from the Spitsbergen material. An illustration of the dorsal interior of one of the specimens from
|
||
<collectingCountry id="58C3760DFFA9FFA40952FE2DFA87FE6C" box="[621,737,476,500]" name="Greenland" pageId="95" pageNumber="96">Greenland</collectingCountry>
|
||
is included here for comparison (Pl. 25, Fig. 5). The material from
|
||
<collectingCountry id="58C3760DFFA9FFA40BE8FE0EF92AFD8F" box="[215,332,511,535]" name="Greenland" pageId="95" pageNumber="96">Greenland</collectingCountry>
|
||
does not include any specimens showing the delthyrial cavity. Seven of the
|
||
<specimenCount id="36D2FD14FFA9FFA40FF8FE0EFD10FD8F" box="[1223,1398,511,535]" pageId="95" pageNumber="96" type="generic">nine specimens</specimenCount>
|
||
on which
|
||
<bibRefCitation id="44454B6CFFA9FFA40BDBFDD5F9ECFDA4" author="Hallam, A." box="[228,394,548,572]" pageId="95" pageNumber="96" pagination="71 - 76" refId="ref74695" refString="Hallam, A. (1958) A Cambro-Ordovician fauna from the Hecla Hoek succession of Ny Friesland, Spitsbergen. Geological Magazine, 95 (1), 71 - 76." type="journal article" year="1958">Hallam (1958)</bibRefCitation>
|
||
based his study, together with the specimens listed by
|
||
<bibRefCitation id="44454B6CFFA9FFA40F3EFDD5FD40FDA4" author="Gobbett, D. J. & Wilson, C. B." box="[1025,1318,548,572]" pageId="95" pageNumber="96" pagination="441 - 460" refId="ref74207" refString="Gobbett, D. J. & Wilson, C. B. (1960) The Oslobreen Series, Upper Hecla Hoek of Ny Friesland, Spitsbergen. Geological Magazine, 97 (6), 441 - 460, pls. 13 - 15." type="journal article" year="1960">Gobbett & Wilson (1960)</bibRefCitation>
|
||
and some previously overlooked specimens in the same collections, were also re-examined, revealing no important differences from those collected in northeastern Ny Friesland.
|
||
</paragraph>
|
||
<paragraph id="206B369DFFA9FFA40BF8FD61FAACFCC3" blockId="95.[151,1436,151,1004]" pageId="95" pageNumber="96">
|
||
<taxonomicName id="E7D44D1EFFA9FFA40BF8FD61F93EFD30" authorityName="Schuchert & Cooper" authorityYear="1931" box="[199,344,656,680]" class="Rhynchonellata" family="Orthidae" genus="Archaeorthis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthida" pageId="95" pageNumber="96" phylum="Brachiopoda" rank="genus">
|
||
<emphasis id="12A0EA8FFFA9FFA40BF8FD61F93EFD30" box="[199,344,656,680]" italics="true" pageId="95" pageNumber="96">Archaeorthis</emphasis>
|
||
</taxonomicName>
|
||
presently includes more than 25 described species from the Lower and Middle Ordovician of Asia,
|
||
<collectingCountry id="58C3760DFFA9FFA40BE7FD45F924FD54" box="[216,322,692,716]" name="Australia" pageId="95" pageNumber="96">Australia</collectingCountry>
|
||
, Europe,
|
||
<collectingCountry id="58C3760DFFA9FFA40A95FD45FA79FD54" box="[426,543,692,716]" name="Greenland" pageId="95" pageNumber="96">Greenland</collectingCountry>
|
||
and North and South America.
|
||
<taxonomicName id="E7D44D1EFFA9FFA408BEFD45FCF4FD54" authority="Poulsen" authorityName="Poulsen" box="[897,1170,692,716]" class="Rhynchonellata" family="Orthidae" genus="Archaeorthis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthida" pageId="95" pageNumber="96" phylum="Brachiopoda" rank="species" species="greenlandica">
|
||
<emphasis id="12A0EA8FFFA9FFA408BEFD45FC55FD54" box="[897,1075,692,716]" italics="true" pageId="95" pageNumber="96">A. greenlandica</emphasis>
|
||
Poulsen
|
||
</taxonomicName>
|
||
resembles the four species
|
||
<taxonomicName id="E7D44D1EFFA9FFA40BF6FD29F99CFD77" authority="Cooper, 1956" authorityName="Cooper" authorityYear="1956" box="[201,506,727,752]" class="Rhynchonellata" family="Orthidae" genus="Archaeorthis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthida" pageId="95" pageNumber="96" phylum="Brachiopoda" rank="species" species="biconvexa">
|
||
<emphasis id="12A0EA8FFFA9FFA40BF6FD29F8BCFD68" box="[201,218,728,752]" italics="true" pageId="95" pageNumber="96">A</emphasis>
|
||
.
|
||
<emphasis id="12A0EA8FFFA9FFA40BD7FD29F93FFD68" box="[232,345,728,752]" italics="true" pageId="95" pageNumber="96">biconvexa</emphasis>
|
||
<bibRefCitation id="44454B6CFFA9FFA40A5FFD26F99CFD77" author="Cooper, G. A." box="[352,506,727,751]" pageId="95" pageNumber="96" pagination="1 - 1245" refId="ref73641" refString="Cooper, G. A. (1956) Chazyan and related brachiopods. Smithsonian Miscellaneous Collections, 127 (1 - 2), 1 - 1245, 269 pls." type="journal article" year="1956">Cooper, 1956</bibRefCitation>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="E7D44D1EFFA9FFA4093BFD29FB4DFD77" authority="(Billings, 1862)" baseAuthorityName="Billings" baseAuthorityYear="1862" box="[516,811,727,752]" class="Rhynchonellata" family="Orthidae" genus="Orthis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthida" pageId="95" pageNumber="96" phylum="Brachiopoda" rank="species" species="electra">
|
||
<emphasis id="12A0EA8FFFA9FFA4093BFD29FA17FD68" box="[516,625,728,752]" italics="true" pageId="95" pageNumber="96">A. electra</emphasis>
|
||
(Billings, 1862)
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="E7D44D1EFFA9FFA40809FD29FCC6FD77" authority="Nikitin & Popov, 1984" authorityName="Nikitin & Popov" authorityYear="1984" box="[822,1184,727,752]" class="Rhynchonellata" family="Orthidae" genus="Archaeorthis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthida" pageId="95" pageNumber="96" phylum="Brachiopoda" rank="species" species="opima">
|
||
<emphasis id="12A0EA8FFFA9FFA40809FD29FBFDFD77" box="[822,923,728,752]" italics="true" pageId="95" pageNumber="96">A. opima</emphasis>
|
||
<bibRefCitation id="44454B6CFFA9FFA4089DFD26FCC6FD77" author="Nikitin, I. F. & Popov, L. E." box="[930,1184,727,751]" pageId="95" pageNumber="96" pagination="126 - 166" refId="ref77330" refString="Nikitin, I. F. & Popov, L. E. (1984) Chast II. Brakhiopody bestamakskoy i sargaldakskoy svit (srednii ordovik). (Part II. Brachiopods from the Bestamak and Sargaldak Formations (Middle Ordovician).) In: Bandaletov, S. M. (Ed.), Brachiopody i biostratigrafia srednego i verkhnego ordovika khrebta Chingiz. (Brachiopods and biostratigraphy of the Middle and Upper Ordovician of the Chingiz Range.). Alma-Ata Nauka, pp. 126 - 166. [in Russian]." type="book chapter" year="1984">Nikitin & Popov, 1984</bibRefCitation>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="E7D44D1EFFA9FFA40FE9FD29F921FC8C" authority="Curry & Williams, 1984" authorityName="Curry & Williams" authorityYear="1984" class="Rhynchonellata" family="Orthidae" genus="Archaeorthis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthida" pageId="95" pageNumber="96" phylum="Brachiopoda" rank="species" species="scotia">
|
||
<emphasis id="12A0EA8FFFA9FFA40FE9FD29FD51FD77" box="[1238,1335,728,752]" italics="true" pageId="95" pageNumber="96">A. scotia</emphasis>
|
||
<bibRefCitation id="44454B6CFFA9FFA40E01FD26F921FC8C" author="Curry, G. B. & Williams, A." pageId="95" pageNumber="96" pagination="301 - 310" refId="ref73695" refString="Curry, G. B. & Williams, A. (1984) Lower Ordovician brachiopods from the Ben Suardal Limestone Formation (Durness Group) of Skye, western Scotland. Transactions of the Royal Society of Edinburgh: Earth Sciences, 75, 301 - 310." type="journal article" year="1984">Curry & Williams, 1984</bibRefCitation>
|
||
</taxonomicName>
|
||
.
|
||
<taxonomicName id="E7D44D1EFFA9FFA40A6CFD0DF983FC8C" authorityName="Cooper" authorityYear="1956" box="[339,485,764,788]" class="Rhynchonellata" family="Orthidae" genus="Archaeorthis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthida" pageId="95" pageNumber="96" phylum="Brachiopoda" rank="species" species="biconvexa">
|
||
<emphasis id="12A0EA8FFFA9FFA40A6CFD0DF983FC8C" box="[339,485,764,788]" italics="true" pageId="95" pageNumber="96">A. biconvexa</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="E7D44D1EFFA9FFA40921FD0DFAEBFC8C" baseAuthorityName="Billings" baseAuthorityYear="1862" box="[542,653,764,788]" class="Rhynchonellata" family="Orthidae" genus="Orthis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthida" pageId="95" pageNumber="96" phylum="Brachiopoda" rank="species" species="electra">
|
||
<emphasis id="12A0EA8FFFA9FFA40921FD0DFAEBFC8C" box="[542,653,764,788]" italics="true" pageId="95" pageNumber="96">A. electra</emphasis>
|
||
</taxonomicName>
|
||
have a wider median ridge on the ventral valve floor and apparently coarser costellae.
|
||
<taxonomicName id="E7D44D1EFFA9FFA40A5DFCD1F9AFFCAF" authorityName="Nikitin & Popov" authorityYear="1984" box="[354,457,800,824]" class="Rhynchonellata" family="Orthidae" genus="Archaeorthis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthida" pageId="95" pageNumber="96" phylum="Brachiopoda" rank="species" species="opima">
|
||
<emphasis id="12A0EA8FFFA9FFA40A5DFCD1F9AFFCAF" box="[354,457,800,824]" italics="true" pageId="95" pageNumber="96">A. opima</emphasis>
|
||
</taxonomicName>
|
||
has a higher L/W ratio and a cardinal process, while
|
||
<taxonomicName id="E7D44D1EFFA9FFA40F0CFCD1FCF1FCAF" authorityName="Curry & Williams" authorityYear="1984" box="[1075,1175,800,824]" class="Rhynchonellata" family="Orthidae" genus="Archaeorthis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Orthida" pageId="95" pageNumber="96" phylum="Brachiopoda" rank="species" species="scotia">
|
||
<emphasis id="12A0EA8FFFA9FFA40F0CFCD1FCF1FCAF" box="[1075,1175,800,824]" italics="true" pageId="95" pageNumber="96">A. scotia</emphasis>
|
||
</taxonomicName>
|
||
has strongly divergent brachiophore plates and impressed adductor scars.
|
||
</paragraph>
|
||
<paragraph id="206B369DFFA9FFA40BF8FC96FD6EFC74" blockId="95.[151,1436,151,1004]" pageId="95" pageNumber="96">
|
||
<emphasis id="12A0EA8FFFA9FFA40BF8FC96F93FFC18" bold="true" box="[199,345,871,896]" inLineHeading="true" pageId="95" pageNumber="96" reason="1">Occurrence.</emphasis>
|
||
Middle Oslobreen Limestone, Kirtonryggen Formation, at Kassiopeiaisen, Kirtonryggen and Oslobreen in central Ny Friesland. In horizons throughout Nordporten Member, Kirtonryggen Formation, Basissletta in northeastern Ny Friesland, Spitsbergen. Cape Weber Formation (Lower Ordovician); Cape Weber, Mountain Gunvor, upper part of Devon Canyon and summit
|
||
<quantity id="E72C9B78FFA9FFA409C3FC25FB53FC74" box="[764,821,980,1004]" metricMagnitude="3" metricUnit="m" metricValue="1.0" pageId="95" pageNumber="96" unit="km" value="1.0">1 km</quantity>
|
||
south of Devon Canyon, East
|
||
<collectingCountry id="58C3760DFFA9FFA40FB3FC25FD62FC74" box="[1164,1284,980,1004]" name="Greenland" pageId="95" pageNumber="96">Greenland</collectingCountry>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |