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<document id="E2EDA5605CDB8C71FB3048B1E5307A45" ID-CLB-Dataset="26049" ID-DOI="10.11646/zootaxa.4654.1.1" ID-GBIF-Dataset="9ce1d103-9234-4fbe-9544-f1c294bb8783" ID-ISSN="1175-5326" ID-Zenodo-Dep="3365803" ID-ZooBank="CFD82CC0-3110-472E-972B-7ADC0C523A04" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1565592061838" checkinUser="plazi" docAuthor="Hansen, Thomas" docDate="2019" docId="BF18F633A975FF922B9CC667FC49FD80" docLanguage="en" docName="zootaxa.4654.1.1.pdf" docOrigin="Zootaxa 4654 (1)" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Cerithiella selandica Hansen 2019, n. sp." docType="treatment" docVersion="21" lastPageNumber="119" masterDocId="43218E4BA900FFE52B0BC14DFFA9FFE3" masterDocTitle="Gastropods from the Cretaceous-Palaeogene boundary in Denmark" masterLastPageNumber="196" masterPageNumber="1" pageNumber="118" updateTime="1698750564626" updateUser="ExternalLinkService">
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<mods:title id="6E0597617B11DC34DFF6108544C521AE">Gastropods from the Cretaceous-Palaeogene boundary in Denmark</mods:title>
</mods:titleInfo>
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<mods:namePart id="BD96EA6646E60D95AC1403932432DD70">Hansen, Thomas</mods:namePart>
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<mods:title id="E59C84617454F929E6F9590AE1D5CFB4">Zootaxa</mods:title>
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<mods:date id="F113270FDCF3FC2EAE9E7B785EC671A7">2019</mods:date>
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<mods:number id="3770E3A47BC6D1571D0186F1B1728EC2">2019-08-12</mods:number>
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<mods:number id="6778AB62300F571316584A50186BB643">4654</mods:number>
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<mods:classification id="2496879F5E33A428085969B9FC9BBAC0">journal article</mods:classification>
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<mods:identifier id="C5324291A12D7D3051D263F9AFDBF5A7" type="DOI">10.11646/zootaxa.4654.1.1</mods:identifier>
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<treatment id="BF18F633A975FF922B9CC667FC49FD80" ID-GBIF-Taxon="159074733" LSID="urn:lsid:plazi:treatment:BF18F633A975FF922B9CC667FC49FD80" httpUri="http://treatment.plazi.org/id/BF18F633A975FF922B9CC667FC49FD80" lastPageId="119" lastPageNumber="119" pageId="117" pageNumber="118">
<subSubSection id="7FAB14AEA975FF902B9CC667FE72F8A6" box="[151,475,1834,1861]" pageId="117" pageNumber="118" type="nomenclature">
<paragraph id="370E4725A975FF902B9CC667FE72F8A6" blockId="117.[151,475,1834,1896]" box="[151,475,1834,1861]" pageId="117" pageNumber="118">
<heading id="6C46F049A975FF902B9CC667FE72F8A6" bold="true" box="[151,475,1834,1861]" fontSize="11" level="1" pageId="117" pageNumber="118" reason="1">
<emphasis id="05C59B37A975FF902B9CC667FE72F8A6" bold="true" box="[151,475,1834,1861]" pageId="117" pageNumber="118">
<taxonomicName id="F0B13CA6A975FF902B9CC667FE38F8A6" authority="Hansen, 2019" authorityName="Hansen" authorityYear="2019" box="[151,401,1834,1861]" class="Gastropoda" family="Newtoniellidae" genus="Cerithiella" kingdom="Animalia" pageId="117" pageNumber="118" phylum="Mollusca" rank="species" species="selandica" status="sp. nov.">
<emphasis id="05C59B37A975FF902B9CC667FE38F8A6" bold="true" box="[151,401,1834,1861]" italics="true" pageId="117" pageNumber="118">Cerithiella selandica</emphasis>
</taxonomicName>
<taxonomicNameLabel id="1EF6264CA975FF902A92C666FE72F8A6" box="[409,475,1835,1861]" pageId="117" pageNumber="118" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="7FAB14AEA975FF902B9CC603FEBEF88B" box="[151,279,1870,1896]" pageId="117" pageNumber="118" type="description">
<paragraph id="370E4725A975FF902B9CC603FEBEF88B" blockId="117.[151,475,1834,1896]" box="[151,279,1870,1896]" pageId="117" pageNumber="118">
<figureCitation id="AF8A5BA0A975FF902B9CC603FF40F88B" box="[151,233,1870,1896]" captionStart="FIGURE 28" captionStartId="116.[151,250,188,213]" captionTargetId="figure@115.[151,1435,179,1918]" captionTargetPageId="115" captionText="FIGURE 28. A. Thereitis carlsbergi n. sp., Protoconch of paratype MGUH 33205.Width of protoconch 0.4 mm. BD. Thereitis cretacea n. sp. B. Holotype protoconch MGUH 33206. Width 0.4 mm. C. Silicone cast of paratype MGUH 33207. Width 0.9 mm. D. Silicone cast of paratype MGUH 33208. Width 1.1 mm. E. Thereitis sp., Silicone cast of MGUH 33209. Width 0.4 mm. FI. Cerithiella moltkianum (Ravn, 1902). FH. Silicone cast of MGUH 33210. Width of teleoconch 4.6 mm. Height of protoconch 1.0 mm. I. Silicone cast of MGUH 33211.Width 9.2 mm. JO. Cerithiella selandica n. sp. JK. Silicone cast of holotype MGUH 33212. Teleoconch width 2.6 mm. Preserved protoconch width 0.5 mm. LM. Silicone cast of paratype MGUH 33213. Height 31 mm. N. Paratype protoconch MGUH 33214. Width 0.7 mm. O. Silicone cast of paratype MGUH 33215. Width 2.6 mm. PQ. Cerithiella sp. P. Silicone cast of MGUH 33216. Width 6.7 mm. Q. Silicone cast of MGUH 33217. Width 5.1 mm. R. Eumetula sp., Silicone cast of MGUH 33218. Width 0.9 mm. S. Trituba obliquecostulata (Kaunhowen, 1898). Silicone cast of MGUH 33219. Width 1.2 mm. TV. Vatopsis heinbergi n. sp. T. Silicone cast of holotype MGUH 33220. Width 1.2 mm. U. Silicone cast of paratype MGUH 33221. Width 3.1 mm. V. Silicone cast of paratype MGUH 33222. Width 4.0 mm. W. Vatopsis sp., Silicone cast of MGUH 33223. Width 2.5 mm. XY. Ageria skeldervigensis n. sp. X. Silicone cast of paratype MGUH 33224. Height 4.1 mm. Y. Silicone cast of paratype MGUH 33225. Width 7.4 mm." figureDoi="http://doi.org/10.5281/zenodo.3442112" httpUri="https://zenodo.org/record/3442112/files/figure.png" pageId="117" pageNumber="118">Figs 28</figureCitation>
JO
</paragraph>
</subSubSection>
<subSubSection id="7FAB14AEA975FF922B9CC6D8FC49FD80" lastPageId="119" lastPageNumber="120" pageId="117" pageNumber="118" type="materials_examined">
<paragraph id="370E4725A975FF902B9CC6D8FB37F81B" blockId="117.[151,1436,1941,2041]" pageId="117" pageNumber="118">
<emphasis id="05C59B37A975FF902B9CC6D8FEBBF853" bold="true" box="[151,274,1941,1968]" pageId="117" pageNumber="118">Diagnosis.</emphasis>
Protoconch with four and a half whorls, with collabral threads but no or only very weakly developed spiral ribs on last whorl. Teleoconch whorls with strong keel; columellar plate not strongly developed; columella with weak fold; base carrying only one primary spiral rib. Transverse sculpture fairly dense.
</paragraph>
<paragraph id="370E4725A976FF932BCCC1D5FBECFF51" blockId="118.[151,1437,152,2015]" box="[199,1093,152,179]" pageId="118" pageNumber="119">
<emphasis id="05C59B37A976FF932BCCC1D5FE1DFF50" bold="true" box="[199,436,152,179]" pageId="118" pageNumber="119">Derivation of name.</emphasis>
Name of the Danish island Sealand from which it derives.
</paragraph>
<paragraph id="370E4725A976FF932BCCC1F0FD54FE85" blockId="118.[151,1437,152,2015]" pageId="118" pageNumber="119">
<emphasis id="05C59B37A976FF932BCCC1F0FEDCFF34" bold="true" box="[199,373,188,215]" pageId="118" pageNumber="119">Type material.</emphasis>
<materialsCitation id="87D94D78A976FF932A77C1F1FEC0FF19" ID-GBIF-Occurrence="2413160792" collectionCode="MGUH" location="The" pageId="118" pageNumber="119" specimenCode="MGUH 33212" specimenCount="1" typeStatus="holotype">
<location id="326E11FEA976FF932A77C1F1FE01FF35" LSID="urn:lsid:plazi:treatment:BF18F633A975FF922B9CC667FC49FD80:326E11FEA976FF932A77C1F1FE01FF35" box="[380,424,188,214]" name="The" pageId="118" pageNumber="119">The</location>
<typeStatus id="E80AF987A976FF932AA4C1F1FDB8FF35" box="[431,529,188,214]" pageId="118" pageNumber="119" type="holotype">holotype</typeStatus>
<specimenCode id="6717EF5EA976FF932913C1F0FD12FF34" box="[536,699,189,215]" pageId="118" pageNumber="119">MGUH 33212</specimenCode>
is an external mould presenting the last protoconch whorl and 13 teleoconch whorls
</materialsCitation>
.
<materialsCitation id="87D94D78A976FF932A7FC1ACFD5AFEA1" ID-GBIF-Occurrence="2413160774" collectionCode="MGUH" location="Northern Jutland" municipality="Vokslev Quarry" pageId="118" pageNumber="119" specimenCode="MGUH 33213, MGUH 33214" specimenCount="2" typeStatus="paratype">
<typeStatus id="E80AF987A976FF932A7FC1ACFE7FFF18" box="[372,470,225,251]" pageId="118" pageNumber="119" type="paratype">Paratype</typeStatus>
<specimenCode id="6717EF5EA976FF932AD5C1ACFD2DFF18" box="[478,644,225,251]" pageId="118" pageNumber="119">MGUH 33213</specimenCode>
, consisting of an external and fragments of the internal mould, comes from the same locality and horizon, while
<typeStatus id="E80AF987A976FF932961C048FD63FEFC" box="[618,714,261,287]" pageId="118" pageNumber="119" type="paratype">paratype</typeStatus>
<specimenCode id="6717EF5EA976FF9329DBC048FCDCFEFC" box="[720,885,261,287]" pageId="118" pageNumber="119">MGUH 33214</specimenCode>
, an external mould of protoconch and teleoconch, was collected from
<collectingMunicipality id="D76ADD5FA976FF932A7FC065FD8CFEA0" box="[372,549,296,323]" pageId="118" pageNumber="119">Vokslev Quarry</collectingMunicipality>
,
<location id="326E11FEA976FF93293AC065FD5AFEA1" LSID="urn:lsid:plazi:treatment:BF18F633A975FF922B9CC667FC49FD80:326E11FEA976FF93293AC065FD5AFEA1" box="[561,755,296,322]" municipality="Vokslev Quarry" name="Northern Jutland" pageId="118" pageNumber="119">Northern Jutland</location>
</materialsCitation>
.
<materialsCitation id="87D94D78A976FF9329F6C064FD54FE85" ID-GBIF-Occurrence="2413160791" collectionCode="MGUH" location="Stevns Klint" municipality="Cerithium Limestone Member at Holtug" pageId="118" pageNumber="119" specimenCode="MGUH 33215" specimenCount="1" typeStatus="paratype">
<typeStatus id="E80AF987A976FF9329F6C064FCF6FEA0" box="[765,863,297,323]" pageId="118" pageNumber="119" type="paratype">Paratype</typeStatus>
<specimenCode id="6717EF5EA976FF93286CC064FBA3FEA0" box="[871,1034,296,323]" pageId="118" pageNumber="119">MGUH 33215</specimenCode>
is an external spire mould from the
<collectingMunicipality id="D76ADD5FA976FF932B9CC001FDF6FE85" box="[151,607,332,359]" pageId="118" pageNumber="119">
<taxonomicName id="F0B13CA6A976FF932B9CC001FE45FE85" authority="Limestone Member" authorityName="Gilleaudeau et al." authorityYear="2018" box="[151,492,332,358]" class="Gastropoda" family="Cerithiidae" genus="Cerithium" higherTaxonomySource="CoL" kingdom="Animalia" order="Littorinimorpha" pageId="118" pageNumber="119" phylum="Mollusca" rank="genus">Cerithium Limestone Member</taxonomicName>
at Holtug
</collectingMunicipality>
,
<location id="326E11FEA976FF932961C000FD50FE85" LSID="urn:lsid:plazi:treatment:BF18F633A975FF922B9CC667FC49FD80:326E11FEA976FF932961C000FD50FE85" box="[618,761,332,359]" municipality="Cerithium Limestone Member at Holtug" name="Stevns Klint" pageId="118" pageNumber="119">Stevns Klint</location>
.
</materialsCitation>
</paragraph>
<paragraph id="370E4725A976FF932BCCC03DFAF7FE15" blockId="118.[151,1437,152,2015]" pageId="118" pageNumber="119">
<emphasis id="05C59B37A976FF932BCCC03DFE13FE68" bold="true" box="[199,442,368,395]" pageId="118" pageNumber="119">Additional material.</emphasis>
<materialsCitation id="87D94D78A976FF932ACAC03DFAF7FE15" ID-GBIF-Occurrence="2413160783" pageId="118" pageNumber="119">
<collectionCode id="51A0DFE0A976FF932ACAC03DFDABFE68" box="[449,514,368,395]" country="USA" httpUri="http://grbio.org/cool/2e2p-880n" name="Ohio State University Museum" pageId="118" pageNumber="119">ØSM</collectionCode>
.10042-178-ac, eight specimens collected in connection with this study and found in the informally catalogued samples SH.105.AB, SR.296.B, SR.476.AC, SR.565, SR.620.AB, SO.93, DN.1 and DN.52.AB, and 15 external and in a few cases internal moulds deposited at the Natural History Museum of
<collectingCountry id="4FA607B5A976FF932B9CC091FEAAFE15" box="[151,259,476,502]" name="Denmark" pageId="118" pageNumber="119">Denmark</collectingCountry>
. An additional specimen from Dania Quarry is deposited in the private collection of K. I. Schnetler.
</materialsCitation>
</paragraph>
<paragraph id="370E4725A976FF932BCCC34CFB7BFDF9" blockId="118.[151,1437,152,2015]" box="[199,1234,512,539]" pageId="118" pageNumber="119">
<emphasis id="05C59B37A976FF932BCCC34CFD93FDF8" bold="true" box="[199,570,512,539]" pageId="118" pageNumber="119">
<typeStatus id="E80AF987A976FF932BCCC34CFEABFDF8" box="[199,258,513,539]" pageId="118" pageNumber="119">Type</typeStatus>
stratum and
<typeStatus id="E80AF987A976FF932AA8C34CFE7FFDF8" box="[419,470,513,539]" pageId="118" pageNumber="119">type</typeStatus>
locality.
</emphasis>
<taxonomicName id="F0B13CA6A976FF93294AC34DFC3CFDF9" authority="Limestone Member" authorityName="Gilleaudeau et al." authorityYear="2018" box="[577,917,512,538]" class="Gastropoda" family="Cerithiidae" genus="Cerithium" higherTaxonomySource="CoL" kingdom="Animalia" order="Littorinimorpha" pageId="118" pageNumber="119" phylum="Mollusca" rank="genus">Cerithium Limestone Member</taxonomicName>
at Skeldervig, Stevns Klint.
</paragraph>
<paragraph id="370E4725A976FF932BCCC369FF59FD49" blockId="118.[151,1437,152,2015]" pageId="118" pageNumber="119">
<emphasis id="05C59B37A976FF932BCCC369FEF3FDDC" bold="true" box="[199,346,548,575]" pageId="118" pageNumber="119">Occurrence.</emphasis>
<taxonomicName id="F0B13CA6A976FF932A6BC369FDE5FDDD" authority="Hansen, 2019" authorityName="Hansen" authorityYear="2019" box="[352,588,548,574]" class="Gastropoda" family="Newtoniellidae" genus="Cerithiella" kingdom="Animalia" pageId="118" pageNumber="119" phylum="Mollusca" rank="species" species="selandica" status="sp. nov.">
<emphasis id="05C59B37A976FF932A6BC369FDE5FDDD" box="[352,588,548,574]" italics="true" pageId="118" pageNumber="119">Cerithiella selandica</emphasis>
</taxonomicName>
<emphasis id="05C59B37A976FF932958C368FD38FDDC" bold="true" box="[595,657,549,575]" pageId="118" pageNumber="119">
<taxonomicNameLabel id="1EF6264CA976FF932958C368FD38FDDC" box="[595,657,549,575]" pageId="118" pageNumber="119" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
ranges from the lower part of the lower Danian
<taxonomicName id="F0B13CA6A976FF932FA5C369FF5FFD81" authority="Limestone Member" authorityName="Gilleaudeau et al." authorityYear="2018" class="Gastropoda" family="Cerithiidae" genus="Cerithium" higherTaxonomySource="CoL" kingdom="Animalia" order="Littorinimorpha" pageId="118" pageNumber="119" phylum="Mollusca" rank="genus">Cerithium Limestone Member</taxonomicName>
and up into the lower part of the Korsnaeb Member. It is moderately common in the southern to northern part of the Stevns Klint exposure and is also found in the corresponding layers at Vokslev and Dania in Northern Jutland.
</paragraph>
<paragraph id="370E4725A976FF932BCCC3F9FEA1FC61" blockId="118.[151,1437,152,2015]" pageId="118" pageNumber="119">
<emphasis id="05C59B37A976FF932BCCC3F9FEF0FD2C" bold="true" box="[199,345,692,719]" pageId="118" pageNumber="119">Description.</emphasis>
Protoconch turriform multispiral with approximately 4 ½ convex whorls; initial whorl seemingly smooth, the following carrying around 14 to 18 fine, strongly opisthocline and somewhat opisthocyrt collabral threads per half whorl. Last whorl with two faintly developed spiral threads centrally. Transition to teleoconch very gradual, showing a continuation of spiral ribs and densely spaced collabral threads, the former becoming much stronger and adjoined by weak abapical one located slightly adapical to suture. Protoconch
<quantity id="F049EAC0A976FF932FA6C208FAACFCBC" box="[1197,1285,837,863]" metricMagnitude="-4" metricUnit="m" metricValue="9.0" pageId="118" pageNumber="119" unit="mm" value="0.9">0.9 mm</quantity>
high and
<quantity id="F049EAC0A976FF932E72C209FF6AFC60" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="118" pageNumber="119" unit="mm" value="0.5">0.5 mm</quantity>
wide.
</paragraph>
<paragraph id="370E4725A976FF932BCCC2C1FACAFBB9" blockId="118.[151,1437,152,2015]" pageId="118" pageNumber="119">First teleoconch whorls high with marked keel and concomitant deeply V-shaped sutural groove, suture narrow and shallow. Succeeding whorls flat sided with a pronounced, sharp keel located slightly above narrow abapical suture; height of whorls corresponding to nearly 50 % of whorl width. Base weakly convex. Aperture rounded subrectangular to pentagonal, abapically continuing out into relatively long siphonal canal; siphonal canal strongly oblique; outer lip thin with broad and fairly deep sinus just above keel; parietal lip strongly developed but thin; columellar plait low and broad, located on lower part of slightly concave columella, accentuating weak canal.</paragraph>
<paragraph id="370E4725A976FF932BCCC529FACEFA21" blockId="118.[151,1437,152,2015]" pageId="118" pageNumber="119">
Whorl sculpture initially weakly reticulate with densely spaced collabral threads and three spiral ribs, two centrally on the whorl and a weaker abapical one located slightly above suture. Collabral threads describing forwardly directed sinus around abapical spiral thread. Later whorls strongly reticulate, reticulation consisting of 12 to 16 transverse ribs per whorl on third or fourth teleoconch whorl, crossed by slightly stronger spiral ribs. Additional spiral ribs are added to three initial ones, which become the second to fourth spiral ribs with the fourth moving down below the suture line and the third and strongest situated on keel. Spiral ribs 2 and 3 closer than 1 and 2. Transverse ribs terminating just below keel. Number of transverse ribs increasing abapically to around 40 ribs on the 20
<superScript id="C0C4EA6DA976FF932E42C476FAFFFAAA" attach="left" box="[1353,1366,1339,1353]" fontSize="6" pageId="118" pageNumber="119">th</superScript>
teleoconch whorl, while the tubercles at the rib junctions and the transverse and adapical two spiral ribs become weaker. Third spiral rib becoming higher and more sharply delineated on later whorls. Base carrying a single primary spiral rib succeeded by a weak, but wide furrow and densely spaced weak spiral ribs covering the whole lower base.
</paragraph>
<paragraph id="370E4725A976FF932BCCC480FF42F9E9" blockId="118.[151,1437,152,2015]" pageId="118" pageNumber="119">
<emphasis id="05C59B37A976FF932BCCC480FED7FA04" bold="true" box="[199,382,1485,1511]" pageId="118" pageNumber="119">Measurements.</emphasis>
Largest specimen,
<collectionCode id="51A0DFE0A976FF932953C480FD07FA04" box="[600,686,1485,1511]" country="Denmark" httpUri="http://grbio.org/cool/c1ae-v64p" name="Museum Geologicum Universitatis Hafniensis" pageId="118" pageNumber="119">MGUH</collectionCode>
33213, is
<quantity id="F049EAC0A976FF932828C480FCDAFA04" box="[803,883,1485,1511]" metricMagnitude="-2" metricUnit="m" metricValue="3.1" pageId="118" pageNumber="119" unit="mm" value="31.0">31 mm</quantity>
high and
<quantity id="F049EAC0A976FF9328E8C480FB90FA04" box="[995,1081,1485,1511]" metricMagnitude="-3" metricUnit="m" metricValue="7.1" pageId="118" pageNumber="119" unit="mm" value="7.1">7.1 mm</quantity>
in diameter with 18 teleoconch whorls.
</paragraph>
<paragraph id="370E4725A976FF932BCCC758FF44F901" blockId="118.[151,1437,152,2015]" pageId="118" pageNumber="119">
<emphasis id="05C59B37A976FF932BCCC758FE92F9CC" bold="true" box="[199,315,1557,1583]" pageId="118" pageNumber="119">Remarks.</emphasis>
<taxonomicName id="F0B13CA6A976FF932A48C759FD86F9CD" authority="Hansen, 2019" authorityName="Hansen" authorityYear="2019" box="[323,559,1556,1582]" class="Gastropoda" family="Newtoniellidae" genus="Cerithiella" kingdom="Animalia" pageId="118" pageNumber="119" phylum="Mollusca" rank="species" species="selandica" status="sp. nov.">
<emphasis id="05C59B37A976FF932A48C759FD86F9CD" box="[323,559,1556,1582]" italics="true" pageId="118" pageNumber="119">Cerithiella selandica</emphasis>
</taxonomicName>
<emphasis id="05C59B37A976FF93293DC758FDDFF9CC" bold="true" box="[566,630,1557,1583]" pageId="118" pageNumber="119">
<taxonomicNameLabel id="1EF6264CA976FF93293DC758FDDFF9CC" box="[566,630,1557,1583]" pageId="118" pageNumber="119" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
closely resembles the Palaeocene
<taxonomicName id="F0B13CA6A976FF9328F0C759FB2DF9CD" authorityName="Forbes &amp; Hanley" authorityYear="1849" box="[1019,1156,1556,1582]" class="Gastropoda" family="Cerithiopsidae" genus="Cerithiopsis" kingdom="Animalia" pageId="118" pageNumber="119" phylum="Mollusca" rank="genus">
<emphasis id="05C59B37A976FF9328F0C759FB2DF9CD" box="[1019,1156,1556,1582]" italics="true" pageId="118" pageNumber="119">Cerithiopsis</emphasis>
</taxonomicName>
sp. 1 sensu
<bibRefCitation id="53203AD4A976FF932E04C759FEB3F9B0" author="Kollmann, H. A. &amp; Peel, J. S." pageId="118" pageNumber="119" pagination="1 - 115" refId="ref134023" refString="Kollmann, H. A. &amp; Peel, J. S. (1983) Paleocene gastropods from Nugssuaq, West Greenland. GrOnlands Geologiske UndersOgelse, Bulletin, 146, 1 - 115." type="journal article" year="1983">Kollmann &amp; Peel (1983)</bibRefCitation>
from West
<collectingCountry id="4FA607B5A976FF932AAAC775FDB0F9B1" box="[417,537,1592,1618]" name="Greenland" pageId="118" pageNumber="119">Greenland</collectingCountry>
, but
<taxonomicName id="F0B13CA6A976FF932959C774FD76F9B1" authority="Hansen, 2019" authorityName="Hansen" authorityYear="2019" box="[594,735,1592,1619]" class="Gastropoda" family="Newtoniellidae" genus="Cerithiella" kingdom="Animalia" pageId="118" pageNumber="119" phylum="Mollusca" rank="species" species="selandica" status="sp. nov.">
<emphasis id="05C59B37A976FF932959C774FDCCF9B0" box="[594,613,1593,1619]" italics="true" pageId="118" pageNumber="119">C</emphasis>
.
<emphasis id="05C59B37A976FF93297FC775FD76F9B1" box="[628,735,1592,1618]" italics="true" pageId="118" pageNumber="119">selandica</emphasis>
</taxonomicName>
<emphasis id="05C59B37A976FF9329E3C774FC81F9B0" bold="true" box="[744,808,1593,1619]" pageId="118" pageNumber="119">
<taxonomicNameLabel id="1EF6264CA976FF9329E3C774FC81F9B0" box="[744,808,1593,1619]" pageId="118" pageNumber="119" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
has fewer transverse ribs and the fourth primary spiral rib is not exposed before the final whorl. It differs from the Palaeocene
<taxonomicName id="F0B13CA6A976FF9328BDC711FA35F994" authority="Gronwall &amp; Harder, 1907" authorityName="Gronwall &amp; Harder" authorityYear="1907" box="[950,1436,1628,1655]" class="Gastropoda" family="Cerithiidae" genus="Cerithium" higherTaxonomySource="CoL" kingdom="Animalia" order="Littorinimorpha" pageId="118" pageNumber="119" phylum="Mollusca" rank="species" species="zigzag">
<emphasis id="05C59B37A976FF9328BDC711FBDFF995" box="[950,1142,1628,1654]" italics="true" pageId="118" pageNumber="119">Cerithium zigzag</emphasis>
<bibRefCitation id="53203AD4A976FF932F76C711FA35F994" author="Gronwall, K. A. &amp; Harder, P." box="[1149,1436,1628,1655]" pageId="118" pageNumber="119" pagination="1 - 102" refId="ref131261" refString="Gronwall, K. A. &amp; Harder, P. (1907) Paleocaen ved Rugaard i Jydland og dets Fauna. Danmarks geologiske UndersOgelse, II. Raekke, 18, i-viii + 1 - 102." type="journal article" year="1907">Grönwall &amp; Harder, 1907</bibRefCitation>
</taxonomicName>
from
<collectingCountry id="4FA607B5A976FF932BDFC7CDFE95F979" box="[212,316,1664,1690]" name="Denmark" pageId="118" pageNumber="119">Denmark</collectingCountry>
by the less concave spire profile; a slightly sharper transition between base and canal and by a denser transverse ribbing. Furthermore the growth lines appear in general to be straighter with a weaker bend at transition to base.
</paragraph>
<paragraph id="370E4725A976FF932BCCC7A1FC41F875" blockId="118.[151,1437,152,2015]" pageId="118" pageNumber="119">
This species may look somewhat similar to
<taxonomicName id="F0B13CA6A976FF9329B8C7A1FC11F8E5" baseAuthorityName="Ravn" baseAuthorityYear="1902" box="[691,952,1772,1798]" class="Gastropoda" family="Newtoniellidae" genus="Cerithiella" kingdom="Animalia" pageId="118" pageNumber="119" phylum="Mollusca" rank="species" species="moltkianum">
<emphasis id="05C59B37A976FF9329B8C7A1FC11F8E5" box="[691,952,1772,1798]" italics="true" pageId="118" pageNumber="119">Cerithiella moltkianum</emphasis>
</taxonomicName>
treated above, but differs in that spiral ribs 2 and 3 are closer to each other than spiral ribs 1 and 2; the number of transverse ribs on the adapical teleoconch whorls is normally lower and the whorls are generally higher and with a more pronounced keel. It is furthermore distinguished from the Late Cretaceous
<taxonomicName id="F0B13CA6A976FF93295DC615FC55F891" authority="Binkhorst, 1861" authorityName="Binkhorst" authorityYear="1861" box="[598,1020,1880,1907]" class="Gastropoda" family="Cerithiidae" genus="Cerithium" higherTaxonomySource="CoL" kingdom="Animalia" order="Littorinimorpha" pageId="118" pageNumber="119" phylum="Mollusca" rank="species" species="tectiforme">
<emphasis id="05C59B37A976FF93295DC615FCE8F890" box="[598,833,1880,1907]" italics="true" pageId="118" pageNumber="119">Cerithium tectiforme</emphasis>
<bibRefCitation id="53203AD4A976FF93284CC615FC55F891" author="Binkhorst, J. J. - T. van den" box="[839,1020,1880,1906]" pageId="118" pageNumber="119" refId="ref125366" refString="Binkhorst, J. J. - T. van den (1861) Monographie des gasteropodes et des cephalopodes de la craie superieure du Limbourg, suivie d'une description de quelques especes de crustaces du meme depot cretace, avec dix-huit planches dessinees et lithographiees par C. Hohe, de Bonn. Muquardt, Bruxelles and Muller Freres, Maastricht, 127 pp., 17 pls." type="book" year="1861">Binkhorst, 1861</bibRefCitation>
</taxonomicName>
from
<collectingCountry id="4FA607B5A976FF932F4BC615FB33F891" box="[1088,1178,1880,1906]" name="Netherlands" pageId="118" pageNumber="119">Holland</collectingCountry>
by the distinctly lower number of transverse ribs per whorl, though they are clearly closely related.
</paragraph>
<paragraph id="370E4725A976FF922BCCC6EDFC49FD80" blockId="118.[151,1437,152,2015]" lastBlockId="119.[151,1436,153,611]" lastPageId="119" lastPageNumber="120" pageId="118" pageNumber="119">
The teleoconch of
<taxonomicName id="F0B13CA6A976FF932A97C6EDFD21F859" authority="Hansen, 2019" authorityName="Hansen" authorityYear="2019" box="[412,648,1952,1978]" class="Gastropoda" family="Newtoniellidae" genus="Cerithiella" kingdom="Animalia" pageId="118" pageNumber="119" phylum="Mollusca" rank="species" species="selandica" status="sp. nov.">
<emphasis id="05C59B37A976FF932A97C6EDFD21F859" box="[412,648,1952,1978]" italics="true" pageId="118" pageNumber="119">Cerithiella selandica</emphasis>
</taxonomicName>
<emphasis id="05C59B37A976FF93299AC6ECFD78F858" bold="true" box="[657,721,1953,1979]" pageId="118" pageNumber="119">
<taxonomicNameLabel id="1EF6264CA976FF93299AC6ECFD78F858" box="[657,721,1953,1979]" pageId="118" pageNumber="119" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
closely resembles that of
<taxonomicName id="F0B13CA6A976FF9328F1C6EDFAE5F858" authority="Cossmann, 1889" authorityName="Cossmann" authorityYear="1889" box="[1018,1356,1952,1979]" class="Gastropoda" family="Cerithiidae" genus="Orthochetus" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="118" pageNumber="119" phylum="Mollusca" rank="genus">
<emphasis id="05C59B37A976FF9328F1C6EDFB2DF859" box="[1018,1156,1952,1978]" italics="true" pageId="118" pageNumber="119">Orthochetus</emphasis>
<bibRefCitation id="53203AD4A976FF932F86C6ECFAE5F858" author="Cossmann, M." box="[1165,1356,1953,1979]" pageId="118" pageNumber="119" pagination="3 - 385" refId="ref127106" refString="Cossmann, M. (1889) Catalogue illustre des coquilles fossiles de l'Eocene des environs de Paris. Annales de la Societe Royale Malacologique de Belgique, 24 (4), 3 - 385, pls. 1 - 12." type="journal article" year="1889">Cossmann, 1889</bibRefCitation>
</taxonomicName>
, which recently has been revised by
<bibRefCitation id="53203AD4A976FF932AD6C689FD24F83C" author="Darragh, T. A." box="[477,653,1988,2015]" pageId="118" pageNumber="119" pagination="35 - 42" refId="ref128356" refString="Darragh, T. A. (2011) Orthochetus (Gastropoda: Cerithiida) in the Eocene of southern Australia. New Zealand Journal of Geology and Geophysics, 54 (1), 35 - 42. https: // doi. org / 10.1080 / 00288306.2011.536519" type="journal article" year="2011">Darragh (2011)</bibRefCitation>
.
<bibRefCitation id="53203AD4A976FF932993C689FCECF83C" author="Darragh, T. A." box="[664,837,1988,2015]" pageId="118" pageNumber="119" pagination="35 - 42" refId="ref128356" refString="Darragh, T. A. (2011) Orthochetus (Gastropoda: Cerithiida) in the Eocene of southern Australia. New Zealand Journal of Geology and Geophysics, 54 (1), 35 - 42. https: // doi. org / 10.1080 / 00288306.2011.536519" type="journal article" year="2011">Darragh (2011)</bibRefCitation>
assigned several Palaeogene taxa to this genus based solely upon their teleoconch morphology and prominent keel, although recognizing that some species among the
<taxonomicName id="F0B13CA6A977FF922B9CC1F0FEB9FF34" authorityName="Verril" authorityYear="1882" box="[151,272,189,215]" class="Gastropoda" family="Newtoniellidae" genus="Cerithiella" kingdom="Animalia" pageId="119" pageNumber="120" phylum="Mollusca" rank="genus">
<emphasis id="05C59B37A977FF922B9CC1F0FEB9FF34" box="[151,272,189,215]" italics="true" pageId="119" pageNumber="120">Cerithiella</emphasis>
</taxonomicName>
strongly resembled them but for their multispiral protoconch.
<taxonomicName id="F0B13CA6A977FF9228EAC1F0FBC2FF34" authorityName="Cossmann" authorityYear="1889" box="[993,1131,189,215]" class="Gastropoda" family="Cerithiidae" genus="Orthochetus" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="119" pageNumber="120" phylum="Mollusca" rank="genus">
<emphasis id="05C59B37A977FF9228EAC1F0FBC2FF34" box="[993,1131,189,215]" italics="true" pageId="119" pageNumber="120">Orthochetus</emphasis>
</taxonomicName>
is characterized by a paucispiral protoconch. The
<typeStatus id="E80AF987A977FF922ABCC1ACFE4EFF18" box="[439,487,225,251]" pageId="119" pageNumber="120">type</typeStatus>
species
<taxonomicName id="F0B13CA6A977FF922940C1ACFC56FF18" authority="(Michelin, 1825)" baseAuthorityName="Michelin" baseAuthorityYear="1825" box="[587,1023,224,251]" class="Gastropoda" family="Cerithiidae" genus="Orthochetus" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="119" pageNumber="120" phylum="Mollusca" rank="species" species="leufroyi">
<emphasis id="05C59B37A977FF922940C1ACFC9CFF18" box="[587,821,225,251]" italics="true" pageId="119" pageNumber="120">Orthochetus leufroyi</emphasis>
(
<bibRefCitation id="53203AD4A977FF92284CC1ACFC5EFF18" author="Michelin, J. L. H." box="[839,1015,224,251]" pageId="119" pageNumber="120" refId="ref136045" refString="Michelin, J. L. H. (1825) Collection de M. Hardouin Michelin. Coquilles fossiles du Terrain Parisien, Paris, 1 pl. and explanation." type="book" year="1825">Michelin, 1825</bibRefCitation>
)
</taxonomicName>
from the Eocene of
<collectingCountry id="4FA607B5A977FF922FF9C1ACFA97FF18" box="[1266,1342,225,251]" name="France" pageId="119" pageNumber="120">France</collectingCountry>
and the morphologically most similar species
<taxonomicName id="F0B13CA6A977FF922934C048FBCEFEFC" authority="(Chapman &amp; Crespin, 1934)" baseAuthorityName="Chapman &amp; Crespin" baseAuthorityYear="1934" box="[575,1127,261,287]" class="Gastropoda" family="Cerithiidae" genus="Orthochetus" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="119" pageNumber="120" phylum="Mollusca" rank="species" species="pagoda">
<emphasis id="05C59B37A977FF922934C048FC8DFEFC" box="[575,804,261,287]" italics="true" pageId="119" pageNumber="120">Orthochetus pagoda</emphasis>
(
<bibRefCitation id="53203AD4A977FF922839C048FBF6FEFC" author="Chapman, F. &amp; Crespin, I." box="[818,1119,261,287]" pageId="119" pageNumber="120" pagination="103 - 136" refId="ref126652" refString="Chapman, F. &amp; Crespin, I. (1934) The palaeontology of the Plantagenet Beds of Western Australia. Journal of the Royal Society of Western Australia, 20, 103 - 136." type="journal article" year="1934">Chapman &amp; Crespin, 1934</bibRefCitation>
)
</taxonomicName>
from the Eocene of
<collectingCountry id="4FA607B5A977FF922E43C048FF1AFEA0" name="Australia" pageId="119" pageNumber="120">Australia</collectingCountry>
are furthermore distinguished by their aperture with its narrow and relatively long anterior canal and prominent columellar plate. The aperture may actually be more important as a diagnostic character from
<taxonomicName id="F0B13CA6A977FF922FCBC000FA90FE84" authorityName="Verril" authorityYear="1882" box="[1216,1337,333,359]" class="Gastropoda" family="Newtoniellidae" genus="Cerithiella" kingdom="Animalia" pageId="119" pageNumber="120" phylum="Mollusca" rank="genus">
<emphasis id="05C59B37A977FF922FCBC000FA90FE84" box="[1216,1337,333,359]" italics="true" pageId="119" pageNumber="120">Cerithiella</emphasis>
</taxonomicName>
than the prominent keel as a few recent species like
<taxonomicName id="F0B13CA6A977FF922975C03CFB8BFE68" authority="(Watson, 1880)" baseAuthorityName="Watson" baseAuthorityYear="1880" box="[638,1058,369,395]" class="Gastropoda" family="Newtoniellidae" genus="Cerithiella" kingdom="Animalia" pageId="119" pageNumber="120" phylum="Mollusca" rank="species" species="amblytera">
<emphasis id="05C59B37A977FF922975C03CFCD9FE68" box="[638,880,369,395]" italics="true" pageId="119" pageNumber="120">Cerithiella amblytera</emphasis>
(
<bibRefCitation id="53203AD4A977FF922875C03CFBB3FE68" author="Watson, R. B." box="[894,1050,369,395]" pageId="119" pageNumber="120" pagination="87 - 126" refId="ref143418" refString="Watson, R. B. (1880) Mollusca of H. M. S. ' Challenger' Expedition. V. Zoological Journal of the Linnean Society 15, 87 - 126. https: // doi. org / 10.1111 / j. 1096 - 3642.1880. tb 00346. x" type="journal article" year="1880">Watson, 1880</bibRefCitation>
)
</taxonomicName>
also developes a keel. The Maastrichtian
<taxonomicName id="F0B13CA6A977FF922BF7C0D8FDE3FE4C" authority="Binkhorst, 1861" authorityName="Binkhorst" authorityYear="1861" box="[252,586,405,431]" class="Gastropoda" family="Cerithiidae" genus="Cerithium" higherTaxonomySource="CoL" kingdom="Animalia" order="Littorinimorpha" pageId="119" pageNumber="120" phylum="Mollusca" rank="species" species="tectiforme">
<emphasis id="05C59B37A977FF922BF7C0D8FE27FE4C" box="[252,398,405,431]" italics="true" pageId="119" pageNumber="120">C. tectiforme</emphasis>
<bibRefCitation id="53203AD4A977FF922A9EC0D8FDE3FE4C" author="Binkhorst, J. J. - T. van den" box="[405,586,405,431]" pageId="119" pageNumber="120" refId="ref125366" refString="Binkhorst, J. J. - T. van den (1861) Monographie des gasteropodes et des cephalopodes de la craie superieure du Limbourg, suivie d'une description de quelques especes de crustaces du meme depot cretace, avec dix-huit planches dessinees et lithographiees par C. Hohe, de Bonn. Muquardt, Bruxelles and Muller Freres, Maastricht, 127 pp., 17 pls." type="book" year="1861">Binkhorst, 1861</bibRefCitation>
</taxonomicName>
from
<collectingCountry id="4FA607B5A977FF922985C0D8FD42FE4C" box="[654,747,405,431]" name="Netherlands" pageId="119" pageNumber="120">Holland</collectingCountry>
, the early Palaeocene
<emphasis id="05C59B37A977FF9228EFC0D8FC5EFE4C" box="[996,1015,405,431]" italics="true" pageId="119" pageNumber="120">C</emphasis>
. sp. 1 sensu
<bibRefCitation id="53203AD4A977FF922F8DC0D8FA35FE4C" author="Kollmann, H. A. &amp; Peel, J. S." box="[1158,1436,405,431]" pageId="119" pageNumber="120" pagination="1 - 115" refId="ref134023" refString="Kollmann, H. A. &amp; Peel, J. S. (1983) Paleocene gastropods from Nugssuaq, West Greenland. GrOnlands Geologiske UndersOgelse, Bulletin, 146, 1 - 115." type="journal article" year="1983">Kollmann &amp; Peel (1983)</bibRefCitation>
from
<collectingCountry id="4FA607B5A977FF922BDEC0F4FEE3FE30" box="[213,330,441,467]" name="Greenland" pageId="119" pageNumber="120">Greenland</collectingCountry>
and the Palaeocene
<taxonomicName id="F0B13CA6A977FF922924C0F4FBBEFE30" authority="Gronwall &amp; Harder, 1907" authorityName="Gronwall &amp; Harder" authorityYear="1907" box="[559,1047,441,467]" class="Gastropoda" family="Cerithiidae" genus="Cerithium" higherTaxonomySource="CoL" kingdom="Animalia" order="Littorinimorpha" pageId="119" pageNumber="120" phylum="Mollusca" rank="species" species="zigzag">
<emphasis id="05C59B37A977FF922924C0F4FD59FE30" box="[559,752,441,467]" italics="true" pageId="119" pageNumber="120">Cerithium zigzag</emphasis>
<bibRefCitation id="53203AD4A977FF9229FDC0F4FBBEFE30" author="Gronwall, K. A. &amp; Harder, P." box="[758,1047,441,467]" pageId="119" pageNumber="120" pagination="1 - 102" refId="ref131261" refString="Gronwall, K. A. &amp; Harder, P. (1907) Paleocaen ved Rugaard i Jydland og dets Fauna. Danmarks geologiske UndersOgelse, II. Raekke, 18, i-viii + 1 - 102." type="journal article" year="1907">Grönwall &amp; Harder, 1907</bibRefCitation>
</taxonomicName>
from
<collectingCountry id="4FA607B5A977FF922F57C0F4FB6DFE30" box="[1116,1220,441,467]" name="Denmark" pageId="119" pageNumber="120">Denmark</collectingCountry>
were reassigned to
<taxonomicName id="F0B13CA6A977FF922B9CC090FE88FE14" authorityName="Cossmann" authorityYear="1889" box="[151,289,477,503]" class="Gastropoda" family="Cerithiidae" genus="Orthochetus" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="119" pageNumber="120" phylum="Mollusca" rank="genus">
<emphasis id="05C59B37A977FF922B9CC090FE88FE14" box="[151,289,477,503]" italics="true" pageId="119" pageNumber="120">Orthochetus</emphasis>
</taxonomicName>
in spite of a lack of known protoconchs. They are all more likely belonging to
<taxonomicName id="F0B13CA6A977FF922FA1C090FA8AFE14" authority="Hansen, 2019" authorityName="Hansen" authorityYear="2019" box="[1194,1315,477,503]" class="Gastropoda" family="Newtoniellidae" genus="Cerithiella" kingdom="Animalia" pageId="119" pageNumber="120" phylum="Mollusca" rank="genus" sensu="lato">
<emphasis id="05C59B37A977FF922FA1C090FA8AFE14" box="[1194,1315,477,503]" italics="true" pageId="119" pageNumber="120">Cerithiella</emphasis>
</taxonomicName>
<taxonomicNameLabel id="1EF6264CA977FF922E27C090FA35FE14" box="[1324,1436,477,503]" pageId="119" pageNumber="120" sensu="lato">sensu lato</taxonomicNameLabel>
due to their stratigraphical and morphological closeness with the present species, but a definite generic assignment must wait until their protoconchs have been uncovered. Undoubted species of
<taxonomicName id="F0B13CA6A977FF922F0FC368FB27FDDC" authorityName="Cossmann" authorityYear="1889" box="[1028,1166,549,575]" class="Gastropoda" family="Cerithiidae" genus="Orthochetus" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="119" pageNumber="120" phylum="Mollusca" rank="genus">
<emphasis id="05C59B37A977FF922F0FC368FB27FDDC" box="[1028,1166,549,575]" italics="true" pageId="119" pageNumber="120">Orthochetus</emphasis>
</taxonomicName>
are restricted to the Eocene to perhaps the Oligocene of Europe and
<collectingCountry id="4FA607B5A977FF92299FC304FD52FD80" box="[660,763,585,611]" name="Australia" pageId="119" pageNumber="120">Australia</collectingCountry>
(see
<bibRefCitation id="53203AD4A977FF92283EC304FC7DFD80" author="Darragh, T. A." box="[821,980,585,611]" pageId="119" pageNumber="120" pagination="35 - 42" refId="ref128356" refString="Darragh, T. A. (2011) Orthochetus (Gastropoda: Cerithiida) in the Eocene of southern Australia. New Zealand Journal of Geology and Geophysics, 54 (1), 35 - 42. https: // doi. org / 10.1080 / 00288306.2011.536519" type="journal article" year="2011">Darragh 2011</bibRefCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>