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<document id="DAC00103FDD6B987C066798429E86BC8" ID-DOI="10.11646/zootaxa.3861.5.1" ID-GBIF-Dataset="0b368704-d9cc-4a82-8248-bc4c06dcf781" ID-ISSN="1175-5326" ID-Zenodo-Dep="252462" ID-ZooBank="E62DB6C3-0C5F-4898-99C4-1BEC70DD1734" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460912037909" checkinUser="plazi" docAuthor="Kaim, Andrzej, Jenkins, Robert G., Tanabe, Kazushige &amp; Kiel, Steffen" docDate="2014" docId="03F4372EFFF16856FF340605FAC8F994" docLanguage="en" docName="zt03861p440.pdf" docOrigin="Zootaxa 3861 (5)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Leionucula gabbi Stanton 1895" docType="treatment" docVersion="10" lastPageNumber="425" masterDocId="FFCD4F56FFE6684EFFA30151FFDCFFC8" masterDocTitle="Mollusks from late Mesozoic seep deposits, chiefly in California" masterLastPageNumber="440" masterPageNumber="401" pageNumber="424" updateTime="1698361398619" updateUser="plazi">
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<mods:title id="63DDA27AC218DC9B690A103B1CB2BBB8">Mollusks from late Mesozoic seep deposits, chiefly in California</mods:title>
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<mods:namePart id="59F904C92EB1E5EAE998E056E10A4A09">Kaim, Andrzej</mods:namePart>
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<mods:namePart id="1D573AD714FDB86034D08EC3D65CCFF3">Jenkins, Robert G.</mods:namePart>
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<mods:namePart id="F6BE8CD2E0057C0C1B0DD57C2000CCA7">Tanabe, Kazushige</mods:namePart>
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<mods:namePart id="936CC8C44EA040F771ADD1AEBD34E301">Kiel, Steffen</mods:namePart>
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<mods:date id="8D9C09DA4560451BF6DFCF89D6B9F4FA">2014</mods:date>
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<treatment id="03F4372EFFF16856FF340605FAC8F994" ID-DOI="http://doi.org/10.5281/zenodo.6127277" ID-GBIF-Taxon="119588557" ID-Zenodo-Dep="6127277" LSID="urn:lsid:plazi:treatment:03F4372EFFF16856FF340605FAC8F994" httpUri="http://treatment.plazi.org/id/03F4372EFFF16856FF340605FAC8F994" lastPageId="24" lastPageNumber="425" pageId="23" pageNumber="424">
<subSubSection id="C347D5B3FFF16859FF340605FD00F826" pageId="23" pageNumber="424" type="nomenclature">
<paragraph id="8BE28638FFF16859FF340605FDF3F8A6" blockId="23.[151,559,1876,1935]" box="[151,559,1876,1902]" pageId="23" pageNumber="424">
<heading id="D0AA3154FFF16859FF340605FDF3F8A6" bold="true" box="[151,559,1876,1902]" fontSize="11" level="1" pageId="23" pageNumber="424" reason="1">
<taxonomicName id="4C5DFDBBFFF16859FF340605FDF3F8A6" authority="Stanton, 1895" authorityName="Stanton" authorityYear="1895" box="[151,559,1876,1902]" class="Bivalvia" family="Nuculidae" genus="Leionucula" higherTaxonomySource="CoL" kingdom="Animalia" order="Nuculida" pageId="23" pageNumber="424" phylum="Mollusca" rank="species" species="gabbi">
<emphasis id="B9295A2AFFF16859FF340605FDF3F8A6" bold="true" box="[151,559,1876,1902]" pageId="23" pageNumber="424">
<emphasis id="B9295A2AFFF16859FF340605FEB0F8A6" bold="true" box="[151,364,1876,1902]" italics="true" pageId="23" pageNumber="424">Leionucula gabbi</emphasis>
(
<bibRefCitation id="EFCCFBC9FFF16859FED90605FDFBF8A6" author="Stanton" box="[378,551,1876,1902]" pageId="23" pageNumber="424" refString="Stanton, T. W. (1895) Contributions to the Cretaceous paleontology of the Pacific coast: the fauna of the Knoxville beds. Bulletin of the United States Geological Survey, 133, 1 - 132." type="journal article" year="1895">Stanton, 1895</bibRefCitation>
)
</emphasis>
</taxonomicName>
</heading>
</paragraph>
<paragraph id="8BE28638FFF16859FF340627FF24F847" blockId="23.[151,559,1876,1935]" box="[151,248,1910,1935]" pageId="23" pageNumber="424">
(
<figureCitation id="13669ABDFFF16859FF3C0627FF2DF847" box="[159,241,1910,1935]" captionStart="FIGURE 12" captionStartId="25.[151,250,1380,1402]" captionTargetBox="[341,1248,415,1346]" captionTargetId="figure@25.[341,1248,415,1347]" captionTargetPageId="25" captionText="FIGURE 12. Leionucula gabbi (Stanton, 1895) from Tithonian seep carbonates of Paskenta. A, B. Specimen showing external sculpture and escutcheon (GZG. INV. 84998). C. Internal mold showing pallial line and adductor muscle scars (GZG. INV. 84999)." httpUri="https://zenodo.org/record/252474/files/figure.png" pageId="23" pageNumber="424">Fig. 12</figureCitation>
)
</paragraph>
<paragraph id="8BE28638FFF16859FF3406E8FD00F826" blockId="23.[151,732,1977,2030]" pageId="23" pageNumber="424">
1895
<taxonomicName id="4C5DFDBBFFF16859FF7306E8FE72F807" authority="Stanton" authorityName="Stanton" box="[208,430,1977,1999]" class="Bivalvia" family="Nuculidae" genus="Nucula" kingdom="Animalia" order="Nuculida" pageId="23" pageNumber="424" phylum="Mollusca" rank="species" species="gabbi">
<emphasis id="B9295A2AFFF16859FF7306E8FE85F807" box="[208,345,1977,1999]" italics="true" pageId="23" pageNumber="424">Nucula gabbi</emphasis>
Stanton
</taxonomicName>
, p. 5152, pl. 6, figs. 11, 12. 1961
<taxonomicName id="4C5DFDBBFFF16859FF730689FD57F826" authority="Stanton, Chandler &amp; Axelrod" authorityName="Stanton, Chandler &amp; Axelrod" box="[208,651,2008,2030]" class="Bivalvia" family="Nuculidae" genus="Nucula" kingdom="Animalia" order="Nuculida" pageId="23" pageNumber="424" phylum="Mollusca" rank="species" species="gabbi">
<emphasis id="B9295A2AFFF16859FF730689FE85F826" box="[208,345,2008,2030]" italics="true" pageId="23" pageNumber="424">Nucula gabbi</emphasis>
Stanton, Chandler &amp; Axelrod
</taxonomicName>
, p. 442.
</paragraph>
</subSubSection>
<caption id="DF22D6B0FFFE6856FF340548FD50FBA4" httpUri="https://zenodo.org/record/252473/files/figure.png" pageId="24" pageNumber="425" targetBox="[151,1436,195,1027]" targetPageId="24">
<paragraph id="8BE28638FFFE6856FF340548FD50FBA4" blockId="24.[151,1436,1049,1132]" pageId="24" pageNumber="425">
<emphasis id="B9295A2AFFFE6856FF340548FEFEFBE7" bold="true" box="[151,290,1049,1071]" pageId="24" pageNumber="425">FIGURE 11.</emphasis>
<taxonomicName id="4C5DFDBBFFFE6856FE8F0548FE53FBE7" box="[300,399,1049,1071]" class="Bivalvia" family="Manzanellidae" genus="Nucinella" kingdom="Animalia" order="Solemyoida" pageId="24" pageNumber="425" phylum="Mollusca" rank="genus">
<emphasis id="B9295A2AFFFE6856FE8F0548FE53FBE7" box="[300,399,1049,1071]" italics="true" pageId="24" pageNumber="425">Nucinella</emphasis>
</taxonomicName>
sp. from Late Barremian (Early Cretaceous) seep site at Eagle Creek, Shasta County, California, USA.
<emphasis id="B9295A2AFFFE6856FF730566FF21FB85" bold="true" box="[208,253,1079,1101]" pageId="24" pageNumber="425">A-C</emphasis>
Lateral and dorsal view of CAS 73135.
<emphasis id="B9295A2AFFFE6856FD0F0566FD39FB85" bold="true" box="[684,741,1079,1101]" pageId="24" pageNumber="425">D, E.</emphasis>
Views of lateral aspect (
<emphasis id="B9295A2AFFFE6856FC4E0566FC23FB85" bold="true" box="[1005,1023,1079,1101]" pageId="24" pageNumber="425">D</emphasis>
) and hinge area (
<emphasis id="B9295A2AFFFE6856FB180566FB10FB85" bold="true" box="[1211,1228,1079,1101]" pageId="24" pageNumber="425">E</emphasis>
) of CAS 73136.
<emphasis id="B9295A2AFFFE6856FA270566FA47FB85" bold="true" box="[1412,1435,1079,1101]" pageId="24" pageNumber="425">E.</emphasis>
Specimen displaying taxodont teeth below umbo.
</paragraph>
</caption>
<subSubSection id="C347D5B3FFFE6856FF3405C2FC7FFB3C" pageId="24" pageNumber="425" type="materials_examined">
<paragraph id="8BE28638FFFE6856FF3405C2FC7FFB3C" blockId="24.[151,1436,1171,1628]" pageId="24" pageNumber="425">
<emphasis id="B9295A2AFFFE6856FF3405C2FE08FB64" bold="true" box="[151,468,1171,1196]" pageId="24" pageNumber="425">Material and occurrence.</emphasis>
Two specimens from Paskenta (Tithonian, Late Jurassic). Stantons (1895)
<typeStatus id="54E6389AFFFE6856FACF05C5FA40FB64" box="[1388,1436,1172,1196]" pageId="24" pageNumber="425">type</typeStatus>
material (
<collectionCode id="ED4C1EFDFFFE6856FEA705E9FE8BFB18" LSID="urn:lsid:biocol.org:col:34871" box="[260,343,1208,1232]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34871" name="Smithsonian Institution, National Museum of Natural History" pageId="24" pageNumber="425">USNM</collectionCode>
23047) is also from Paskenta and consists of two specimens: one has been illustrated and the other has been cut along the hinge area and shows taxodont dentition.
</paragraph>
</subSubSection>
<subSubSection id="C347D5B3FFFE6856FF6405AEFAC8F994" pageId="24" pageNumber="425" type="discussion">
<paragraph id="8BE28638FFFE6856FF6405AEFCBCFA60" blockId="24.[151,1436,1171,1628]" pageId="24" pageNumber="425">
<emphasis id="B9295A2AFFFE6856FF6405AEFEE7FAD0" bold="true" box="[199,315,1279,1304]" pageId="24" pageNumber="425">Remarks.</emphasis>
One of the specimens illustrated here (
<figureCitation id="13669ABDFFFE6856FD5205AEFC9EFAD0" box="[753,834,1279,1304]" captionStart="FIGURE 12" captionStartId="25.[151,250,1380,1402]" captionTargetBox="[341,1248,415,1346]" captionTargetId="figure@25.[341,1248,415,1347]" captionTargetPageId="25" captionText="FIGURE 12. Leionucula gabbi (Stanton, 1895) from Tithonian seep carbonates of Paskenta. A, B. Specimen showing external sculpture and escutcheon (GZG. INV. 84998). C. Internal mold showing pallial line and adductor muscle scars (GZG. INV. 84999)." httpUri="https://zenodo.org/record/252474/files/figure.png" pageId="24" pageNumber="425">Fig. 12</figureCitation>
) shows two slightly oval adductor muscle scars and a well-developed, uninterrupted pallial line, features not illustrated by Stanton.
<taxonomicName id="4C5DFDBBFFFE6856FBB30472FBBDFAF4" box="[1040,1121,1315,1340]" class="Bivalvia" family="Nuculidae" genus="Nucula" kingdom="Animalia" order="Nuculida" pageId="24" pageNumber="425" phylum="Mollusca" rank="genus">
<emphasis id="B9295A2AFFFE6856FBB30472FBBDFAF4" box="[1040,1121,1315,1340]" italics="true" pageId="24" pageNumber="425">Nucula</emphasis>
</taxonomicName>
<taxonomicName id="4C5DFDBBFFFE6856FBC80472FB77FAF4" box="[1131,1195,1315,1340]" class="Bivalvia" family="Nuculidae" genus="Nucula" kingdom="Animalia" order="Nuculida" pageId="24" pageNumber="425" phylum="Mollusca" rank="species" species="gabbi">
<emphasis id="B9295A2AFFFE6856FBC80472FB77FAF4" box="[1131,1195,1315,1340]" italics="true" pageId="24" pageNumber="425">gabbi</emphasis>
</taxonomicName>
is characterized by a smooth surface except for blunt irregular growth lines and a non-crenulated inner margin, and is therefore transferred to
<taxonomicName id="4C5DFDBBFFFE6856FE97043AFE6EFA4C" box="[308,434,1387,1412]" class="Bivalvia" family="Nuculidae" genus="Leionucula" higherTaxonomySource="CoL" kingdom="Animalia" order="Nuculida" pageId="24" pageNumber="425" phylum="Mollusca" rank="genus">
<emphasis id="B9295A2AFFFE6856FE97043AFE6EFA4C" box="[308,434,1387,1412]" italics="true" pageId="24" pageNumber="425">Leionucula</emphasis>
</taxonomicName>
. The species has been mentioned by
<bibRefCitation id="EFCCFBC9FFFE6856FCF5043AFB52FA4C" author="Chandler" box="[854,1166,1387,1412]" pageId="24" pageNumber="425" refString="Chandler, M. E. J. &amp; Axelrod, D. I. (1961) An Early Cretaceous (Hauterivian) angiosperm fruit from California. American Journal of Science, 259, 441 - 446. http: // dx. doi. org / 10.2475 / ajs. 259.6.441" type="journal article" year="1961">Chandler &amp; Axelrod (1961)</bibRefCitation>
from Hauterivian strata of the Ono area, in the vicinity of the Eagle Creek seep locality.
</paragraph>
<paragraph id="8BE28638FFFE6856FF6404E5FAC8F994" blockId="24.[151,1436,1171,1628]" pageId="24" pageNumber="425">
As mentioned by Stanton,
<taxonomicName id="4C5DFDBBFFFE6856FE5904E4FCD8FA04" authority="Gabb 1869" authorityName="Gabb" authorityYear="1869" box="[506,772,1459,1484]" class="Bivalvia" family="Nuculidae" genus="Nucula" kingdom="Animalia" order="Nuculida" pageId="24" pageNumber="425" phylum="Mollusca" rank="species" species="solitaria">
<emphasis id="B9295A2AFFFE6856FE5904E4FDA0FA04" box="[506,636,1459,1484]" italics="true" pageId="24" pageNumber="425">N. solitaria</emphasis>
<bibRefCitation id="EFCCFBC9FFFE6856FD2604E2FCD8FA04" author="Gabb" box="[645,772,1459,1484]" pageId="24" pageNumber="425" refString="Gabb, W. M. (1869) Cretaceous and Tertiary fossils. California Geological Survey, Paleontology, 2, 1 - 299." type="journal article" year="1869">Gabb 1869</bibRefCitation>
</taxonomicName>
differs by having widely spaced strong commarginal ribs with fine striae in between, but he also noted that the figure of
<taxonomicName id="4C5DFDBBFFFE6856FCC50489FC3BFA38" box="[870,999,1495,1520]" class="Bivalvia" family="Nuculidae" genus="Nucula" kingdom="Animalia" order="Nuculida" pageId="24" pageNumber="425" phylum="Mollusca" rank="species" species="solitaria">
<emphasis id="B9295A2AFFFE6856FCC50489FC3BFA38" box="[870,999,1495,1520]" italics="true" pageId="24" pageNumber="425">N. solitaria</emphasis>
</taxonomicName>
given by
<bibRefCitation id="EFCCFBC9FFFE6856FBF90486FECCF9DC" author="Whiteaves" pageId="24" pageNumber="425" refString="Whiteaves, J. F. (1884) Pt. III. On the fossils of the coal-bearing deposits of the Queen Charlotte Islands collected by Dr. G. M. Dawson in 1878. Mesozoic fossils. Geological Survey of Canada, 1 (3), 191 - 262." type="journal article" year="1884" yearSuffix="p">Whiteaves (1884, p. 232, pl. 31, fig. 3)</bibRefCitation>
from Queen Charlotte Island,
<collectingCountry id="F34AC6A8FFFE6856FD2704AAFD07F9DC" box="[644,731,1531,1556]" name="Canada" pageId="24" pageNumber="425">Canada</collectingCountry>
, is quite similar to
<taxonomicName id="4C5DFDBBFFFE6856FC6F04AAFB4BF9DC" box="[972,1175,1531,1556]" class="Bivalvia" family="Nuculidae" genus="Leionucula" higherTaxonomySource="CoL" kingdom="Animalia" order="Nuculida" pageId="24" pageNumber="425" phylum="Mollusca" rank="species" species="gabbi">
<emphasis id="B9295A2AFFFE6856FC6F04AAFB4BF9DC" box="[972,1175,1531,1556]" italics="true" pageId="24" pageNumber="425">Leionucula gabbi</emphasis>
</taxonomicName>
, which, judging from Whiteaves figure, is indeed the case. The Cenomanian species
<taxonomicName id="4C5DFDBBFFFE6856FCF4074EFA82F9F0" authority="Stilwell &amp; Henderson, 2002" authorityName="Stilwell &amp; Henderson" authorityYear="2002" box="[855,1374,1567,1592]" class="Bivalvia" family="Nuculidae" genus="Nucula" kingdom="Animalia" order="Nuculida" pageId="24" pageNumber="425" phylum="Mollusca" rank="species" species="maedinga">
<emphasis id="B9295A2AFFFE6856FCF4074EFBC1F9F0" box="[855,1053,1567,1592]" italics="true" pageId="24" pageNumber="425">Nucula maedinga</emphasis>
<bibRefCitation id="EFCCFBC9FFFE6856FB87074EFA82F9F0" author="Stilwell" box="[1060,1374,1567,1592]" pageId="24" pageNumber="425" refString="Stilwell, J. &amp; Henderson, R. A. (2002) Description and paleobiogeographic significance of a rare Cenomanian molluscan faunule from Bathurst Island, Northern Australia. Journal of Paleontology, 76, 447 - 471. http: // dx. doi. org / 10.1666 / 0022 - 3360 (2002) 076 &lt;0447: dapsoa&gt; 2.0. co; 2" type="journal article" year="2002">Stilwell &amp; Henderson, 2002</bibRefCitation>
</taxonomicName>
from northern
<collectingCountry id="F34AC6A8FFFE6856FF5F0712FEBFF994" box="[252,355,1603,1628]" name="Australia" pageId="24" pageNumber="425">Australia</collectingCountry>
differs by having a fine, beaded, undulating sculpture (
<bibRefCitation id="EFCCFBC9FFFE6856FC6D0712FAD4F994" author="Stilwell" box="[974,1288,1603,1628]" pageId="24" pageNumber="425" refString="Stilwell, J. &amp; Henderson, R. A. (2002) Description and paleobiogeographic significance of a rare Cenomanian molluscan faunule from Bathurst Island, Northern Australia. Journal of Paleontology, 76, 447 - 471. http: // dx. doi. org / 10.1666 / 0022 - 3360 (2002) 076 &lt;0447: dapsoa&gt; 2.0. co; 2" type="journal article" year="2002">Stilwell &amp; Henderson 2002</bibRefCitation>
).
</paragraph>
</subSubSection>
</treatment>
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