187 lines
25 KiB
XML
187 lines
25 KiB
XML
<document id="646347194EAE68C40102E3004FEA32E4" ID-DOI="10.5070/P940561331" ID-ISSN="0031-0298" ID-Zenodo-Dep="10913477" ID-ZooBank="1756B24A-813B-423F-896F-91B21FF58A79" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1712169731283" checkinUser="felipe" docAuthor="Hickman, Carole S." docDate="2023" docId="C23987DDFFE12926FC4AFCF7EDB8B971" docLanguage="en" docName="PaleoBios.40.5.1-51.pdf" docOrigin="PaleoBios 40 (5)" docSource="http://dx.doi.org/10.5070/p940561331" docStyle="DocumentStyle:76F55B8832C4952BA7DD61B33E1F0E81.1:PaleoBios.2023-.journal_article" docStyleId="76F55B8832C4952BA7DD61B33E1F0E81" docStyleName="PaleoBios.2023-.journal_article" docStyleVersion="1" docTitle="Delectopecten STEWART 1930" docType="treatment" docVersion="2" lastPageNumber="25" masterDocId="3E00FFA5FFF8293CFF9FFFA4EE04BD6F" masterDocTitle="Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part II: The pteriomorphs" masterLastPageNumber="51" masterPageNumber="1" pageNumber="24" updateTime="1712170163329" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-NC-SA-4.0">
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<mods:title id="C0A4E94602E3C54377E2874AA75425E3">Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part II: The pteriomorphs</mods:title>
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<mods:namePart id="0CB1B43A2AC40427A0106E7C1865B5B1">Hickman, Carole S.</mods:namePart>
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<mods:title id="C7F7DF26D834F4586BFBCF5BE5DA79E2">PaleoBios</mods:title>
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<mods:part id="5122DF3512CD84836DBDF574EC5E2790">
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<mods:date id="D30E7D807C025B42760F0B9CA0CDF9F1">2023</mods:date>
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<mods:number id="8D4FA5C2DABF67CA5E4AB6F9E75ABE9C">2023-06-08</mods:number>
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<mods:identifier id="763D8E8E72424D2D1E14B23F4F16CC39" type="DOI">10.5070/P940561331</mods:identifier>
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<mods:identifier id="9862743CBAEF30416A74E098599B0867" type="ISSN">0031-0298</mods:identifier>
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<treatment id="C23987DDFFE12926FC4AFCF7EDB8B971" ID-DOI="http://doi.org/10.5281/zenodo.10913549" ID-Zenodo-Dep="10913549" LSID="urn:lsid:plazi:treatment:C23987DDFFE12926FC4AFCF7EDB8B971" httpUri="http://treatment.plazi.org/id/C23987DDFFE12926FC4AFCF7EDB8B971" lastPageId="26" lastPageNumber="25" pageId="25" pageNumber="24">
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<subSubSection id="028A6540FFE12925FC4AFCF7EB5FBE01" box="[981,1371,851,879]" pageId="25" pageNumber="24" type="nomenclature">
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<paragraph id="4A2F36CBFFE12925FC4AFCF7EB5FBE01" blockId="25.[981,1371,813,879]" box="[981,1371,851,879]" pageId="25" pageNumber="24">
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<heading id="116781A7FFE12925FC4AFCF7EB5FBE01" allCaps="true" box="[981,1371,851,879]" centered="true" fontSize="10" level="2" pageId="25" pageNumber="24" reason="2">
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<taxonomicName id="8D904D48FFE12925FC4AFCF7EB5FBE01" ID-CoL="7NVLY" authority="STEWART, 1930" authorityName="STEWART" authorityYear="1930" box="[981,1371,851,879]" class="Bivalvia" family="Pectinidae" genus="Delectopecten" kingdom="Animalia" order="Pectinida" pageId="25" pageNumber="24" phylum="Mollusca" rank="genus">
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<emphasis id="78E4EAD9FFE12925FC4AFCF7EAADBE00" box="[981,1193,851,879]" italics="true" pageId="25" pageNumber="24">DELECTOPECTEN</emphasis>
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STEWART, 1930
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</taxonomicName>
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</heading>
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</paragraph>
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</subSubSection>
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<caption id="1EEF6643FFE12925FFEFF8E3ED7EBAFB" ID-DOI="http://doi.org/10.5281/zenodo.10913513" ID-Zenodo-Dep="10913513" httpUri="https://zenodo.org/record/10913513/files/figure.png" pageId="25" pageNumber="24" startId="25.[112,187,1863,1887]" targetBox="[111,1521,917,1836]" targetPageId="25" targetType="figure">
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<paragraph id="4A2F36CBFFE12925FFEFF8E3ED7EBAFB" blockId="25.[112,1504,1863,1941]" pageId="25" pageNumber="24">
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<emphasis id="78E4EAD9FFE12925FFEFF8E3EEDBBA30" bold="true" box="[112,223,1863,1887]" pageId="25" pageNumber="24">Figure 15</emphasis>
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. Dense concentrations of mud pectens in matrix.
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<emphasis id="78E4EAD9FFE12925FD6FF8E3ED05BA30" bold="true" box="[752,769,1863,1887]" pageId="25" pageNumber="24">A</emphasis>
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.
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<taxonomicName id="8D904D48FFE12925FC94F8ECEA20BA0F" authority="Hickman, 2023" authorityName="Hickman" authorityYear="2023" box="[779,1060,1864,1888]" class="Bivalvia" family="Pectinidae" genus="Delectopecten" kingdom="Animalia" order="Pectinida" pageId="25" pageNumber="24" phylum="Mollusca" rank="species" species="keaseyorum" status="sp. nov.">
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<emphasis id="78E4EAD9FFE12925FC94F8ECEA20BA0F" box="[779,1060,1864,1888]" italics="true" pageId="25" pageNumber="24">Delectopecten keaseyorum</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="63D757A2FFE12925FBB5F8E3EA65BA31" box="[1066,1121,1863,1886]" pageId="25" pageNumber="24" rank="species">n. sp.</taxonomicNameLabel>
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in silty mudstone, middle member.
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<emphasis id="78E4EAD9FFE12925FFEFF8C6EE84BA15" bold="true" box="[112,128,1890,1914]" pageId="25" pageNumber="24">B</emphasis>
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.
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<taxonomicName id="8D904D48FFE12925FF14F8C7EFA0BA14" authorityName="Hickman" authorityYear="2023" box="[139,420,1891,1915]" class="Bivalvia" family="Pectinidae" genus="Delectopecten" kingdom="Animalia" order="Pectinida" pageId="25" pageNumber="24" phylum="Mollusca" rank="species" species="keaseyorum">
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<emphasis id="78E4EAD9FFE12925FF14F8C7EFA0BA14" box="[139,420,1891,1915]" italics="true" pageId="25" pageNumber="24">Delectopecten keaseyorum</emphasis>
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</taxonomicName>
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in tuffaceous siltstone.
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<emphasis id="78E4EAD9FFE12925FD3EF8C5ECB4BA16" bold="true" box="[673,688,1889,1913]" pageId="25" pageNumber="24">C</emphasis>
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.
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<taxonomicName id="8D904D48FFE12925FD25F8C7ED84BA14" authority="Hickman, 2023" authorityName="Hickman" authorityYear="2023" box="[698,896,1891,1915]" class="Bivalvia" family="Pectinidae" genus="Delectopecten" kingdom="Animalia" order="Pectinida" pageId="25" pageNumber="24" phylum="Mollusca" rank="species" species="kieli" status="sp. nov.">
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<emphasis id="78E4EAD9FFE12925FD25F8C7ED84BA14" box="[698,896,1891,1915]" italics="true" pageId="25" pageNumber="24">Delectopecten kieli</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="63D757A2FFE12925FC19F8C6EDB9BA16" box="[902,957,1890,1913]" pageId="25" pageNumber="24" rank="species">n. sp.</taxonomicNameLabel>
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in silty mudstone with echinoid spines.
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<emphasis id="78E4EAD9FFE12925FAF2F8C6EB7BBA15" bold="true" box="[1389,1407,1890,1914]" pageId="25" pageNumber="24">D</emphasis>
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.
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<taxonomicName id="8D904D48FFE12925FA16F8C7EEE3BAFA" authorityName="Hickman" authorityYear="2023" class="Bivalvia" family="Pectinidae" genus="Delectopecten" kingdom="Animalia" order="Pectinida" pageId="25" pageNumber="24" phylum="Mollusca" rank="species" species="kieli">
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<emphasis id="78E4EAD9FFE12925FA16F8C7EEE3BAFA" italics="true" pageId="25" pageNumber="24">Delectopecten kieli</emphasis>
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</taxonomicName>
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in silty mudstone with fish scales and bone. Scale bars= 1cm.
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</paragraph>
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</caption>
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<subSubSection id="028A6540FFE22926FF0FFF67EDB8B971" pageId="26" pageNumber="25" type="type_taxon">
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<paragraph id="4A2F36CBFFE22926FF0FFF67EC2ABC70" blockId="26.[112,801,193,1303]" pageId="26" pageNumber="25">
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<materialsCitation id="FAF83C96FFE22926FF0FFF67EC2FBC70" location="North Pacific. Pliocene" municipality="Holocene" pageId="26" pageNumber="25" specimenCount="1" stateProvince="California" typeStatus="holotype">
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<emphasis id="78E4EAD9FFE22926FF0FFF67EF3DBDB2" bold="true" box="[144,313,195,221]" pageId="26" pageNumber="25">
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<typeStatus id="952B8869FFE22926FF0FFF67EED7BDB2" box="[144,211,195,221]" pageId="26" pageNumber="25">Type</typeStatus>
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species
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</emphasis>
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—by original designation,
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<taxonomicName id="8D904D48FFE22926FDE2FF65EC9ABD90" ID-CoL="87Q8X" authority="Whiteaves (1793)" authorityName="Whiteaves" authorityYear="1793" class="Bivalvia" family="Pectinidae" genus="Pecten" kingdom="Animalia" order="Pectinida" pageId="26" pageNumber="25" phylum="Mollusca" rank="species" species="vancouverensis" subGenus="Pseudamussium">
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<emphasis id="78E4EAD9FFE22926FDE2FF65EFBABD90" italics="true" pageId="26" pageNumber="25">Pecten (Pseudamussium) vancouverensis</emphasis>
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Whiteaves (1793)
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</taxonomicName>
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.
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<collectingMunicipality id="AA4BACB1FFE22926FD38FF40ED18BD91" box="[679,796,228,254]" pageId="26" pageNumber="25">Holocene</collectingMunicipality>
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,
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<location id="4F4F6010FFE22926FFEFFEA1EF8CBC70" LSID="urn:lsid:plazi:treatment:C23987DDFFE12926FC4AFCF7EDB8B971:4F4F6010FFE22926FFEFFEA1EF8CBC70" box="[112,392,261,287]" municipality="Holocene" name="North Pacific. Pliocene" pageId="26" pageNumber="25" stateProvince="California">North Pacific. Pliocene</location>
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of
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<collectingRegion id="8854F829FFE22926FE31FEA1EC2FBC70" box="[430,555,261,287]" country="United States of America" name="California" pageId="26" pageNumber="25">California</collectingRegion>
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</materialsCitation>
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||
.
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</paragraph>
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<paragraph id="4A2F36CBFFE22926FF0FFE8DEFBEB92C" blockId="26.[112,801,193,1303]" pageId="26" pageNumber="25">
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A peculiar form of surface ornamentation, defined by Waller (1972b) as camptonectes microsculpture, covers the surface exterior of both valves in geometrically regular patterns of very fine foliated calcite striae (Waller 1972a, b). The striae are oblique or antimarginal, forming a variety of net-like patterns in which elements are neither radial (continuously produced) nor commarginal (periodically produced and conformable with the shell margin). Classifications of antimarginal sculpture are supported by computer simulations (e.g.,
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<bibRefCitation id="2E014B3AFFE22926FD17FDC6EF28BFF1" author="Hayami, I. & T. Okamoto" pageId="26" pageNumber="25" pagination="433 - 449" refId="ref30636" refString="Hayami, I., and T. Okamoto. 1986. Geometric regularity of some oblique sculptures in pectinid bivalves: recognition by computer simulations. Paleobiology 12 (4): 433 - 449." type="journal article" year="1986">Hayami and Okamoto 1986</bibRefCitation>
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) and theoretical morphospaces including camptonectes patterns (Ubukata 2005). Other forms of divergent sculpture occur on the exterior surface of bivalve shells, although their taxonomic significance is less clear than their microstructural expression and potential functional roles. However, the microscopic, foliated calcite striae, also referred to by some authors as “diverging scratches,” “radial scratches,” or “antimargial striae” (e.g.,
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<bibRefCitation id="2E014B3AFFE22926FE97FC38EFB5BED9" author="Dijkstra, H. H." box="[264,433,924,950]" pageId="26" pageNumber="25" pagination="1 - 57" refId="ref29445" refString="Dijkstra, H. H. 1991. A contribution to the knowledge of the pectinacean Mollusca (Bivalvia: Propeamussiidae, Entoliidae, Pectinidae) from the Indonesian Archipelago. Zoologische Verhandelingen Leiden 271 (24): 1 - 57, 94 figs." type="book chapter" year="1991">Dijkstra 1991</bibRefCitation>
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), are treated as a clade within
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<taxonomicName id="8D904D48FFE22926FFEFFC1BEEF2BEB6" ID-CoL="7NKCR" authorityName="RAFINESQUE" authorityYear="1815" box="[112,246,959,985]" class="Bivalvia" family="Pectinidae" kingdom="Animalia" order="Pectinida" pageId="26" pageNumber="25" phylum="Mollusca" rank="family">Pectinidae</taxonomicName>
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(e.g.,
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<bibRefCitation id="2E014B3AFFE22926FED6FC1BEFD3BEB6" author="Habe" box="[329,471,959,985]" pageId="26" pageNumber="25" refId="ref30409" refString="Habe. T. 1977. Systematics of Mollusca in Japan. Bivalvia and Scaphopoda. Tokyo. 372 pp., 72 pls." type="book" year="1977">Habe 1977</bibRefCitation>
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, Waller and Marincovich 1992,
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<bibRefCitation id="2E014B3AFFE22926FF5CFC46EC1ABE92" author="Dijkstra, H. H. & W. W. Kastoro" box="[195,542,994,1021]" pageId="26" pageNumber="25" pagination="245 - 285" refId="ref29564" refString="Dijkstra, H. H., and W. W. Kastoro. 1997. Mollusca Bivalvia: Pectinoidea (Propeaussiidae and Pectinidae) from eastern Indonesia. Pp. 245 - 285 in A. Crosnier and P. Bouchet (eds), Resultats des Campagnes Musorstom 16, Memoires du Museum National d'Histoire Naturelle 172: 245 - 285." type="journal article" year="1997">Dijkstra and Kastoro 1997</bibRefCitation>
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||
,
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||
<bibRefCitation id="2E014B3AFFE22926FDB0FC46EEB5B94F" author="Dijkstra, H. H. & S. Gofas" pageId="26" pageNumber="25" pagination="33 - 78" refId="ref29526" refString="Dijkstra, H. H., and S. Gofas. 2004. Pectinoidea (Bivalvia: Propeamussiidae and Pectinidae) from some northeastern Atlantic seamounts. Sarsia 89: 33 - 78, 22 figs." type="book chapter" year="2004">Dijkstra and Gofas 2004</bibRefCitation>
|
||
,
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||
<bibRefCitation id="2E014B3AFFE22926FF23FBA1EFF1B94F" author="Bouchet, P. & J-P. Rocroi" box="[188,501,1029,1056]" pageId="26" pageNumber="25" pagination="1 - 184" refId="ref27680" refString="Bouchet, P., and J-P. Rocroi. 2010. Nomenclator of Bivalve Families with a classification of bivalve families by Rudiger Bieler, Joseph G. Carter and Eugene V. Coan. Malacologia 52 (2): 1 - 184." type="journal article" year="2010">Bouchet and Rocroi 2010</bibRefCitation>
|
||
,
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||
<bibRefCitation id="2E014B3AFFE22926FD9EFBA2ECD2B94F" author="Carter, J. G." box="[513,726,1029,1056]" pageId="26" pageNumber="25" pagination="1 - 47" refId="ref28009" refString="Carter, J. G., and 50 additional authors. 2011. A synoptical classifi- cation of the Bivalvia (Mollusca), Paleontological Contributions 2011 (4): 1 - 47. University of Kansas, Paleontological Institute." type="journal article" year="2011">Carter et al. 2011</bibRefCitation>
|
||
,
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<bibRefCitation id="2E014B3AFFE22926FD7EFBA2EFADB92C" author="Coan, E. V. & P. Valentich-Scott" pageId="26" pageNumber="25" refId="ref28154" refString="Coan, E. V., and P. Valentich-Scott. 2012. Bivalve Seashells of Tropical West America. Marine Bivalve Mollusks from Baja California to Northern Peru. Santa Barbara Museum of Natural History Monographs 6. Studies in Biodiversity 4. Santa Barbara. California. 1258 pp." type="book" year="2012">Coan and Valentich-Scott 2012</bibRefCitation>
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||
).
|
||
</paragraph>
|
||
<paragraph id="4A2F36CBFFE22926FF0FFBE8EDEDBF7B" blockId="26.[112,801,193,1303]" lastBlockId="26.[832,1521,195,1054]" pageId="26" pageNumber="25">
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||
The North Pacific living and fossil
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<taxonomicName id="8D904D48FFE22926FDA7FBEFEEF9B9E5" ID-CoL="34FRJ" baseAuthorityName="Whiteaves" baseAuthorityYear="1893" class="Bivalvia" family="Pectinidae" genus="Delectopecten" kingdom="Animalia" order="Pectinida" pageId="26" pageNumber="25" phylum="Mollusca" rank="species" species="vancouverensis">
|
||
<emphasis id="78E4EAD9FFE22926FDA7FBEFEEF9B9E5" italics="true" pageId="26" pageNumber="25">Delectopecten vancouverensis</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<typeStatus id="952B8869FFE22926FE94FBD4EF46B9E5" box="[267,322,1136,1162]" pageId="26" pageNumber="25">type</typeStatus>
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||
species of the genus, has microscopic camptonectes sculpture on both valves (
|
||
<figureCitation id="D2AB2A4EFFE22926FDC4FB36ECE4B9C2" box="[603,736,1170,1197]" captionStart="Figure 16" captionStartId="26.[111,186,1863,1887]" captionTargetBox="[111,1518,1336,1834]" captionTargetId="figure-523@26.[111,1518,1336,1834]" captionTargetPageId="26" captionText="Figure 16. Delectopecten vancouverensis (Whiteaves, 1893), North Pacific live-collected, articulated representative of the type spe- cies of Delectopecten. SBMNH 130085. A. Left valve. B. Right valve. C. Enlargement of byssal notch with ctenolium (yellow circle). Scale bars=1 mm." figureDoi="http://doi.org/10.5281/zenodo.10913515" httpUri="https://zenodo.org/record/10913515/files/figure.png" pageId="26" pageNumber="25">Fig. 16A, B</figureCitation>
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) that is comparable to that of the new species in the Keasey Formation described below. The
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<typeStatus id="952B8869FFE22926FD97FB7DEC3BB99C" box="[520,575,1241,1267]" pageId="26" pageNumber="25">type</typeStatus>
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species also has a prominent anterior auricle (
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<figureCitation id="D2AB2A4EFFE22926FE56FB58EC35B878" box="[457,561,1276,1303]" captionStart="Figure 16" captionStartId="26.[111,186,1863,1887]" captionTargetBox="[111,1518,1336,1834]" captionTargetId="figure-523@26.[111,1518,1336,1834]" captionTargetPageId="26" captionText="Figure 16. Delectopecten vancouverensis (Whiteaves, 1893), North Pacific live-collected, articulated representative of the type spe- cies of Delectopecten. SBMNH 130085. A. Left valve. B. Right valve. C. Enlargement of byssal notch with ctenolium (yellow circle). Scale bars=1 mm." figureDoi="http://doi.org/10.5281/zenodo.10913515" httpUri="https://zenodo.org/record/10913515/files/figure.png" pageId="26" pageNumber="25">Fig. 16B</figureCitation>
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), deep byssal notch with ctenolium (
|
||
<figureCitation id="D2AB2A4EFFE22926FB93FF67EA72BDB1" box="[1036,1142,195,222]" captionStart="Figure 16" captionStartId="26.[111,186,1863,1887]" captionTargetBox="[111,1518,1336,1834]" captionTargetId="figure-523@26.[111,1518,1336,1834]" captionTargetPageId="26" captionText="Figure 16. Delectopecten vancouverensis (Whiteaves, 1893), North Pacific live-collected, articulated representative of the type spe- cies of Delectopecten. SBMNH 130085. A. Left valve. B. Right valve. C. Enlargement of byssal notch with ctenolium (yellow circle). Scale bars=1 mm." figureDoi="http://doi.org/10.5281/zenodo.10913515" httpUri="https://zenodo.org/record/10913515/files/figure.png" pageId="26" pageNumber="25">Fig. 16C</figureCitation>
|
||
), and poorly delineated posterior auricle that is continuous with the posterior margin of the disc (
|
||
<figureCitation id="D2AB2A4EFFE22926FC45FEACEA4EBC4C" box="[986,1098,264,291]" captionStart="Figure 16" captionStartId="26.[111,186,1863,1887]" captionTargetBox="[111,1518,1336,1834]" captionTargetId="figure-523@26.[111,1518,1336,1834]" captionTargetPageId="26" captionText="Figure 16. Delectopecten vancouverensis (Whiteaves, 1893), North Pacific live-collected, articulated representative of the type spe- cies of Delectopecten. SBMNH 130085. A. Left valve. B. Right valve. C. Enlargement of byssal notch with ctenolium (yellow circle). Scale bars=1 mm." figureDoi="http://doi.org/10.5281/zenodo.10913515" httpUri="https://zenodo.org/record/10913515/files/figure.png" pageId="26" pageNumber="25">Fig. 16A</figureCitation>
|
||
).
|
||
<taxonomicName id="8D904D48FFE22926FBFEFEA3EBD5BC4C" ID-CoL="34FRJ" baseAuthorityName="Whiteaves" baseAuthorityYear="1893" box="[1121,1489,263,291]" class="Bivalvia" family="Pectinidae" genus="Delectopecten" kingdom="Animalia" order="Pectinida" pageId="26" pageNumber="25" phylum="Mollusca" rank="species" species="vancouverensis">
|
||
<emphasis id="78E4EAD9FFE22926FBFEFEA3EBD5BC4C" box="[1121,1489,263,291]" italics="true" pageId="26" pageNumber="25">Delectopecten vancouverensis</emphasis>
|
||
</taxonomicName>
|
||
is especially pertinent to interpretation of Pacific coast fossil
|
||
<taxonomicName id="8D904D48FFE22926FC13FEEFEA3CBC08" ID-CoL="7NVLY" authorityName="STEWART" authorityYear="1930" box="[908,1080,331,359]" class="Bivalvia" family="Pectinidae" genus="Delectopecten" kingdom="Animalia" order="Pectinida" pageId="26" pageNumber="25" phylum="Mollusca" rank="genus">
|
||
<emphasis id="78E4EAD9FFE22926FC13FEEFEA3CBC08" box="[908,1080,331,359]" italics="true" pageId="26" pageNumber="25">Delectopecten</emphasis>
|
||
</taxonomicName>
|
||
because of its tolerance to severe hypoxic conditions (0.0–0.2 ml/l O2) (Suarez-Mozo et al. 2019). It occurs in assemblages that include chemosymbiotic solemyid and lucinid bivalves as well as other oxygen minimum zone taxa capable of tolerating hypoxia (Levin 2003).
|
||
</paragraph>
|
||
<paragraph id="4A2F36CBFFE22926FCFFFDBFEADBBEB7" blockId="26.[832,1521,195,1054]" pageId="26" pageNumber="25">
|
||
<taxonomicName id="8D904D48FFE22926FCFFFDBFEA0FBF58" ID-CoL="7NVLY" authorityName="STEWART" authorityYear="1930" box="[864,1035,539,567]" class="Bivalvia" family="Pectinidae" genus="Delectopecten" kingdom="Animalia" order="Pectinida" pageId="26" pageNumber="25" phylum="Mollusca" rank="genus">
|
||
<emphasis id="78E4EAD9FFE22926FCFFFDBFEA0FBF58" box="[864,1035,539,567]" italics="true" pageId="26" pageNumber="25">Delectopecten</emphasis>
|
||
</taxonomicName>
|
||
is cosmopolitan in distribution and has been considered a descendant of the Jurassic–Cretaceous
|
||
<emphasis id="78E4EAD9FFE22926FCDFFDC6EDE8BF11" box="[832,1004,610,638]" italics="true" pageId="26" pageNumber="25">Camptonectes</emphasis>
|
||
Agassiz in Meek (1864) (Waller 1972a, b). Although the Cenozoic fossil record of
|
||
<taxonomicName id="8D904D48FFE22926FADAFD27EBF4BFF0" ID-CoL="7NVLY" authorityName="STEWART" authorityYear="1930" box="[1349,1520,643,671]" class="Bivalvia" family="Pectinidae" genus="Delectopecten" kingdom="Animalia" order="Pectinida" pageId="26" pageNumber="25" phylum="Mollusca" rank="genus">
|
||
<emphasis id="78E4EAD9FFE22926FADAFD27EBF4BFF0" box="[1349,1520,643,671]" italics="true" pageId="26" pageNumber="25">Delectopecten</emphasis>
|
||
</taxonomicName>
|
||
is best documented taxonomically in strata of the west coast of North America (MacNeil 1967, E.J.Moore 1984b), it is well represented and often abundant in Japanese deep-water facies. However, Paleocene occurrences in
|
||
<collectingCountry id="3287765BFFE22926FCDFFC95EDB5BE24" box="[832,945,817,843]" name="Australia" pageId="26" pageNumber="25">Australia</collectingCountry>
|
||
(
|
||
<bibRefCitation id="2E014B3AFFE22926FC5AFC95EA71BE24" author="Darragh, T. A." box="[965,1141,817,843]" pageId="26" pageNumber="25" pagination="57 - 108" refId="ref29021" refString="Darragh, T. A. 1997. Gastropoda, Scaphopoda, Cephalopoda, and new Bivalvia of the Paleocnee Peeble Point Formation, Victoria, Australia. Proceedings of the Royal Society of Victoria 109: 57 - 108." type="journal article" year="1997">Darragh 1997</bibRefCitation>
|
||
) and
|
||
<collectingCountry id="3287765BFFE22926FB5EFC95EB39BE24" box="[1217,1341,817,843]" name="Argentina" pageId="26" pageNumber="25">Argentina</collectingCountry>
|
||
(del
|
||
<bibRefCitation id="2E014B3AFFE22926FA1FFC95ED85BE01" author="Rio, C. J. & A. G. Beu & S. A. Martinez" pageId="26" pageNumber="25" pagination="281 - 295" refId="ref29287" refString="del Rio, C. J., A. G. Beu, and S. A. Martinez. 2008. The pectinoidea genera Delectopecten Stewart, 1930 and Parvamussium Sacco, 1897 in the Danian of Northern Patagonia, Argentina. Neues Jahrbuch fur Geologie und Palaontologie 249 (3): 281 - 295." type="journal article" year="2008">Rio et al. 2008</bibRefCitation>
|
||
) as well as Late Cretaceous pectinids with camptonectes sculpture from
|
||
<collectingCountry id="3287765BFFE22926FBEEFCDCEB10BEFE" box="[1137,1300,887,914]" name="New Zealand" pageId="26" pageNumber="25">New Zealand</collectingCountry>
|
||
and the
|
||
<collectingRegion id="8854F829FFE22926FA1FFCD3ED9EBEDB" country="New Zealand" name="Chatham Islands" pageId="26" pageNumber="25">Chatham Islands</collectingRegion>
|
||
(
|
||
<bibRefCitation id="2E014B3AFFE22926FC30FC3FEA7CBEDA" author="Crampton, J. S." box="[943,1144,923,949]" pageId="26" pageNumber="25" pagination="965 - 1996" refId="ref28528" refString="Crampton, J. S. 1988. Comparative taxonomy of the bivalve families Isognonomidae, Inoceramidae, and Retroceramidae. Palaeontology 31: 965 - 1996." type="journal article" year="1988">Crampton 1988</bibRefCitation>
|
||
) are consistent with hypothesized long cosmopolitan history.
|
||
</paragraph>
|
||
<paragraph id="4A2F36CBFFE22926FCFFFC44EDB8B971" blockId="26.[832,1521,195,1054]" pageId="26" pageNumber="25">
|
||
<emphasis id="78E4EAD9FFE22926FCFFFC44EA6FBE94" bold="true" box="[864,1131,992,1019]" pageId="26" pageNumber="25">Stratigraphic range</emphasis>
|
||
—Lower Paleocene (Danian)– Holocene.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |