147 lines
16 KiB
XML
147 lines
16 KiB
XML
<document id="8E7B7B39E82987BB3D956F9976FAD6E1" ID="10.11646/zootaxa.4154.1.1" ID-DOI="10.11646/zootaxa.4154.1.1" ID-GBIF-Dataset="2b00120c-7a1a-4682-953c-c986155da6b6" ID-ISSN="1175-5326" ID-Zenodo-Dep="272151" ID-ZooBank="1FAB3228-9274-42D8-A2AF-AE19999E17E8" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1471501098894" checkinUser="plazi" docAuthor="Saether, Kristian P., Jingeng, Sha, Little, Crispin T. S. & Campbell, Kathleen A." docDate="2016" docId="086C87BA001B1765FF45FD59FD10F9D6" docLanguage="en" docName="zootaxa.4154.1.1.pdf" docOrigin="Zootaxa 4154 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Acesta saginata Marshall 2001" docType="treatment" docVersion="10" lastPageNumber="9" masterDocId="F455FFC20013176DFFD2FFDFFFECFF90" masterDocTitle="New records and a new species of bivalve (Mollusca: Bivalvia) from Miocene hydrocarbon seep deposits, North Island, New Zealand" masterLastPageNumber="26" masterPageNumber="1" pageNumber="9" updateTime="1698381922709" updateUser="plazi">
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<mods:title id="3D4E76DAA6AFE137DE182C8515D29D57">New records and a new species of bivalve (Mollusca: Bivalvia) from Miocene hydrocarbon seep deposits, North Island, New Zealand</mods:title>
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</mods:titleInfo>
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<mods:name id="CCB55920FCC5F68840E554D0940BB96E" type="personal">
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<mods:roleTerm id="E950F99E84651DC9981362CF14EBABF7">Author</mods:roleTerm>
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<mods:namePart id="22791BB45AA578274F12FF2758ED956B">Saether, Kristian P.</mods:namePart>
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<mods:roleTerm id="03711262D1DE7F1B873D629E08BAFD7E">Author</mods:roleTerm>
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<mods:namePart id="C35996346036DA9467AD67505E7E86FF">Jingeng, Sha</mods:namePart>
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<mods:namePart id="ACCDB9135F90E3BD0B4AF8F3D9AB8C5E">Little, Crispin T. S.</mods:namePart>
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<mods:name id="13BB308959140483186A12F900BC1F63" type="personal">
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<mods:namePart id="27C41F28707E419095CC0BDBA42B0399">Campbell, Kathleen A.</mods:namePart>
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<mods:typeOfResource id="9DD407EACB7C28C4D1331318282E8715">text</mods:typeOfResource>
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<mods:title id="9DFE2A9CAEB7142E91F93BFD0D336421">Zootaxa</mods:title>
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<mods:part id="7816673708636A5AF151F4F933CAF944">
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<mods:date id="AEFAD61FD76E810C9863C89FD488E336">2016</mods:date>
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<mods:detail id="11BF000D0981BA4F4F349603384C6252" type="volume">
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<mods:number id="E3C1851EBB207668A4CF7ACCE55B8D70">4154</mods:number>
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<mods:detail id="BE378CD31FE96699B8BC87CF2D763C0F" type="issue">
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<mods:number id="DB4B8FCF89F3C207E764A4503E0F465E">1</mods:number>
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<mods:classification id="F6A5078B2A53F56DE3798A5863EA52D4">journal article</mods:classification>
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<mods:identifier id="E488CEAF808982BA376AD51B14651065" type="DOI">10.11646/zootaxa.4154.1.1</mods:identifier>
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<mods:identifier id="847CF3D119413D1025B3EAF02915143E" type="ISSN">1175-5326</mods:identifier>
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<treatment id="086C87BA001B1765FF45FD59FD10F9D6" ID-DOI="http://doi.org/10.5281/zenodo.5676846" ID-GBIF-Taxon="124379733" ID-Zenodo-Dep="5676846" LSID="urn:lsid:plazi:treatment:086C87BA001B1765FF45FD59FD10F9D6" httpUri="http://treatment.plazi.org/id/086C87BA001B1765FF45FD59FD10F9D6" lastPageNumber="9" pageId="8" pageNumber="9">
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<subSubSection id="C8DF6527001B1765FF45FD59FF13FD52" pageId="8" pageNumber="9" type="nomenclature">
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<paragraph id="807A36AC001B1765FF45FD59FDD0FD30" blockId="8.[151,572,646,706]" box="[151,572,646,672]" pageId="8" pageNumber="9">
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<heading id="DB3281C0001B1765FF45FD59FDD0FD30" bold="true" box="[151,572,646,672]" fontSize="11" level="1" pageId="8" pageNumber="9" reason="1">
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<taxonomicName id="47C54D2F001B1765FF45FD59FDD0FD30" authority="Marshall, 2001" authorityName="Marshall" authorityYear="2001" box="[151,572,646,672]" class="Bivalvia" family="Limidae" genus="Acesta" kingdom="Animalia" order="Limoida" pageId="8" pageNumber="9" phylum="Mollusca" rank="species" species="saginata">
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<emphasis id="B2B1EABE001B1765FF45FD59FDD0FD30" bold="true" box="[151,572,646,672]" pageId="8" pageNumber="9">
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<emphasis id="B2B1EABE001B1765FF45FD59FF0BFD30" bold="true" box="[151,231,646,672]" italics="true" pageId="8" pageNumber="9">Acesta</emphasis>
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cf.
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<emphasis id="B2B1EABE001B1765FEC1FD59FE95FD30" bold="true" box="[275,377,646,672]" italics="true" pageId="8" pageNumber="9">saginata</emphasis>
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<bibRefCitation id="E4544B5D001B1765FE52FD59FDD0FD30" author="Marshall" box="[384,572,646,672]" pageId="8" pageNumber="9" refString="Marshall, B. A. (2001) The genus Acesta H. & A. Adams, 1858 in the south-west Pacific (Bivalvia: Limidae). In: Bouchet, P. & Marshall, B. A. (Eds.), Tropical deep-sea benthos. Vol. 22. Memoires du Museum National d'Histoire Naturelle, 185, pp. 97 - 109." type="journal article" year="2001">Marshall, 2001</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="807A36AC001B1765FF45FD76FF13FD52" blockId="8.[151,572,646,706]" box="[151,255,681,706]" pageId="8" pageNumber="9">
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(
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<figureCitation id="18FE2A29001B1765FF4DFD76FF0DFD52" box="[159,225,681,706]" captionStart="FIGURE 5" captionStartId="9.[151,250,1452,1474]" captionTargetBox="[155,1436,837,1424]" captionTargetId="figure@9.[155,1440,837,1425]" captionTargetPageId="9" captionText="FIGURE 5 Non-seep-typical bivalves found at Miocene New Zealand hydrocarbon seeps. A – B. cf. Pulvinites sp. from Moonlight North. Scale bar is 10 mm. A. Specimen L 4650. A 1. External view of shell. A 2. Internal view of shell. B. Specimen L 4651. B 1. Internal view of shell. B 2. Lateral view, showing thin laminae. C. Image of modern Pulvinites exempla (Hedley, 1914) for comparison. Specimen M. 281853, NMNZ (photography by K. P. S.). C 1. External view of shell. C 2. Lateral view, showing thin laminae. C 3. Internal view of shell. D. Acesta cf. saginata Marshall, 2001. Specimen L 4652 from Rocky Knob. Scale bar is 10 mm. D 1. Lateral view of right valve. D 2. Anterior view. D 3. Dorsal view. E. Parvamussium cf. maorium Dell, 1956. Scale bar is 2 mm. E 1. Specimen TM 9421 from Moonlight North, anteroventral portion absent. Lateral view of right valve. E 2. Image of modern Parvamussium maorium Dell, 1956 for comparison. Specimen M. 138360, NMNZ (photography by K. P. S.)." httpUri="https://zenodo.org/record/272156/files/figure.png" pageId="8" pageNumber="9">Fig. 5</figureCitation>
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D)
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</paragraph>
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</subSubSection>
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<subSubSection id="C8DF6527001B1765FF45FD2EFB8AFC9A" box="[151,1126,753,778]" pageId="8" pageNumber="9" type="materials_examined">
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<paragraph id="807A36AC001B1765FF45FD2EFB8AFC9A" blockId="8.[151,1437,753,1606]" box="[151,1126,753,778]" pageId="8" pageNumber="9">
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<emphasis id="B2B1EABE001B1765FF45FD2EFEEAFC9A" bold="true" box="[151,262,753,778]" pageId="8" pageNumber="9">Material.</emphasis>
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One specimen from Rocky Knob (Y16/f0642), medium sized, L4652, UOA.
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</paragraph>
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</subSubSection>
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<subSubSection id="C8DF6527001B1765FF15FCCAFB21FC72" pageId="8" pageNumber="9" type="description">
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<paragraph id="807A36AC001B1765FF15FCCAFB21FC72" blockId="8.[151,1437,753,1606]" pageId="8" pageNumber="9">
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<emphasis id="B2B1EABE001B1765FF15FCCAFEB5FCBE" bold="true" box="[199,345,789,814]" pageId="8" pageNumber="9">Description.</emphasis>
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Shell small for genus (H ≈ 70.0 mm, I ≈
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<quantity id="473D9B49001B1765FCFCFCC9FC6CFCBD" box="[814,896,790,814]" metricMagnitude="-2" metricUnit="m" metricValue="2.0" pageId="8" pageNumber="9" unit="mm" value="20.0">20 mm</quantity>
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; L ≈ 55.0 mm; see remarks below), shell length
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<emphasis id="B2B1EABE001B1765FF45FCE5FF54FCC1" box="[151,184,826,849]" italics="true" pageId="8" pageNumber="9">ca.</emphasis>
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80% of shell height, single valve inflation
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<emphasis id="B2B1EABE001B1765FD70FCE5FD28FCC1" box="[674,708,826,849]" italics="true" pageId="8" pageNumber="9">ca.</emphasis>
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20% of shell length (see remarks below); dorsal margin straight (running for short distance behind umbo before being eroded), nature of passage to posterior margin unknown; anterodorsal margin running at
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<emphasis id="B2B1EABE001B1765FDDEFC5DFDC2FC09" box="[524,558,898,921]" italics="true" pageId="8" pageNumber="9">ca.</emphasis>
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45° from umbo, gently convex, evenly rounded; other margins unknown; external sculpture unknown; finely spaced, subtly wavy, radial striae on shell interior, especially strong in anterior half of medial region, mostly obsolete elsewhere, a few very faint striae visible in posterior half.
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</paragraph>
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</subSubSection>
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<subSubSection id="C8DF6527001B1765FF15FC32FD10F9D6" pageId="8" pageNumber="9" type="discussion">
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<paragraph id="807A36AC001B1765FF15FC32FB04FB4E" blockId="8.[151,1437,753,1606]" pageId="8" pageNumber="9">
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<emphasis id="B2B1EABE001B1765FF15FC32FED7FB96" bold="true" box="[199,315,1005,1030]" pageId="8" pageNumber="9">Remarks.</emphasis>
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The single specimen is an internal mould of a left valve, with the ventral portion and auricle only partially preserved, leaving any attempt at specific identification tenuous. The fossil seep species is morphologically closest to
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<taxonomicName id="47C54D2F001B1765FE1EFBE9FCD4FBDE" authority="Marshall, 2001" authorityName="Marshall" authorityYear="2001" box="[460,824,1077,1102]" class="Bivalvia" family="Limidae" genus="Acesta" kingdom="Animalia" order="Limoida" pageId="8" pageNumber="9" phylum="Mollusca" rank="species" species="saginata">
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<emphasis id="B2B1EABE001B1765FE1EFBE9FD6CFBDD" box="[460,640,1078,1101]" italics="true" pageId="8" pageNumber="9">Acesta saginata</emphasis>
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<bibRefCitation id="E4544B5D001B1765FD5BFBEAFCD4FBDE" author="Marshall" box="[649,824,1077,1102]" pageId="8" pageNumber="9" refString="Marshall, B. A. (2001) The genus Acesta H. & A. Adams, 1858 in the south-west Pacific (Bivalvia: Limidae). In: Bouchet, P. & Marshall, B. A. (Eds.), Tropical deep-sea benthos. Vol. 22. Memoires du Museum National d'Histoire Naturelle, 185, pp. 97 - 109." type="journal article" year="2001">Marshall, 2001</bibRefCitation>
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</taxonomicName>
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, based upon the broadness of the beak in comparison with the other modern
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<collectingCountry id="F8D2763C001B1765FE44FB85FDC0FBE2" box="[406,556,1113,1138]" name="New Zealand" pageId="8" pageNumber="9">New Zealand</collectingCountry>
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species,
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<taxonomicName id="47C54D2F001B1765FD41FB85FC3CFBE2" authority="Marshall, 2001" authorityName="Marshall" authorityYear="2001" box="[659,976,1113,1138]" class="Bivalvia" family="Limidae" genus="Acesta" kingdom="Animalia" order="Limoida" pageId="8" pageNumber="9" phylum="Mollusca" rank="species" species="maui">
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<emphasis id="B2B1EABE001B1765FD41FB85FCF0FBE1" box="[659,796,1114,1137]" italics="true" pageId="8" pageNumber="9">Acesta maui</emphasis>
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<bibRefCitation id="E4544B5D001B1765FCF6FB86FC3CFBE2" author="Marshall" box="[804,976,1113,1138]" pageId="8" pageNumber="9" refString="Marshall, B. A. (2001) The genus Acesta H. & A. Adams, 1858 in the south-west Pacific (Bivalvia: Limidae). In: Bouchet, P. & Marshall, B. A. (Eds.), Tropical deep-sea benthos. Vol. 22. Memoires du Museum National d'Histoire Naturelle, 185, pp. 97 - 109." type="journal article" year="2001">Marshall, 2001</bibRefCitation>
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</taxonomicName>
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, and the four
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<collectingCountry id="F8D2763C001B1765FBB8FB85FAECFBE2" box="[1130,1280,1113,1138]" name="New Zealand" pageId="8" pageNumber="9">New Zealand</collectingCountry>
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fossil species (all narrower except
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<taxonomicName id="47C54D2F001B1765FEAFFBA1FDE4FB05" box="[381,520,1150,1173]" class="Bivalvia" family="Limidae" genus="Acesta" kingdom="Animalia" order="Limoida" pageId="8" pageNumber="9" phylum="Mollusca" rank="species" species="regia">
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<emphasis id="B2B1EABE001B1765FEAFFBA1FDE4FB05" box="[381,520,1150,1173]" italics="true" pageId="8" pageNumber="9">Acesta regia</emphasis>
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</taxonomicName>
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, in which it is broader). Also, of the two modern species,
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<taxonomicName id="47C54D2F001B1765FB5EFBA1FAE6FB05" box="[1164,1290,1150,1173]" class="Bivalvia" family="Limidae" genus="Acesta" kingdom="Animalia" order="Limoida" pageId="8" pageNumber="9" phylum="Mollusca" rank="species" species="saginata">
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<emphasis id="B2B1EABE001B1765FB5EFBA1FAE6FB05" box="[1164,1290,1150,1173]" italics="true" pageId="8" pageNumber="9">A. saginata</emphasis>
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</taxonomicName>
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has the most strongly internally reflected radial striae, which closely resemble the narrowly spaced striae on
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<taxonomicName id="47C54D2F001B1765FB12FB7DFA78FB29" box="[1216,1428,1185,1210]" class="Bivalvia" family="Limidae" genus="Acesta" kingdom="Animalia" order="Limoida" pageId="8" pageNumber="9" phylum="Mollusca" rank="species" species="saginata">
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<emphasis id="B2B1EABE001B1765FB12FB7DFAE7FB29" box="[1216,1291,1186,1209]" italics="true" pageId="8" pageNumber="9">Acesta</emphasis>
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cf.
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<emphasis id="B2B1EABE001B1765FAE6FB7DFA78FB29" box="[1332,1428,1186,1209]" italics="true" pageId="8" pageNumber="9">saginata</emphasis>
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</taxonomicName>
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. The nature and extent of internal reflections on the other
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<collectingCountry id="F8D2763C001B1765FCC4FB19FC40FB4E" box="[790,940,1221,1246]" name="New Zealand" pageId="8" pageNumber="9">New Zealand</collectingCountry>
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fossil species are unknown.
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</paragraph>
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<paragraph id="807A36AC001B1765FF15FB36FC9FFA4A" blockId="8.[151,1437,753,1606]" pageId="8" pageNumber="9">
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Estimations of the size of our specimen from the curvature of the antero- and posterodorsal flanks (either side of the narrow beak) and from the position of a faint muscle scar suggest that it was considerably smaller than the other New Zealand species, fossil and modern. The specimen also appears to be considerably less inflated than
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<taxonomicName id="47C54D2F001B1765FA56FAEDFF14FAFD" class="Bivalvia" family="Limidae" genus="Acesta" kingdom="Animalia" order="Limoida" pageId="8" pageNumber="9" phylum="Mollusca" rank="species" species="saginata">
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<emphasis id="B2B1EABE001B1765FA56FAEDFF14FAFD" italics="true" pageId="8" pageNumber="9">A. saginata</emphasis>
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</taxonomicName>
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notwithstanding their similar height vs. length ratios. Nonetheless, owing to a lack of complete specimens, these dimensions can only be regarded as approximate, especially inflation vs. length. The fine radial striae in the medial portion probably reflect a moderate to strong external radial sculpture, and their subtle waviness may indicate where weaker concentric elements cross the radials.
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</paragraph>
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<paragraph id="807A36AC001B1765FF15FA3AFD10F9D6" blockId="8.[151,1437,753,1606]" pageId="8" pageNumber="9">
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All four
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<collectingCountry id="F8D2763C001B1765FEF8FA39FE2DFA6E" box="[298,449,1509,1534]" name="New Zealand" pageId="8" pageNumber="9">New Zealand</collectingCountry>
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fossil species are older than those from the Rocky Knob deposit, the youngest records being from the Waitakian period (late Oligocene–early Miocene), but the two Recent species suggest that the genus has been present in
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<collectingCountry id="F8D2763C001B1765FEA6F9F1FDE5F9D6" box="[372,521,1581,1606]" name="New Zealand" pageId="8" pageNumber="9">New Zealand</collectingCountry>
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throughout this time.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |