151 lines
18 KiB
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151 lines
18 KiB
XML
<document id="CBA32DD430025747D81FE1FCC553C819" ID-DOI="10.35463/j.apr.2019.01.04" ID-ISSN="1842-371x" ID-Zenodo-Dep="10520604" IM.bibliography_approvedBy="juliana" IM.illustrations_approvedBy="juliana" IM.metadata_approvedBy="juliana" IM.taxonomicNames_approvedBy="juliana" IM.treatments_approvedBy="juliana" checkinTime="1705449489497" checkinUser="felipe" docAuthor="Dumitrica, Paulian" docDate="2019" docId="1F21C405C341FF803D28CBD9B0FBAD20" docLanguage="en" docName="ActaPalaeontolRom.15.1.39-60.pdf" docOrigin="Acta Palaeontologica Romaniae 15 (1)" docSource="http://dx.doi.org/10.35463/j.apr.2019.01.04" docStyle="DocumentStyle:CA474AAD92E97C533D63E0C5C0F159F1.1:ActaPalaeontolRom.2019-.journal_article" docStyleId="CA474AAD92E97C533D63E0C5C0F159F1" docStyleName="ActaPalaeontolRom.2019-.journal_article" docStyleVersion="1" docTitle="Excentrococcus annulatus Dumitrica 1978" docType="treatment" docVersion="3" lastPageNumber="54" masterDocId="E318BC7DC34EFF8F3E18C953B35FA503" masterDocTitle="Cenozoic Spumellarian Radiolaria With Eccentric Microsphere" masterLastPageNumber="60" masterPageNumber="39" pageNumber="54" updateTime="1706701562277" updateUser="juliana" zenodo-license-document="CC-BY-4.0">
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<mods:titleInfo id="E4650908E2DF49FCE063940C90B27D8A">
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<mods:title id="CA096AE2CE0106AFA164FA9A160DF327">Cenozoic Spumellarian Radiolaria With Eccentric Microsphere</mods:title>
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<mods:namePart id="196D73DC7D0D76CEA6804BA3329A2CD7">Dumitrica, Paulian</mods:namePart>
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<mods:affiliation id="D0C6D4CF57FE981F7038C70DBD9211DA">Institute of Earth Sciences, Université de Lausanne, Géopolis, 1015 Lausanne, Switzerland; mailing address: Dennigkofenweg 33, 3073 Gümligen, Switzerland</mods:affiliation>
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<mods:nameIdentifier id="ACCE25D2D2568CA78A323AE78B7A0B71" type="email">Paulian.Dumitrica@unil.ch</mods:nameIdentifier>
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<mods:title id="90C37631F40B5BAF72499348CB2D50AB">Acta Palaeontologica Romaniae</mods:title>
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<mods:date id="509C81CD6E0563D23906B671ADCEFBAB">2019</mods:date>
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<mods:url id="F40F5CCAB814EF96B6E1ECCD45572E29">http://dx.doi.org/10.35463/j.apr.2019.01.04</mods:url>
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<mods:identifier id="4D6339A1AA05514F4756B2AF7EC808A3" type="DOI">10.35463/j.apr.2019.01.04</mods:identifier>
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<treatment id="1F21C405C341FF803D28CBD9B0FBAD20" LSID="urn:lsid:plazi:treatment:1F21C405C341FF803D28CBD9B0FBAD20" httpUri="http://treatment.plazi.org/id/1F21C405C341FF803D28CBD9B0FBAD20" lastPageNumber="54" pageId="15" pageNumber="54">
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<subSubSection id="DF922698C341FF803D28CBD9B659A7A2" box="[816,1286,649,673]" pageId="15" pageNumber="54" type="nomenclature">
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<paragraph id="97377513C341FF803D28CBD9B659A7A2" blockId="15.[816,1286,649,673]" box="[816,1286,649,673]" pageId="15" pageNumber="54">
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<heading id="CC7FC27FC341FF803D28CBD9B659A7A2" box="[816,1286,649,673]" fontSize="10" level="2" pageId="15" pageNumber="54" reason="5">
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<taxonomicName id="50880E90C341FF803D28CBD9B65DA7A2" ID-CoL="8PBSB" authority="Dumitrica, 1978" authorityName="Dumitrica" authorityYear="1978" box="[816,1282,649,673]" family="Heliodiscidae" genus="Excentrococcus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Spumellaria" pageId="15" pageNumber="54" rank="species" species="annulatus">
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<emphasis id="A5FCA901C341FF803D28CBD9B716A7A2" box="[816,1097,649,673]" italics="true" pageId="15" pageNumber="54">Excentrococcus annulatus</emphasis>
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<bibRefCitation id="F31908E2C341FF803A48CBDAB65DA7A2" author="Dumitrica, P." box="[1104,1282,649,673]" pageId="15" pageNumber="54" pagination="231 - 261" refId="ref14111" refString="Dumitrica, P., 1978. Badenian Radiolaria from Central Paratethys. In: E. Brestenska (ed.) Chronostratigraphie und Neostratotypen. Miozan der Zentralen Paratethys, Bd. 6, Miozan M 4 - Badenien: 231 - 261, VEDA Bratislava." type="book chapter" year="1978">Dumitrică, 1978</bibRefCitation>
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</taxonomicName>
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.
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="DF922698C341FF803D28CBF4B0FBAD20" pageId="15" pageNumber="54" type="description">
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<paragraph id="97377513C341FF803D28CBF4B098A7BC" blockId="15.[816,1437,679,2083]" box="[816,967,679,703]" pageId="15" pageNumber="54">
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<figureCitation id="0FB36996C341FF803D28CBF4B098A7BC" box="[816,967,679,703]" captionStart="Fig" captionStartId="16.[177,212,1606,1627]" captionTargetBox="[177,1440,193,1561]" captionTargetId="figure-209@16.[177,1440,186,1569]" captionTargetPageId="16" captionText="Fig. 8 a, c - Excentrococcus annulatus Dumitrică; a – mature specimen, face view, DSDP 21-205-7-1, 70-72 cm, scale bar 100 μm; c – other specimen, transversal section along the longitudinal axis showing the eccentric microsphere, DSDP 21-206-29CC, scale bar = 100 μm. b, f, g - Heliodiscus riedeli nov. sp., PROA 96P. d, e, h – Heliodiscus bipolaris nov. sp. focused at centre, on surface, and in lateral view, respectively, scale bar = 50 μm, DSDP 21-206-29CC." figureDoi="http://doi.org/10.5281/zenodo.10520620" httpUri="https://zenodo.org/record/10520620/files/figure.png" pageId="15" pageNumber="54">Figures 8a, 8c</figureCitation>
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</paragraph>
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<paragraph id="97377513C341FF803D28CB95B751A7FF" blockId="15.[816,1437,679,2083]" pageId="15" pageNumber="54">
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1972
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<taxonomicName id="50880E90C341FF803D69CB95B753A7DD" box="[881,1036,710,734]" class="Polycystina" family="Phacodiscidae" higherTaxonomySource="GBIF" kingdom="Chromista" order="Spumellaria" pageId="15" pageNumber="54" rank="family">Phacodiscidae</taxonomicName>
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? gen. indet. Petrushevskaya & Kozlova, pl. 19, fig. 15.
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</paragraph>
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<paragraph id="97377513C341FF803D28CA50B740A639" blockId="15.[816,1437,679,2083]" pageId="15" pageNumber="54">
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1973
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<taxonomicName id="50880E90C341FF803D76CA50B753A618" box="[878,1036,771,795]" genus="Xiphospira" higherTaxonomySource="GBIF" kingdom="Chromista" pageId="15" pageNumber="54" phylum="Radiozoa" rank="species" species="undetermined">
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<emphasis id="A5FCA901C341FF803D76CA50B0BBA618" box="[878,996,771,795]" italics="true" pageId="15" pageNumber="54">Xiphospira</emphasis>
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sp.
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</taxonomicName>
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cf.
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<taxonomicName id="50880E90C341FF803A2FCA57B65AA618" authority="Kling" authorityName="Kling" box="[1079,1285,771,795]" genus="Xiphospira" higherTaxonomySource="GBIF" kingdom="Chromista" pageId="15" pageNumber="54" phylum="Radiozoa" rank="species" species="circularis">
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<emphasis id="A5FCA901C341FF803A2FCA57B7E2A618" box="[1079,1213,771,795]" italics="true" pageId="15" pageNumber="54">X. circularis</emphasis>
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Kling
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</taxonomicName>
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, p. 635, pl. 7, fig. 16, non 11-15, 17.
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</paragraph>
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<paragraph id="97377513C341FF803D28CA13B71FA674" blockId="15.[816,1437,679,2083]" pageId="15" pageNumber="54">
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1978
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<taxonomicName id="50880E90C341FF803D77CA12B7A0A65A" authority="Dumitrica" authorityName="Dumitrica" box="[879,1279,832,857]" genus="Excentrococcus" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="15" pageNumber="54" rank="species" species="annulatus">
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<emphasis id="A5FCA901C341FF803D77CA12B7D5A65B" box="[879,1162,832,856]" italics="true" pageId="15" pageNumber="54">Excentrococcus annulatus</emphasis>
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Dumitrică
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</taxonomicName>
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, p. 238, pl. 2, fig. 12; pl. 5, figs. 19, 23.
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</paragraph>
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<paragraph id="97377513C341FF803D28CA2DB651A6B7" blockId="15.[816,1437,679,2083]" pageId="15" pageNumber="54">
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1992
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<taxonomicName id="50880E90C341FF803D75CA2CB7A5A695" authority="Dumitrica" authorityName="Dumitrica" box="[877,1274,894,918]" genus="Excentrococcus" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="15" pageNumber="54" rank="species" species="annulatus">
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<emphasis id="A5FCA901C341FF803D75CA2CB7D9A695" box="[877,1158,894,918]" italics="true" pageId="15" pageNumber="54">Excentrococcus annulatus</emphasis>
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Dumitrică
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</taxonomicName>
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– Sugiyama & Furutani, p. 202, pl. 12, fig. 4;?pl. 16, fig. 4.
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</paragraph>
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<paragraph id="97377513C341FF803D28CAE8B030A113" blockId="15.[816,1437,679,2083]" pageId="15" pageNumber="54">
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1992
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<taxonomicName id="50880E90C341FF803D61CAE8B622A6D7" authority="Dumitrica" authorityName="Dumitrica" box="[889,1405,955,980]" class="Polycystina" family="Heliodiscidae" genus="Excentrosphaerella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Spumellaria" pageId="15" pageNumber="54" rank="species" species="sphaeroconcha">
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<emphasis id="A5FCA901C341FF803D61CAE8B7A1A6D0" box="[889,1278,955,979]" italics="true" pageId="15" pageNumber="54">Excentrosphaerella sphaeroconcha</emphasis>
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Dumitrică
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</taxonomicName>
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– Sugiyama & Furutani, p. 202, pl. 12, figs. 1, 2;?pl. 16, fig. 3.
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</paragraph>
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<paragraph id="97377513C341FF803D28CD44B677A14D" blockId="15.[816,1437,679,2083]" pageId="15" pageNumber="54">
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1999
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<emphasis id="A5FCA901C341FF803D75CD44B746A12C" box="[877,1049,1047,1071]" italics="true" pageId="15" pageNumber="54">Perichlamidium</emphasis>
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sp. cf.
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<taxonomicName id="50880E90C341FF803A71CD44B0F6A14D" authority="Dreyer" authorityName="Dreyer" class="Polycystina" family="Porodiscidae" genus="Ommatodiscus" higherTaxonomySource="GBIF" kingdom="Chromista" order="Spumellaria" pageId="15" pageNumber="54" rank="species" species="perichlamydium">
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<emphasis id="A5FCA901C341FF803A71CD44B007A14D" italics="true" pageId="15" pageNumber="54">Ommatodiscus perichlamydium</emphasis>
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Dreyer
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</taxonomicName>
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– Tan & Chen, p. 209, fig. 5 – 122.
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</paragraph>
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<paragraph id="97377513C341FF803D28CD07B0BEA188" blockId="15.[816,1437,679,2083]" pageId="15" pageNumber="54">
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2004
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<taxonomicName id="50880E90C341FF803D75CD06B65FA16F" authority="Dumitrica." authorityName="Dumitrica." box="[877,1280,1108,1133]" genus="Excentrococcus" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="15" pageNumber="54" rank="species" species="annulatus">
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<emphasis id="A5FCA901C341FF803D75CD06B7D9A16F" box="[877,1158,1108,1132]" italics="true" pageId="15" pageNumber="54">Excentrococcus annulatus</emphasis>
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Dumitrică.
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</taxonomicName>
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– Kamikuri et al., pl. 8, fig. 10.
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</paragraph>
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<paragraph id="97377513C341FF803D28CDC0B7BAA040" blockId="15.[816,1437,679,2083]" pageId="15" pageNumber="54">
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<emphasis id="A5FCA901C341FF803D28CDC0B0F1A1A9" box="[816,942,1171,1194]" italics="true" pageId="15" pageNumber="54">Description</emphasis>
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. Test flat consisting of a double medullary shell with a very small eccentric microsphere; this structure surrounded by two to maximum six latticed circular or oval rings. When number of rings is maximum, shell is oval with an end open and external outermost rings are thinner, irregular and with smaller pores.
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</paragraph>
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<paragraph id="97377513C341FF803D28CC18B004A083" blockId="15.[816,1437,679,2083]" pageId="15" pageNumber="54">
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<emphasis id="A5FCA901C341FF803D28CC18B0F1A061" box="[816,942,1355,1378]" italics="true" pageId="15" pageNumber="54">Dimensions</emphasis>
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. Maximum length of shell around 150-160 μm.
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</paragraph>
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<paragraph id="97377513C341FF803D28CCD4B0F0A2E5" blockId="15.[816,1437,679,2083]" pageId="15" pageNumber="54">
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<emphasis id="A5FCA901C341FF803D28CCD4B0D2A09C" box="[816,909,1415,1439]" italics="true" pageId="15" pageNumber="54">Remarks</emphasis>
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. The species is very variable in shape and number of rings, probably depending on the biological age of specimens and environment. The common number of shells is six and maximum eight, as the specimen illustrated in
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<figureCitation id="0FB36996C341FF803D8DCF51B0BCA319" box="[917,995,1538,1562]" captionStart="Fig" captionStartId="16.[177,212,1606,1627]" captionTargetBox="[177,1440,193,1561]" captionTargetId="figure-209@16.[177,1440,186,1569]" captionTargetPageId="16" captionText="Fig. 8 a, c - Excentrococcus annulatus Dumitrică; a – mature specimen, face view, DSDP 21-205-7-1, 70-72 cm, scale bar 100 μm; c – other specimen, transversal section along the longitudinal axis showing the eccentric microsphere, DSDP 21-206-29CC, scale bar = 100 μm. b, f, g - Heliodiscus riedeli nov. sp., PROA 96P. d, e, h – Heliodiscus bipolaris nov. sp. focused at centre, on surface, and in lateral view, respectively, scale bar = 50 μm, DSDP 21-206-29CC." figureDoi="http://doi.org/10.5281/zenodo.10520620" httpUri="https://zenodo.org/record/10520620/files/figure.png" pageId="15" pageNumber="54">Fig. 8a</figureCitation>
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of the present paper or in
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<bibRefCitation id="F31908E2C341FF803B0ACF51B027A33B" author="Tan, Zh. & Chen, M." pageId="15" pageNumber="54" refId="ref15683" refString="Tan, Zh., Chen, M., 1999. Offshore Radiolaria in China. Science Press, Beijing, China, 404 pp., 14 pls., 390 text-figs., 9 Tabs. (in Chinese with English abstract)." type="book" year="1999">Tan & Chen (1999)</bibRefCitation>
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||
and
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<bibRefCitation id="F31908E2C341FF803DB5CF73B7FFA33B" author="Kamikuri, Sh. & Nishi, H. & Motoyama, I. & Saito, S." box="[941,1184,1568,1592]" pageId="15" pageNumber="54" pagination="191 - 226" refId="ref14946" refString="Kamikuri, Sh., Nishi, H., Motoyama, I., Saito, S., 2004. Middle Miocene to Pleistocene radiolarian biostratigraphyin the Northwest Pacific Ocean, ODP Leg 186. The Island Arc 13: 191 - 226." type="journal article" year="2004">Kamikuri et al. (2004)</bibRefCitation>
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. Up to the level of four shells the rings have large pores. The fifth and sixth rings are less regular and their pores are smaller, and the outermost seems to become slightly spongy. As the species is disc-shaped and the outer medullary shell is partly outside (fig. 8c), the maximum thickness of the disc is as great as the diameter of this shell. As a rule, the largest or the most complete specimens are oval and have a pylome marked by an indentation at one end (
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<figureCitation id="0FB36996C341FF803ACBCE45B67EA22D" box="[1235,1313,1814,1838]" captionStart="Fig" captionStartId="16.[177,212,1606,1627]" captionTargetBox="[177,1440,193,1561]" captionTargetId="figure-209@16.[177,1440,186,1569]" captionTargetPageId="16" captionText="Fig. 8 a, c - Excentrococcus annulatus Dumitrică; a – mature specimen, face view, DSDP 21-205-7-1, 70-72 cm, scale bar 100 μm; c – other specimen, transversal section along the longitudinal axis showing the eccentric microsphere, DSDP 21-206-29CC, scale bar = 100 μm. b, f, g - Heliodiscus riedeli nov. sp., PROA 96P. d, e, h – Heliodiscus bipolaris nov. sp. focused at centre, on surface, and in lateral view, respectively, scale bar = 50 μm, DSDP 21-206-29CC." figureDoi="http://doi.org/10.5281/zenodo.10520620" httpUri="https://zenodo.org/record/10520620/files/figure.png" pageId="15" pageNumber="54">Fig. 8a</figureCitation>
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in the present paper and in
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<bibRefCitation id="F31908E2C341FF803DE4CE66B7B2A24E" author="Kamikuri, Sh. & Nishi, H. & Motoyama, I. & Saito, S." box="[1020,1261,1845,1869]" pageId="15" pageNumber="54" pagination="191 - 226" refId="ref14946" refString="Kamikuri, Sh., Nishi, H., Motoyama, I., Saito, S., 2004. Middle Miocene to Pleistocene radiolarian biostratigraphyin the Northwest Pacific Ocean, ODP Leg 186. The Island Arc 13: 191 - 226." type="journal article" year="2004">Kamikuri et al., 2004</bibRefCitation>
|
||
) or by an open ring (
|
||
<bibRefCitation id="F31908E2C341FF803D74CE00B71DA268" author="Tan, Zh. & Chen, M." box="[876,1090,1875,1899]" pageId="15" pageNumber="54" refId="ref15683" refString="Tan, Zh., Chen, M., 1999. Offshore Radiolaria in China. Science Press, Beijing, China, 404 pp., 14 pls., 390 text-figs., 9 Tabs. (in Chinese with English abstract)." type="book" year="1999">Tan & Chen, 1999</bibRefCitation>
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). This pylome or indentation is situated on the direction in which the microsphere is most close to outer medullary shell. This signifies that there is a correlation between the position of the microsphere and the pylome.
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</paragraph>
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<paragraph id="97377513C341FF803D28CEBDB0FBAD20" blockId="15.[816,1437,679,2083]" pageId="15" pageNumber="54">
|
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<emphasis id="A5FCA901C341FF803D28CEBDB777AD06" box="[816,1064,2029,2053]" italics="true" pageId="15" pageNumber="54">Range and occurrence</emphasis>
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. Middle Miocene to Recent, cosmopolitan.
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</paragraph>
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</subSubSection>
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</treatment>
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||
</document> |