130 lines
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130 lines
18 KiB
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<document ID-DOI="10.5252/geodiversitas2021v43a11" ID-GBIF-Dataset="fc56a00d-cf6b-4fda-aa56-d0492e4781cb" ID-ISSN="1638-9395" ID-Zenodo-Dep="4891107" ID-ZooBank="urn:lsid:zoobank.org:pub:07D1F5A8-98E2-40F1-A716-D25CB975EA4C" checkinTime="1622490877458" checkinUser="felipe" docAuthor="Steurbaut, Etienne & Nolf, Dirk" docDate="2021" docId="1D2F9F2B9A30FFC4FC95FDE2DA8DBEE5" docLanguage="en" docName="Geodiversitas.43.11.311-363.pdf" docOrigin="Geodiversitas 43 (11)" docStyle="DocumentStyle:F830B10FF475E64C1F1601E3B32DDC00.3:Geodiversitas.2018-.journal_article" docStyleId="F830B10FF475E64C1F1601E3B32DDC00" docStyleName="Geodiversitas.2018-.journal_article" docStyleVersion="3" docTitle="Braarudosphaera stylifera Troelsen & Quadros 1971" docType="treatment" docVersion="5" lastPageNumber="342" masterDocId="E116E7539A11FFE5FFDBFFFADF3DBA1F" masterDocTitle="The Mont-des-Récollets section (N France): a key site for the Ypresian-Lutetian transition at mid-latitudes - reassessment of the boundary criterion for the base- Lutetian GSSP" masterLastPageNumber="363" masterPageNumber="311" pageNumber="342" updateTime="1632098410930" updateUser="ExternalLinkService" zenodo-license-document="CC0-1.0" zenodo-license-figures="CC0-1.0">
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<mods:titleInfo>
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<mods:title>The Mont-des-Récollets section (N France): a key site for the Ypresian-Lutetian transition at mid-latitudes - reassessment of the boundary criterion for the base- Lutetian GSSP</mods:title>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Steurbaut, Etienne</mods:namePart>
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<mods:affiliation>Royal Belgian Institute of Natural Sciences, OD Earth and History of Life, Vautierstraat 29, B- 1000 Brussel (Belgium) and Department of Earth, and Environmental Sciences, KU Leuven, Celestijnenlaan 200 E, B- 3001 Leuven (Belgium)</mods:affiliation>
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<mods:nameIdentifier type="email">etienne.steurbaut@naturalsciences.be</mods:nameIdentifier>
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<mods:name type="personal">
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Nolf, Dirk</mods:namePart>
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<mods:affiliation>Royal Belgian Institute of Natural Sciences, OD Earth and History of Life, Vautierstraat 29, B- 1000 Brussel (Belgium)</mods:affiliation>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:title>Geodiversitas</mods:title>
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<mods:part>
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<mods:date>2021</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2021-05-25</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>43</mods:number>
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</mods:detail>
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<mods:detail type="issue">
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<mods:number>11</mods:number>
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<mods:start>311</mods:start>
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<mods:end>363</mods:end>
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<mods:identifier type="DOI">10.5252/geodiversitas2021v43a11</mods:identifier>
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<mods:identifier type="GBIF-Dataset">fc56a00d-cf6b-4fda-aa56-d0492e4781cb</mods:identifier>
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<mods:identifier type="ISSN">1638-9395</mods:identifier>
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<mods:identifier type="Zenodo-Dep">4891107</mods:identifier>
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<treatment ID-DOI="http://doi.org/10.5281/zenodo.4891170" ID-GBIF-Taxon="182482776" ID-Zenodo-Dep="4891170" LSID="urn:lsid:plazi:treatment:1D2F9F2B9A30FFC4FC95FDE2DA8DBEE5" httpUri="http://treatment.plazi.org/id/1D2F9F2B9A30FFC4FC95FDE2DA8DBEE5" lastPageNumber="342" pageId="33" pageNumber="342">
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<subSubSection pageId="33" pageNumber="342" type="nomenclature">
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<paragraph blockId="33.[846,1422,536,595]" pageId="33" pageNumber="342">
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<taxonomicName authority="Troelsen & Quadros, 1971" authorityName="Troelsen & Quadros" authorityYear="1971" box="[846,1422,536,563]" class="Prymnesiophyceae" family="Braarudosphaeraceae" genus="Braarudosphaera" higherTaxonomySource="GBIF" kingdom="Chromista" order="Coccosphaerales" pageId="33" pageNumber="342" phylum="Haptophyta" rank="species" species="stylifera">
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<emphasis bold="true" box="[846,1125,536,563]" italics="true" pageId="33" pageNumber="342">Braarudosphaera stylifera</emphasis>
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<bibRefCitation author="TROELSEN J. C. & QUADROS L. P." box="[1131,1422,537,563]" pageId="33" pageNumber="342" pagination="211 - 217" refId="ref44435" refString="TROELSEN J. C. & QUADROS L. P. 1971. - Three species of Braarudosphaeraceae from Brasil. Boletim Paranaense de Geociencias 28 - 29: 211 - 217." type="journal article" year="1971">Troelsen & Quadros, 1971</bibRefCitation>
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</taxonomicName>
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(
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<figureCitation box="[1072,1148,569,595]" captionStart="FIG" captionStartId="34.[132,142,1690,1707]" captionTargetBox="[242,1344,215,1682]" captionTargetId="figure-29@34.[241,794,765,1321]" captionTargetPageId="34" captionText="FIG. 18. — New or less known calcareous nannofossil taxa from the Eocene of the Mont-des-Récollets and other localities in Belgium;a, b, c, views of the same specimen, in transmitted light or cross-polarized light or vice versa, and in different positions with respect to the polarisation directions. Numbers (e.g. IRSNB bXXXX) refer to the collections of the Royal Belgian Institute of Natural Sciences (Brussels).Pars 1: A-D, Braarudosphaera stylifera Troelsen & Quadros,1971,Mont-des-Récollets,122.85 m (IRSNB b7093,b7094,b7096);A, wm = 13 µm;B, wm = 12 µm;D, wm = 14.5 µm;C, Mont-des-Récollets,124.10 m (IRSNB b7095),wm = 13 µm;E, Lanternithus minutus Stradner, 1962, Mont-des-Récollets, 122.85 m, l = 5.6 µm (IRSNB b7097); F, G, Martiniaster cecellanoriae n. sp.: F, Chaumont-en-Vexin, sample 11, 0.55 m above base of the Lutetian, paratype,d = 13 µm (IRSNB b7098);G, Leuven BH,23.70 m depth, holotype,d = 14 µm (IRSNB b7099);H, Discoaster praebifax Wei & Wise,1989, Mont-des-Récollets,116.45 m, d = 7 µm (IRSNB b7100);I-M, Discoaster sublodoensis Bramlette & Sullivan,1961,Mont-des-Récollets,116.45 m (IRSNB b7101,b7102); J, d = 15.2 µm; I, d = 16 µm; K, Mont-des-Récollets, 118.35 m, d = 11.6 µm (IRSNB b7103); L, Vossem, otolith sample Nolf 1974, d = 7 µm (IRSNB b7104); M, Gisors, Bassin de Paris,sample 3,d = 14 µm (IRSNB b7105);N, Martiniaster fragilis (Martini,1961), Mont-des-Récollets,122.85 m, wm = 12 µm (IRSNB b7106);O-R, Discoaster wemmelensis Achuthan & Stradner,1969;O, Mont-des-Récollets, 122.85 m, d = 5.6 µm (IRSNB b7107); P-R, Vossem,otolith sample Nolf 1974 (IRSNB b7108, b7109, b7110);P, d = 5.3 µm; Q, d = 4.4 µm; R, d = 4.3 µm;S-V, Blackites minusculus n. sp.; S, Mont-des-Récollets,117.46 m, paratype, l = 8.8 µm (IRSNB b7111); T-V, Vossem, otolith sample Nolf 1974; T, U, paratypes (IRSNB b7112, b7113); T, I = 8.2 µm;U, I = 7.2 µm;V, holotype,I = 8.56 µm (IRSNB b7114); W-Y, Trochoaster nodosus n. sp.; W, Chaumont-en-Vexin,sample 16, 0.80 m above base of the Lutetian,holotype, d = 16 µm (IRSNB b7115);X, Vilvoorde BH, 5.80 m depth,paratype,d = 15 µm (IRSNB b7116); Y, Oedelem BH, 11.70 m depth, paratype, d = 15 µm (IRSNB b7117); Z-AA, Sphenolithus recolletensis n. sp.; Z, Mont-des-Récollets, 116.45 m, paratype, htot = 20 µm (IRSNB b7118);AA, Mont-des-Récollets, 117.46 m, holotype (a, c, parallel to the polarization directions;b, at 45°), htot = 11.4 µm (IRSNB b7119)." figureDoi="http://doi.org/10.5281/zenodo.4891140" httpUri="https://zenodo.org/record/4891140/files/figure.png" pageId="33" pageNumber="342">Fig. 18</figureCitation>
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A-D)
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</paragraph>
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</subSubSection>
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<subSubSection box="[813,1456,627,651]" pageId="33" pageNumber="342" type="reference_group">
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<paragraph blockId="33.[813,1456,627,651]" box="[813,1456,627,651]" pageId="33" pageNumber="342">
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<treatmentCitationGroup box="[813,1456,627,651]" pageId="33" pageNumber="342">
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<treatmentCitation author="TROELSEN J. C. & QUADROS L. P." box="[813,1316,627,651]" page="212" pageId="33" pageNumber="342" year="1971">
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<taxonomicName authority="Troelsen & Quadros, 1971: 212" authorityName="Troelsen & Quadros" authorityPageNumber="212" authorityYear="1971" box="[813,1316,627,651]" class="Prymnesiophyceae" family="Braarudosphaeraceae" genus="Braarudosphaera" higherTaxonomySource="GBIF" kingdom="Chromista" order="Coccosphaerales" pageId="33" pageNumber="342" phylum="Haptophyta" rank="species" species="stylifera">
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<emphasis box="[813,1027,627,651]" italics="true" pageId="33" pageNumber="342">Braarudosphaera stylifera</emphasis>
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<bibRefCitation author="TROELSEN J. C. & QUADROS L. P." box="[1029,1316,627,651]" pageId="33" pageNumber="342" pagination="211 - 217" refId="ref44435" refString="TROELSEN J. C. & QUADROS L. P. 1971. - Three species of Braarudosphaeraceae from Brasil. Boletim Paranaense de Geociencias 28 - 29: 211 - 217." type="journal article" year="1971">Troelsen & Quadros, 1971: 212</bibRefCitation>
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</taxonomicName>
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</treatmentCitation>
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, pl.1, figs 8-14.
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</treatmentCitationGroup>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="33" pageNumber="342" type="distribution">
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<paragraph blockId="33.[811,1457,675,995]" pageId="33" pageNumber="342">
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DISTRIBUTION. — This taxon is recorded in several middle Eocene outcrop and borehole sections in
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<collectingCountry box="[1145,1227,702,726]" name="Belgium" pageId="33" pageNumber="342">Belgium</collectingCountry>
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(Steurbaut in
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<bibRefCitation author="HERMAN J. & STEURBAUT E. & VANDENBERGHE N." pageId="33" pageNumber="342" pagination="231 - 255" refId="ref39742" refString="HERMAN J., STEURBAUT E. & VANDENBERGHE N. 2001. - The boundary between the Middle Eocene Brussel Sand and the Lede Sand Formations in the Zaventem-Nederokkerzeel area (Northeast of Brussels, Belgium). Geologica Belgica 3 (3 - 4): 231 - 255. https: // doi. org / 10.20341 / gb. 2014.031" type="journal article" year="2001">
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Herman
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<emphasis box="[813,860,728,752]" italics="true" pageId="33" pageNumber="342">et al.</emphasis>
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2001
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</bibRefCitation>
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and in
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<bibRefCitation author="SMITH T. & DE WILDE B. & STEURBAUT E." box="[991,1159,728,753]" pageId="33" pageNumber="342" pagination="165 - 175" refId="ref43312" refString="SMITH T., DE WILDE B. & STEURBAUT E. 2004. - Primitive Equoid and Tapiroid mammals: keys for interpreting the Ypresian-Lutetian transition of Belgium. Bulletin de l'Institut royal des Sciences naturelles de Belgique, Sciences de la Terre, 74, Supplement: 165 - 175." type="journal article" year="2004">
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Smith
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<emphasis box="[1056,1103,728,752]" italics="true" pageId="33" pageNumber="342">et al.</emphasis>
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2004
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</bibRefCitation>
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;
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<bibRefCitation author="STEURBAUT E. & KING C. & MATTHIJS J. & NOIRET C. & YANS J. & VAN SIMAEYS S." box="[1172,1376,728,752]" pageId="33" pageNumber="342" pagination="147 - 159" refId="ref43993" refString="STEURBAUT E., KING C., MATTHIJS J., NOIRET C., YANS J. & VAN SIMAEYS S. 2015. - The Zemst borehole, first record of the EECO in the North Sea Basin and implications for Belgian Ypresian-Lutetian stratigraphy. Geologica Belgica 18 (2 - 4): 147 - 159. https: // popups. uliege. be / 1374 - 8505 / index. php? id = 5045" type="journal article" year="2015">
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Steurbaut
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<emphasis box="[1273,1320,728,752]" italics="true" pageId="33" pageNumber="342">et al.</emphasis>
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2015
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</bibRefCitation>
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). In the Mont-des-Récollets section it consistently ranges from the uppermost part of the
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<collectingRegion box="[917,986,782,806]" country="Belgium" name="Region de Bruxelles-Capitale" pageId="33" pageNumber="342">Brussel</collectingRegion>
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Sand Formation (base of Unit B4) to the base of the Wemmel Sand Member. In terms of calcareous nannoplankton zones, its occurrence encompasses the upper part of NP14 and the lower part of NP15, as it appears to do in the Paris Basin (
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<bibRefCitation author="AUBRY M. - P." pageId="33" pageNumber="342" pagination="1 - 317" refId="ref36607" refString="AUBRY M. - P. 1983. - Biostratigraphie du Paleogene epicontinental de l'Europe du Nord-Ouest. Etude fondee sur les nannofossiles calcaires. Documents des Laboratoires de Geologie de Lyon 89: 1 - 317." type="journal article" year="1983">Aubry 1983</bibRefCitation>
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,
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<bibRefCitation author="AUBRY M. - P." box="[875,926,890,914]" pageId="33" pageNumber="342" pagination="267 - 334" refId="ref36645" refString="AUBRY M. - P. 1986. - Paleogene calcareous nannoplankton biostratigraphy of northwestern Europe. Palaeogeography, Palaeoclimatology, Palaeoecology 55: 267 - 334. https: // doi. org / 10.1016 / 0031 - 0182 (86) 90154 - 9" type="journal article" year="1986">1986</bibRefCitation>
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) and the Aquitaine Basin (
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<bibRefCitation author="LIN C. - H. & NOLF D. & STEURBAUT E. & GIRONE A." box="[1185,1326,890,914]" pageId="33" pageNumber="342" pagination="879 - 907" refId="ref41294" refString="LIN C. - H., NOLF D., STEURBAUT E. & GIRONE A. 2017. - Fish otoliths from the Lutetian of the Aquitaine Basin (SW France), a breakthrough in the knowledge of the European Eocene ichthyofauna. Journal of Systematic Palaeontology 15 (11): 879 - 907. https: // doi. org / 10.1080 / 14772019.2016.1246112" type="journal article" year="2017">
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Lin
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<emphasis box="[1224,1271,890,914]" italics="true" pageId="33" pageNumber="342">et al.</emphasis>
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2017
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</bibRefCitation>
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). In the Paris Basin it seems to recur in the Bartonian (Chavençon Marls: NP17 or NP18,
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<bibRefCitation author="AUBRY M. - P." box="[906,1023,944,968]" pageId="33" pageNumber="342" pagination="1 - 317" refId="ref36607" refString="AUBRY M. - P. 1983. - Biostratigraphie du Paleogene epicontinental de l'Europe du Nord-Ouest. Etude fondee sur les nannofossiles calcaires. Documents des Laboratoires de Geologie de Lyon 89: 1 - 317." type="journal article" year="1983">Aubry 1983</bibRefCitation>
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: pl. 8, figs 10-11), although this has not been observed in the other basins.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="33" pageNumber="342" type="discussion">
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<paragraph blockId="33.[813,1457,1054,1274]" box="[813,942,1054,1080]" pageId="33" pageNumber="342">DISCUSSION</paragraph>
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<paragraph blockId="33.[813,1457,1054,1274]" pageId="33" pageNumber="342">
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<taxonomicName authorityName="Troelsen & Quadros" authorityYear="1971" box="[813,919,1086,1112]" class="Prymnesiophyceae" family="Braarudosphaeraceae" genus="Braarudosphaera" higherTaxonomySource="GBIF" kingdom="Chromista" order="Coccosphaerales" pageId="33" pageNumber="342" phylum="Haptophyta" rank="species" species="stylifera">
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<emphasis box="[813,919,1086,1112]" italics="true" pageId="33" pageNumber="342">B. stylifera</emphasis>
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</taxonomicName>
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differs from all up to now known
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<taxonomicName authorityName="Deflandre" authorityYear="1947" box="[1279,1453,1086,1112]" class="Prymnesiophyceae" family="Braarudosphaeraceae" genus="Braarudosphaera" higherTaxonomySource="GBIF" kingdom="Chromista" order="Coccosphaerales" pageId="33" pageNumber="342" phylum="Haptophyta" rank="genus">
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<emphasis box="[1279,1453,1086,1112]" italics="true" pageId="33" pageNumber="342">Braarudosphaera</emphasis>
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</taxonomicName>
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taxa by its very high slightly tapering outline, resembling a pentagonal pyramid with truncated top, the margin sides of which are often slightly bowed inward (
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<figureCitation box="[1282,1380,1183,1210]" captionStart="FIG" captionStartId="34.[132,142,1690,1707]" captionTargetBox="[242,1344,215,1682]" captionTargetId="figure-29@34.[241,794,765,1321]" captionTargetPageId="34" captionText="FIG. 18. — New or less known calcareous nannofossil taxa from the Eocene of the Mont-des-Récollets and other localities in Belgium;a, b, c, views of the same specimen, in transmitted light or cross-polarized light or vice versa, and in different positions with respect to the polarisation directions. Numbers (e.g. IRSNB bXXXX) refer to the collections of the Royal Belgian Institute of Natural Sciences (Brussels).Pars 1: A-D, Braarudosphaera stylifera Troelsen & Quadros,1971,Mont-des-Récollets,122.85 m (IRSNB b7093,b7094,b7096);A, wm = 13 µm;B, wm = 12 µm;D, wm = 14.5 µm;C, Mont-des-Récollets,124.10 m (IRSNB b7095),wm = 13 µm;E, Lanternithus minutus Stradner, 1962, Mont-des-Récollets, 122.85 m, l = 5.6 µm (IRSNB b7097); F, G, Martiniaster cecellanoriae n. sp.: F, Chaumont-en-Vexin, sample 11, 0.55 m above base of the Lutetian, paratype,d = 13 µm (IRSNB b7098);G, Leuven BH,23.70 m depth, holotype,d = 14 µm (IRSNB b7099);H, Discoaster praebifax Wei & Wise,1989, Mont-des-Récollets,116.45 m, d = 7 µm (IRSNB b7100);I-M, Discoaster sublodoensis Bramlette & Sullivan,1961,Mont-des-Récollets,116.45 m (IRSNB b7101,b7102); J, d = 15.2 µm; I, d = 16 µm; K, Mont-des-Récollets, 118.35 m, d = 11.6 µm (IRSNB b7103); L, Vossem, otolith sample Nolf 1974, d = 7 µm (IRSNB b7104); M, Gisors, Bassin de Paris,sample 3,d = 14 µm (IRSNB b7105);N, Martiniaster fragilis (Martini,1961), Mont-des-Récollets,122.85 m, wm = 12 µm (IRSNB b7106);O-R, Discoaster wemmelensis Achuthan & Stradner,1969;O, Mont-des-Récollets, 122.85 m, d = 5.6 µm (IRSNB b7107); P-R, Vossem,otolith sample Nolf 1974 (IRSNB b7108, b7109, b7110);P, d = 5.3 µm; Q, d = 4.4 µm; R, d = 4.3 µm;S-V, Blackites minusculus n. sp.; S, Mont-des-Récollets,117.46 m, paratype, l = 8.8 µm (IRSNB b7111); T-V, Vossem, otolith sample Nolf 1974; T, U, paratypes (IRSNB b7112, b7113); T, I = 8.2 µm;U, I = 7.2 µm;V, holotype,I = 8.56 µm (IRSNB b7114); W-Y, Trochoaster nodosus n. sp.; W, Chaumont-en-Vexin,sample 16, 0.80 m above base of the Lutetian,holotype, d = 16 µm (IRSNB b7115);X, Vilvoorde BH, 5.80 m depth,paratype,d = 15 µm (IRSNB b7116); Y, Oedelem BH, 11.70 m depth, paratype, d = 15 µm (IRSNB b7117); Z-AA, Sphenolithus recolletensis n. sp.; Z, Mont-des-Récollets, 116.45 m, paratype, htot = 20 µm (IRSNB b7118);AA, Mont-des-Récollets, 117.46 m, holotype (a, c, parallel to the polarization directions;b, at 45°), htot = 11.4 µm (IRSNB b7119)." figureDoi="http://doi.org/10.5281/zenodo.4891140" httpUri="https://zenodo.org/record/4891140/files/figure.png" pageId="33" pageNumber="342">Fig. 18B</figureCitation>
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). Both pentagonal ends can clearly be observed viewed from above when over-focusing and under-focusing with the microscope.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |