201 lines
24 KiB
XML
201 lines
24 KiB
XML
<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="1D2F9F2B9A34FFC0FEC3F998DB3BBFC3" 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="Martiniaster cecellanoriae Steurbaut & Nolf, 2021, n. sp." docType="treatment" docUuid="BC34435D-E488-4BDF-A956-093AA0FA4C44" docUuidSource="ZooBank" docVersion="5" lastPageNumber="346" 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="346" updateTime="1632098410930" updateUser="ExternalLinkService" zenodo-license-document="CC0-1.0" zenodo-license-figures="CC0-1.0">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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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:titleInfo>
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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:role>
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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>
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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:role>
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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:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>Geodiversitas</mods:title>
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</mods:titleInfo>
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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:detail>
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<mods:extent unit="page">
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<mods:start>311</mods:start>
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<mods:end>363</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:classification>journal article</mods:classification>
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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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<mods:identifier type="ZooBank">urn:lsid:zoobank.org:pub:07D1F5A8-98E2-40F1-A716-D25CB975EA4C</mods:identifier>
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</mods:mods>
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<treatment ID-DOI="http://doi.org/10.5281/zenodo.4891194" ID-GBIF-Taxon="182482751" ID-Zenodo-Dep="4891194" LSID="urn:lsid:zoobank.org:act:BC34435D-E488-4BDF-A956-093AA0FA4C44" httpUri="http://treatment.plazi.org/id/1D2F9F2B9A34FFC0FEC3F998DB3BBFC3" lastPageNumber="346" pageId="37" pageNumber="346">
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<subSubSection box="[280,628,1634,1661]" pageId="37" pageNumber="346" type="nomenclature">
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<paragraph blockId="37.[280,628,1634,1661]" box="[280,628,1634,1661]" pageId="37" pageNumber="346">
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<heading box="[280,628,1634,1661]" centered="true" fontSize="11" level="2" pageId="37" pageNumber="346" reason="2">
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<taxonomicName box="[280,563,1634,1661]" class="Coccolithophyceae" family="Lithostromationaceae" genus="Martiniaster" higherTaxonomySource="GBIF" kingdom="Chromista" pageId="37" pageNumber="346" phylum="Haptophyta" rank="species" species="cecellanoriae" status="n. sp.">
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<emphasis bold="true" box="[280,563,1634,1661]" italics="true" pageId="37" pageNumber="346">Martiniaster cecellanoriae</emphasis>
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</taxonomicName>
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<taxonomicNameLabel box="[569,628,1635,1661]" pageId="37" pageNumber="346" rank="species">n. sp.</taxonomicNameLabel>
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</heading>
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection pageId="37" pageNumber="346" type="description">
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<paragraph blockId="37.[384,523,1666,1693]" box="[384,523,1666,1693]" pageId="37" pageNumber="346">
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||
(
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||
<figureCitation box="[393,516,1666,1693]" 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="37" pageNumber="346">Fig. 18F, G</figureCitation>
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)
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</paragraph>
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||
<paragraph blockId="37.[132,774,1733,1750]" box="[132,774,1733,1750]" pageId="37" pageNumber="346">
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<uri box="[132,774,1733,1750]" pageId="37" pageNumber="346">
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||
urn:lsid:zoobank.org:act:
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<uuid box="[344,774,1733,1750]" pageId="37" pageNumber="346">BC34435D-E488-4BDF-A956-093AA0FA4C44</uuid>
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</uri>
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection pageId="37" pageNumber="346" type="reference_group">
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||
<paragraph blockId="37.[132,775,1799,1850]" pageId="37" pageNumber="346">
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||
<treatmentCitationGroup pageId="37" pageNumber="346">
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<taxonomicName baseAuthorityName="Martini" baseAuthorityYear="1961" box="[132,320,1799,1823]" class="Coccolithophyceae" family="Lithostromationaceae" genus="Martiniaster" higherTaxonomySource="GBIF" kingdom="Chromista" pageId="37" pageNumber="346" phylum="Haptophyta" rank="species" species="fragilis">
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<emphasis box="[132,320,1799,1823]" italics="true" pageId="37" pageNumber="346">Martiniaster fragilis</emphasis>
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</taxonomicName>
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–
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<treatmentCitation author="AUBRY M. - P." box="[348,519,1799,1823]" page="156" pageId="37" pageNumber="346" year="1983">
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<bibRefCitation author="AUBRY M. - P." box="[348,519,1799,1823]" pageId="37" pageNumber="346" 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: 156</bibRefCitation>
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||
</treatmentCitation>
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, pl. 4, fig. 23; 1986: 327, pl. 4, fig. 23 (non
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<taxonomicName authority="Martini, 1961" authorityName="Martini" authorityYear="1961" box="[312,552,1826,1850]" class="Coccolithophyceae" family="Lithostromationaceae" genus="Martiniaster" higherTaxonomySource="GBIF" kingdom="Chromista" pageId="37" pageNumber="346" phylum="Haptophyta" rank="species" species="fragilis">
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<emphasis box="[312,403,1826,1850]" italics="true" pageId="37" pageNumber="346">C. fragilis</emphasis>
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||
<bibRefCitation author="MARTINI E." box="[409,552,1826,1850]" pageId="37" pageNumber="346" pagination="1 - 41" refId="ref41642" refString="MARTINI E. 1961. - Nannoplankton aus dem Tertiar und der obersten Kreide von SW-Frankreich. Senckenbergiana lethaea 42 (1 / 2): 1 - 41." type="journal article" year="1961">Martini, 1961</bibRefCitation>
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</taxonomicName>
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||
).
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||
</treatmentCitationGroup>
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection pageId="37" pageNumber="346" type="materials_examined">
|
||
<paragraph blockId="37.[132,775,1874,1925]" pageId="37" pageNumber="346">
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||
<materialsCitation ID-GBIF-Occurrence="3125291335" collectionCode="IRSNB, RBINS" pageId="37" pageNumber="346" specimenCount="1" typeStatus="holotype">
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||
<typeStatus box="[132,239,1875,1898]" pageId="37" pageNumber="346">HOLOTYPE</typeStatus>
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||
. —
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||
<figureCitation box="[286,376,1874,1898]" 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="37" pageNumber="346">Fig. 18G</figureCitation>
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(
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<collectionCode box="[390,464,1874,1898]" country="Belgium" httpUri="http://grbio.org/cool/c7r2-61q8" name="Institut Royal des Sciences Naturelles de Belgique" pageId="37" pageNumber="346">IRSNB</collectionCode>
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b7099) (negative stored in the collections of the
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<collectionCode box="[307,384,1901,1925]" country="Belgium" httpUri="http://biocol.org/urn:lsid:biocol.org:col:35271" lsid="urn:lsid:biocol.org:col:35271" name="Royal Belgian Institute of Natural Sciences" pageId="37" pageNumber="346" type="Museum">RBINS</collectionCode>
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).
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</materialsCitation>
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</paragraph>
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||
<paragraph blockId="37.[132,775,1949,2027]" lastBlockId="37.[811,1458,215,266]" pageId="37" pageNumber="346">
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||
<materialsCitation ID-GBIF-Occurrence="3125291312" pageId="37" pageNumber="346">
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||
<typeStatus box="[132,232,1950,1973]" pageId="37" pageNumber="346">PARATYPES</typeStatus>
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.
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<emphasis box="[242,267,1950,1973]" italics="true" pageId="37" pageNumber="346">—</emphasis>
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1 from the “Chaumont-en-Vexin sands” at Chaumonten-Vexin (sample
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<collectionCode box="[309,368,1976,2000]" country="China" httpUri="http://biocol.org/urn:lsid:biocol.org:col:13208" lsid="urn:lsid:biocol.org:col:13208" name="Hebei Agrotechnical Teachers College" pageId="37" pageNumber="346" type="Herbarium">CHA</collectionCode>
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||
11,
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<quantity box="[401,472,1976,2000]" metricMagnitude="-1" metricUnit="m" metricValue="5.5" pageId="37" pageNumber="346" unit="m" value="0.55">0.55 m</quantity>
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above the base of the Lutetian (
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<figureCitation box="[140,223,2003,2027]" 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="37" pageNumber="346">Fig. 18F</figureCitation>
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,
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<collectionCode box="[234,306,2003,2027]" country="Belgium" httpUri="http://grbio.org/cool/c7r2-61q8" name="Institut Royal des Sciences Naturelles de Belgique" pageId="37" pageNumber="346">IRSNB</collectionCode>
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b7098) and 2 non-figured specimens from the base of Unit A4 of the Aalter Sand Formation (Mont-des-Récollets:
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<quantity box="[811,907,242,266]" metricMagnitude="2" metricUnit="m" metricValue="1.1484999999999999" pageId="37" pageNumber="346" unit="m" value="114.85">114.85 m</quantity>
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and Vlakte van de Raan borehole:
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||
<quantity box="[1249,1333,242,266]" metricMagnitude="1" metricUnit="m" metricValue="8.295" pageId="37" pageNumber="346" unit="m" value="82.95">82.95 m</quantity>
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depth).
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</materialsCitation>
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection pageId="37" pageNumber="346" type="diagnosis">
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<paragraph blockId="37.[813,1457,290,368]" pageId="37" pageNumber="346">
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DIAGNOSIS.
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<emphasis box="[936,961,291,314]" italics="true" pageId="37" pageNumber="346">—</emphasis>
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Circular fragile structure, slightly conical in side view, consisting of a series of concentric rings, supported by 17 to 19 radially oriented pillars, resembling a spider’s web.
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</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="37" pageNumber="346" type="etymology">
|
||
<paragraph blockId="37.[811,1456,391,469]" pageId="37" pageNumber="346">DERIVATIO NOMINIS. — The species name is a combination of Cecile, the Christian name of the first author’s spouse, who passed away recently, and of Ella-Noor, the first name of his grand-daughter.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="37" pageNumber="346" type="materials_examined">
|
||
<paragraph blockId="37.[813,1454,493,544]" pageId="37" pageNumber="346">
|
||
LOCUS TYPICUS. —
|
||
<materialsCitation ID-GBIF-Occurrence="3125291315" pageId="37" pageNumber="346">
|
||
Leuven borehole,
|
||
<quantity box="[1157,1236,493,517]" metricMagnitude="1" metricUnit="m" metricValue="2.37" pageId="37" pageNumber="346" unit="m" value="23.7">23.70 m</quantity>
|
||
depth,
|
||
<geoCoordinate box="[1302,1450,493,517]" degrees="50" direction="north" minutes="53" orientation="latitude" pageId="37" pageNumber="346" precision="1" seconds="24.36" value="50.890102">50°53’24.36”N</geoCoordinate>
|
||
,
|
||
<geoCoordinate box="[813,946,520,544]" degrees="4" direction="east" minutes="42" orientation="longitude" pageId="37" pageNumber="346" precision="1" seconds="33.69" value="4.709358">4°42’33.69”E</geoCoordinate>
|
||
.
|
||
</materialsCitation>
|
||
</paragraph>
|
||
<paragraph blockId="37.[813,1455,568,619]" pageId="37" pageNumber="346">
|
||
STRATUM TYPICUM.
|
||
<emphasis box="[1011,1036,569,592]" italics="true" pageId="37" pageNumber="346">—</emphasis>
|
||
<materialsCitation ID-GBIF-Occurrence="3125291337" collectorName="Unit BE" location="Brussel" pageId="37" pageNumber="346" specimenCount="1" stateProvince="Region de Bruxelles-Capitale">
|
||
<collectingRegion box="[1043,1112,568,592]" country="Belgium" name="Region de Bruxelles-Capitale" pageId="37" pageNumber="346">Brussel</collectingRegion>
|
||
Sand Formation, base of
|
||
<collectorName box="[1366,1452,568,592]" pageId="37" pageNumber="346">Unit BE</collectorName>
|
||
; base of NP14.
|
||
</materialsCitation>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection box="[813,1453,643,668]" pageId="37" pageNumber="346" type="description">
|
||
<paragraph blockId="37.[813,1453,643,668]" box="[813,1453,643,668]" pageId="37" pageNumber="346">
|
||
DIMENSIONS. — Diameter =
|
||
<quantity box="[1099,1222,643,668]" metricMagnitude="-2" metricUnit="m" metricValue="1.35" metricValueMax="1.4" metricValueMin="1.3" pageId="37" pageNumber="346" unit="mm" value="13.5" valueMax="14.0" valueMin="13.0">13 to 14 µm</quantity>
|
||
(
|
||
<typeStatus box="[1235,1325,643,667]" pageId="37" pageNumber="346">holotype</typeStatus>
|
||
: d =
|
||
<quantity box="[1373,1440,643,667]" metricMagnitude="-2" metricUnit="m" metricValue="1.4" pageId="37" pageNumber="346" unit="mm" value="14.0">14 µm</quantity>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="37" pageNumber="346" type="distribution">
|
||
<paragraph blockId="37.[811,1456,691,1011]" pageId="37" pageNumber="346">
|
||
DISTRIBUTION. — At the Mont-des-Récollets it is known from
|
||
<specimenCount pageId="37" pageNumber="346" type="generic">1 specimen</specimenCount>
|
||
in the upper part of the Aalter Sand Sand Formation (lower Unit A4, base NP14). It has also been recorded in the Vlakte van de Raan borehole at the top of the Aalter Sand Formation (upper Unit A4,
|
||
<quantity box="[908,993,798,822]" metricMagnitude="1" metricUnit="m" metricValue="8.295" pageId="37" pageNumber="346" unit="m" value="82.95">82.95 m</quantity>
|
||
depth, lower NP14) and in the Leuven-Artois borehole (base of Unit BE, base of NP14). It has been identified in several samples of the lower part of the ‘Chaumon-en-Vexin sands’ at the Darcy site at Chaumont-en-Vexin (Steurbaut, unpublished information). These records led us to conclude that the LO of
|
||
<taxonomicName box="[881,1036,933,957]" class="Coccolithophyceae" family="Lithostromationaceae" genus="Martiniaster" higherTaxonomySource="GBIF" kingdom="Chromista" pageId="37" pageNumber="346" phylum="Haptophyta" rank="species" species="cecellanoriae" status="n. sp.">
|
||
<emphasis box="[881,1036,933,957]" italics="true" pageId="37" pageNumber="346">M. cecellanoriae</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel box="[1042,1097,933,956]" pageId="37" pageNumber="346" rank="species">n. sp.</taxonomicNameLabel>
|
||
is a major stratigraphical marker, as it is coincident with the base of NP14 and the base of the historical Lutetian stratotype.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="37" pageNumber="346" type="description">
|
||
<paragraph blockId="37.[813,1457,1055,1274]" box="[813,957,1055,1081]" pageId="37" pageNumber="346">DESCRIPTION</paragraph>
|
||
<paragraph blockId="37.[813,1457,1055,1274]" pageId="37" pageNumber="346">This circular slightly inflated body consists of a number of (generally three) peripheral concentric rings surrounding a central network, which are supported by 17 to 19 radially oriented pillars. This concentric structure, which resembles a spider’s web, shows no birefringence under crossed nicols.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="37" pageNumber="346" type="discussion">
|
||
<paragraph blockId="37.[811,1456,1313,1500]" box="[813,942,1313,1339]" pageId="37" pageNumber="346">DISCUSSION</paragraph>
|
||
<paragraph blockId="37.[811,1456,1313,1500]" pageId="37" pageNumber="346">
|
||
This taxon has many similarities with
|
||
<taxonomicName authorityName="Martini" authorityYear="1961" box="[1203,1405,1345,1371]" class="Coccolithophyceae" family="Lithostromationaceae" genus="Martiniaster" higherTaxonomySource="GBIF" kingdom="Chromista" pageId="37" pageNumber="346" phylum="Haptophyta" rank="species" species="fragilis">
|
||
<emphasis box="[1203,1405,1345,1371]" italics="true" pageId="37" pageNumber="346">Martiniaster fragilis</emphasis>
|
||
</taxonomicName>
|
||
, but instead of the 12 radially arranged peripheral ridges, it has a much larger number of radial pillars (generally between 17 and 19), which are less prominently developed. It appears to be also less globular.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |