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<document id="CDD2FE6ABAC39138BA6FD6D200618A9D" ID-DOI="10.11646/phytotaxa.382.1.1" ID-ISSN="1179-3163" ID-Zenodo-Dep="13724044" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="GgImagineBatch" IM.taxonomicNames_approvedBy="felipe" IM.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1725669367308" checkinUser="felipe" docAuthor="Sims, Pat A., Williams, David M. &amp; Ashworth, Matt" docDate="2018" docId="12590703F437FFBC22DCFCFAFA8123E8" docLanguage="en" docName="phytotaxa.382.1.1.pdf" docOrigin="Phytotaxa 382 (1)" docSource="http://dx.doi.org/10.11646/phytotaxa.382.1.1" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Cerataulus strelnikovae P. A. Sims &amp; D. M. Williams 2018, sp. nov." docType="treatment" docVersion="2" lastPageNumber="44" masterDocId="EE607F7BF41CFF972254FFF9FF8E2724" masterDocTitle="Examination of type specimens for the genera Odontella and Zygoceros (Bacillariophyceae) with evidence for the new family Odontellaceae and a description of three new genera" masterLastPageNumber="56" masterPageNumber="1" pageNumber="44" updateTime="1725681263685" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="B4D327AB293BEAC9A1D1F04558645320">Examination of type specimens for the genera Odontella and Zygoceros (Bacillariophyceae) with evidence for the new family Odontellaceae and a description of three new genera</mods:title>
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<mods:namePart id="1FAEB4A631657CFE258D7CC7FE45EA5B">Sims, Pat A.</mods:namePart>
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<mods:namePart id="32BBA37CA313CD5FC379FC4B1C83AFC8">Williams, David M.</mods:namePart>
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<mods:namePart id="7F79B5574151C4C8B3ACFB8DEE6D44E1">Ashworth, Matt</mods:namePart>
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<mods:title id="9053F9CD89FE4405B1648606628F173F">Phytotaxa</mods:title>
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<mods:date id="E0BF4C367EBE1E786DBDE36C1BC0F62D">2018</mods:date>
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<subSubSection id="D2EAE59EF437FFBC22DCFCFAFF762318" pageId="43" pageNumber="44" type="nomenclature">
<paragraph id="9A4FB615F437FFBC22DCFCFAFC7C2438" blockId="43.[136,1010,771,796]" box="[136,1010,771,796]" pageId="43" pageNumber="44">
<heading id="C1070179F437FFBC22DCFCFAFC7C2438" box="[136,1010,771,796]" fontSize="11" level="2" pageId="43" pageNumber="44" reason="3">
<taxonomicName id="5DF0CD96F437FFBC22DCFCFAFD6C2438" authority="P.A. Sims &amp; D. M. Williams" authorityName="P. A. Sims &amp; D. M. Williams" authorityYear="2018" box="[136,738,771,796]" class="Bacillariophyceae" family="Triceratiaceae" genus="Cerataulus" higherTaxonomySource="GBIF" kingdom="Chromista" order="Triceratiales" pageId="43" pageNumber="44" phylum="Ochrophyta" rank="species" species="strelnikovae" status="sp. nov.">
<emphasis id="A8846A07F437FFBC22DCFCFAFE152438" bold="true" box="[136,411,771,796]" italics="true" pageId="43" pageNumber="44">Cerataulus strelnikovae</emphasis>
P.A. Sims &amp; D. M. Williams
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<emphasis id="A8846A07F437FFBC20BCFCFAFCB12438" bold="true" box="[744,831,771,796]" italics="true" pageId="43" pageNumber="44">
<taxonomicNameLabel id="B3B7D77CF437FFBC20BCFCFAFCB12438" box="[744,831,771,796]" pageId="43" pageNumber="44" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
(
<figureCitation id="02CBAA90F437FFBC211AFCFAFC642438" box="[846,1002,771,796]" captionStart-0="FIGURES 148152" captionStart-1="FIGURES 153156" captionStartId-0="42.[136,243,1739,1760]" captionStartId-1="44.[136,243,1796,1817]" captionTargetBox-0="[172,1418,194,1697]" captionTargetBox-1="[238,1352,185,1758]" captionTargetId-0="figure-15@42.[150,1435,175,1717]" captionTargetId-1="figure-15@44.[221,1366,173,1772]" captionTargetPageId-0="42" captionTargetPageId-1="44" captionText-0="FIGURES 148152. Ralfsiella smithii (=Cerataulus smithii Ralfs in Pritchard) (Beaufort, South Carolina, USA). Fig. 148. Circular valve face with opposing narrow submarginal elevations; positioned midway submarginal hollow spines, the exterior openings of rimoportulae; valve surface covered in a mostly radial pattern of false pseudoloculi, valve mantle slightly indented where it joins narrow hyaline valve margin; scale bar = 10 μm. Fig. 149. Summit of elevation with rimmed ocellus; scale bar = 2 μm. Fig. 150. Frustule with attached girdle bands, flat valve face merging into rounded mantle, barely raised elevations; scale bar = 10 μm. Fig. 151. Irregular false pseudoloculi, basal layer with a single poroid areola occluded by a simple raised cribrum; scale bar = 1 μm." captionText-1="FIGURES 153156. Details of two species currently placed in Cerataulus but with characters associated with Trieres and Parodontella. Figs 153,155.Cerataulus strelnikovae P.A. Sims and D.M. Williams, sp. nov. (Vema Cruise 17, core 107, 175cm). Fig. 152. Valve exterior, broadly lanceolate valve with apical elevations lying in opposing directions, 5 stout subcentral spines, the openings of rimoportulae surrounding a central annulus; scale bar = 10 μm. Fig. 155. Detail of transapical rows of irregularly arranged fine poresr within annulus, linked spinules covering annulus (sternum); scale bar = 1 μm. Figs 154156. Cerataulus granulata (Roper) P.A. Sims &amp; D.M. Williams, comb. nov. (“Wunderluss”, locality unknown, ex Brigger colln, BM). Fig. 154. Valve exterior, lanceolate valve with elevations in opposing directions, an ocellus on summit, 2 stout hollow spines, the openings of rimoportulae lying centrally in a subpolar position on opposing sides of a central sternum; scale bar = 10 μm. Fig. 155. Detail of valve exterior with transapical quadruple rows of fine pores meeting annulus (sternum) extending between rimoportulae; scale bar = 1 μm." figureDoi-0="http://doi.org/10.5281/zenodo.13724100" figureDoi-1="http://doi.org/10.5281/zenodo.13724104" httpUri-0="https://zenodo.org/record/13724100/files/figure.png" httpUri-1="https://zenodo.org/record/13724104/files/figure.png" pageId="43" pageNumber="44">Figs 152153</figureCitation>
)
</heading>
</paragraph>
<paragraph id="9A4FB615F437FFBC22DCFCB2FF762318" blockId="43.[136,1452,843,1156]" pageId="43" pageNumber="44">
Valves bipolar, apices with short, squat elevations facing opposite directions, rimmed ocellus slanted dorsally on summit (
<figureCitation id="02CBAA90F437FFBC22A4FC96FED924AC" box="[240,343,879,904]" captionStart="FIGURES 148152" captionStartId="42.[136,243,1739,1760]" captionTargetBox="[172,1418,194,1697]" captionTargetId="figure-15@42.[150,1435,175,1717]" captionTargetPageId="42" captionText="FIGURES 148152. Ralfsiella smithii (=Cerataulus smithii Ralfs in Pritchard) (Beaufort, South Carolina, USA). Fig. 148. Circular valve face with opposing narrow submarginal elevations; positioned midway submarginal hollow spines, the exterior openings of rimoportulae; valve surface covered in a mostly radial pattern of false pseudoloculi, valve mantle slightly indented where it joins narrow hyaline valve margin; scale bar = 10 μm. Fig. 149. Summit of elevation with rimmed ocellus; scale bar = 2 μm. Fig. 150. Frustule with attached girdle bands, flat valve face merging into rounded mantle, barely raised elevations; scale bar = 10 μm. Fig. 151. Irregular false pseudoloculi, basal layer with a single poroid areola occluded by a simple raised cribrum; scale bar = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.13724100" httpUri="https://zenodo.org/record/13724100/files/figure.png" pageId="43" pageNumber="44">Fig. 152</figureCitation>
). Valves distinctly convex with valve centre flattening out. Valve structure loculate with well-developed annulus extending between elevations (
<figureCitation id="02CBAA90F437FFBC2092FC6AFCA72488" box="[710,809,915,940]" captionStart="FIGURES 148152" captionStartId="42.[136,243,1739,1760]" captionTargetBox="[172,1418,194,1697]" captionTargetId="figure-15@42.[150,1435,175,1717]" captionTargetPageId="42" captionText="FIGURES 148152. Ralfsiella smithii (=Cerataulus smithii Ralfs in Pritchard) (Beaufort, South Carolina, USA). Fig. 148. Circular valve face with opposing narrow submarginal elevations; positioned midway submarginal hollow spines, the exterior openings of rimoportulae; valve surface covered in a mostly radial pattern of false pseudoloculi, valve mantle slightly indented where it joins narrow hyaline valve margin; scale bar = 10 μm. Fig. 149. Summit of elevation with rimmed ocellus; scale bar = 2 μm. Fig. 150. Frustule with attached girdle bands, flat valve face merging into rounded mantle, barely raised elevations; scale bar = 10 μm. Fig. 151. Irregular false pseudoloculi, basal layer with a single poroid areola occluded by a simple raised cribrum; scale bar = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.13724100" httpUri="https://zenodo.org/record/13724100/files/figure.png" pageId="43" pageNumber="44">Fig. 152</figureCitation>
, arrow). Exterior valve surface with transapical rows of fine pores extending from central annulus to valve margin, within annulus irregularly arranged, interior with foramina. Valve surface covered with spinules, those within annulus linked (
<figureCitation id="02CBAA90F437FFBC2139FC22FC5E24D0" box="[877,976,987,1012]" captionStart="FIGURES 153156" captionStartId="44.[136,243,1796,1817]" captionTargetBox="[238,1352,185,1758]" captionTargetId="figure-15@44.[221,1366,173,1772]" captionTargetPageId="44" captionText="FIGURES 153156. Details of two species currently placed in Cerataulus but with characters associated with Trieres and Parodontella. Figs 153,155.Cerataulus strelnikovae P.A. Sims and D.M. Williams, sp. nov. (Vema Cruise 17, core 107, 175cm). Fig. 152. Valve exterior, broadly lanceolate valve with apical elevations lying in opposing directions, 5 stout subcentral spines, the openings of rimoportulae surrounding a central annulus; scale bar = 10 μm. Fig. 155. Detail of transapical rows of irregularly arranged fine poresr within annulus, linked spinules covering annulus (sternum); scale bar = 1 μm. Figs 154156. Cerataulus granulata (Roper) P.A. Sims &amp; D.M. Williams, comb. nov. (“Wunderluss”, locality unknown, ex Brigger colln, BM). Fig. 154. Valve exterior, lanceolate valve with elevations in opposing directions, an ocellus on summit, 2 stout hollow spines, the openings of rimoportulae lying centrally in a subpolar position on opposing sides of a central sternum; scale bar = 10 μm. Fig. 155. Detail of valve exterior with transapical quadruple rows of fine pores meeting annulus (sternum) extending between rimoportulae; scale bar = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.13724104" httpUri="https://zenodo.org/record/13724104/files/figure.png" pageId="43" pageNumber="44">Fig. 153</figureCitation>
). Rimoportulae 46, positioned either side of annulus, opening through stout, long tubular spines on valve exterior, internal opening unknown. Girdle bands unknown.
</paragraph>
</subSubSection>
<subSubSection id="D2EAE59EF437FFBC22E9FBBEFA8123E8" pageId="43" pageNumber="44" type="materials_examined">
<paragraph id="9A4FB615F437FFBC22E9FBBEFEDD23A0" blockId="43.[136,1452,843,1156]" pageId="43" pageNumber="44">
<emphasis id="A8846A07F437FFBC22E9FBBEFE902344" bold="true" box="[189,286,1095,1120]" pageId="43" pageNumber="44">Type:—</emphasis>
Vema Cruise 17, core 107, water depth
<quantity id="5D081BF0F437FFBC2154FBBEFCC02344" box="[768,846,1095,1120]" metricMagnitude="3" metricUnit="m" metricValue="1.525" pageId="43" pageNumber="44" unit="m" value="1525.0">1525m</quantity>
[
<collectionCode id="FCE12ED0F437FFBC2108FBBEFC1B2344" box="[860,917,1095,1120]" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15690" lsid="urn:lsid:biocol.org:col:34700" name="California Academy of Sciences" pageId="43" pageNumber="44" type="Museum">CAS</collectionCode>
nos 39573/9 &amp; 10] (
<emphasis id="A8846A07F437FFBC26C8FBBEFECD23A0" bold="true" pageId="43" pageNumber="44">
<collectionCode id="FCE12ED0F437FFBC26C8FBBEFB472344" box="[1180,1225,1095,1120]" country="United Kingdom" name="Bristol Museum" pageId="43" pageNumber="44">BM</collectionCode>
101831,
<typeStatus id="454B08B7F437FFBC276AFBBEFA282344" box="[1342,1446,1095,1120]" pageId="43" pageNumber="44" type="holotype">holotype</typeStatus>
, designated here
</emphasis>
).
</paragraph>
<paragraph id="9A4FB615F437FFBC22DCFB4AFA8123E8" blockId="43.[136,1295,1203,1228]" box="[136,1295,1203,1228]" pageId="43" pageNumber="44">
<emphasis id="A8846A07F437FFBC22DCFB4AFEC223E8" bold="true" box="[136,332,1203,1228]" pageId="43" pageNumber="44">Observations:—</emphasis>
This description is based on specimens from
<typeStatus id="454B08B7F437FFBC2111FB4AFCFB23E8" box="[837,885,1203,1228]" pageId="43" pageNumber="44">type</typeStatus>
material: Vema Cruise 17, core 107.
</paragraph>
</subSubSection>
</treatment>
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