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<document ID-DOI="10.11646/phytotaxa.573.2.7" ID-GBIF-Dataset="3fd5d86e-1214-4796-97df-fb30f3d2200f" ID-ISSN="1179-3163" ID-Zenodo-Dep="7349988" checkinTime="1669187970329" checkinUser="plazi" docAuthor="Sims, Pat A. &amp; Williams, David M." docDate="2022" docId="039E6229FFDDFF9EEF83FAF8FC8DF82E" docLanguage="en" docName="phytotaxa.573.2.7.pdf" docOrigin="Phytotaxa 573 (2)" docSource="http://dx.doi.org/10.11646/phytotaxa.573.2.7" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.5:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="5" docTitle="Kittonia hannai P. Lefebure &amp; Cheneviere 1939" docType="treatment" docVersion="1" lastPageNumber="276" masterDocId="FFA71A51FFDCFF9FEF0BFFCCFFC8FFA0" masterDocTitle="Description of the new species Kittonia kempii (Biddulphiales: Kittoniaceae) with comments on Kittonia hannai P. Lefébure &amp; Chenevière and Kittonia gigantea (Greville) De Toni" masterLastPageNumber="285" masterPageNumber="275" pageNumber="276" updateTime="1669401379767" updateUser="jonas" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Description of the new species Kittonia kempii (Biddulphiales: Kittoniaceae) with comments on Kittonia hannai P. Lefébure &amp; Chenevière and Kittonia gigantea (Greville) De Toni</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Sims, Pat A.</mods:namePart>
<mods:nameIdentifier type="ORCID">0000-0002-0214-8303</mods:nameIdentifier>
<mods:affiliation>p. sims @ nhm. ac. uk; https: // orcid. org / 0000 - 0002 - 0214 - 8303</mods:affiliation>
<mods:nameIdentifier type="email">p.sims@nhm.ac.uk</mods:nameIdentifier>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Williams, David M.</mods:namePart>
<mods:nameIdentifier type="ORCID">0000-0002-0584-307X</mods:nameIdentifier>
<mods:affiliation>d. m. williams @ nhm. ac. uk; https: // orcid. org / 0000 - 0002 - 0584 - 307 X</mods:affiliation>
<mods:nameIdentifier type="email">d.m.williams@nhm.ac.uk</mods:nameIdentifier>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
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<mods:titleInfo>
<mods:title>Phytotaxa</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2022</mods:date>
<mods:detail type="pubDate">
<mods:number>2022-11-23</mods:number>
</mods:detail>
<mods:detail type="volume">
<mods:number>573</mods:number>
</mods:detail>
<mods:detail type="issue">
<mods:number>2</mods:number>
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<mods:start>275</mods:start>
<mods:end>285</mods:end>
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<mods:url>http://dx.doi.org/10.11646/phytotaxa.573.2.7</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">10.11646/phytotaxa.573.2.7</mods:identifier>
<mods:identifier type="GBIF-Dataset">3fd5d86e-1214-4796-97df-fb30f3d2200f</mods:identifier>
<mods:identifier type="ISSN">1179-3163</mods:identifier>
<mods:identifier type="Zenodo-Dep">7349988</mods:identifier>
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<treatment ID-DOI="http://doi.org/10.5281/zenodo.7349996" ID-Zenodo-Dep="7349996" LSID="urn:lsid:plazi:treatment:039E6229FFDDFF9EEF83FAF8FC8DF82E" httpUri="http://treatment.plazi.org/id/039E6229FFDDFF9EEF83FAF8FC8DF82E" lastPageNumber="276" pageId="1" pageNumber="276">
<subSubSection box="[136,1144,1331,1359]" pageId="1" pageNumber="276" type="nomenclature">
<paragraph blockId="1.[136,1452,1331,1538]" box="[136,1144,1331,1359]" pageId="1" pageNumber="276">
<heading bold="true" box="[136,1144,1331,1359]" fontSize="11" level="1" pageId="1" pageNumber="276" reason="1">
<emphasis bold="true" box="[136,1144,1331,1359]" pageId="1" pageNumber="276">
<taxonomicName authority="P. Lefeb. &amp; Chenev. 1939: 23" authorityName="P. Lefebure &amp; Cheneviere" authorityPageNumber="23" authorityYear="1939" box="[136,671,1331,1359]" class="Bacillariophyceae" family="Hemiaulaceae" genus="Kittonia" higherTaxonomySource="GBIF" kingdom="Chromista" order="Hemiaulales" pageId="1" pageNumber="276" phylum="Ochrophyta" rank="species" species="hannai">
<emphasis bold="true" box="[136,318,1332,1359]" italics="true" pageId="1" pageNumber="276">Kittonia hannai</emphasis>
P. Leféb. &amp; Chenev. 1939: 23
</taxonomicName>
, pl. 1, fig. 3 [= our
<figureCitation box="[896,997,1332,1358]" captionStart="FIGURES 8–20" captionStartId="3.[136,248,1901,1923]" captionTargetBox="[252,1337,210,1868]" captionTargetId="figure-19@3.[218,1370,190,1876]" captionTargetPageId="3" captionText="FIGURES 8–20: Kittonia hannai Figs 8–13: Fig. 8, reproduction of drawing for Kittonia hannai P. Leféb. &amp; Chenev. (1939, pl. 1, fig. 3); Fig. 9, SEM whole valve, scale bar = 50μm; Figs 10A, c = Reproduction of illustrations in Brigger &amp; Hanna of Kittonia hannai (Brigger &amp; Hanna 1965, figs 2, 3 = Figs 10a and 10c, respectively); Figs 10b and 11a = Long et al. 1946, pl. 19, figs 6, 7; Fig. 11b = ‘Archaeomonadopsis incerta’ Ramp 1940, p. 63, fig. 3; Figs 12, 13, LM images from Moreno, BM 63885. SCale bar = 50μm (Fig. 9)" figureDoi="http://doi.org/10.5281/zenodo.7349994" httpUri="https://zenodo.org/record/7349994/files/figure.png" pageId="1" pageNumber="276">Figure 8</figureCitation>
] (
<figureCitation box="[1020,1136,1332,1359]" captionStart="FIGURES 8–20" captionStartId="3.[136,248,1901,1923]" captionTargetBox="[252,1337,210,1868]" captionTargetId="figure-19@3.[218,1370,190,1876]" captionTargetPageId="3" captionText="FIGURES 8–20: Kittonia hannai Figs 8–13: Fig. 8, reproduction of drawing for Kittonia hannai P. Leféb. &amp; Chenev. (1939, pl. 1, fig. 3); Fig. 9, SEM whole valve, scale bar = 50μm; Figs 10A, c = Reproduction of illustrations in Brigger &amp; Hanna of Kittonia hannai (Brigger &amp; Hanna 1965, figs 2, 3 = Figs 10a and 10c, respectively); Figs 10b and 11a = Long et al. 1946, pl. 19, figs 6, 7; Fig. 11b = ‘Archaeomonadopsis incerta’ Ramp 1940, p. 63, fig. 3; Figs 12, 13, LM images from Moreno, BM 63885. SCale bar = 50μm (Fig. 9)" figureDoi="http://doi.org/10.5281/zenodo.7349994" httpUri="https://zenodo.org/record/7349994/files/figure.png" pageId="1" pageNumber="276">Figs 8–20</figureCitation>
)
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection pageId="1" pageNumber="276" type="materials_examined">
<paragraph blockId="1.[136,1452,1331,1538]" box="[136,636,1372,1394]" pageId="1" pageNumber="276">
<materialsCitation box="[136,462,1372,1394]" country="United States of America" location="Moreno" pageId="1" pageNumber="276" specimenCount="1" stateProvince="California" typeStatus="holotype">
<typeStatus box="[136,187,1372,1393]" pageId="1" pageNumber="276">Type</typeStatus>
:—
<collectingCountry box="[216,266,1372,1393]" name="United States of America" pageId="1" pageNumber="276">USA</collectingCountry>
.
<location LSID="urn:lsid:plazi:treatment:039E6229FFDDFF9EEF83FAF8FC8DF82E:8EE885E4FFDDFF9EEE19FA90FEA8FAD1" box="[274,352,1372,1393]" country="United States of America" name="Moreno" pageId="1" pageNumber="276" stateProvince="California">Moreno</location>
,
<collectingRegion box="[362,462,1372,1394]" country="United States of America" name="California" pageId="1" pageNumber="276">California</collectingRegion>
</materialsCitation>
,
<collectingCountry box="[472,519,1372,1393]" name="United States of America" pageId="1" pageNumber="276">USA</collectingCountry>
(
<figureCitation box="[531,629,1372,1394]" captionStart="FIGURES 8–20" captionStartId="3.[136,248,1901,1923]" captionTargetBox="[252,1337,210,1868]" captionTargetId="figure-19@3.[218,1370,190,1876]" captionTargetPageId="3" captionText="FIGURES 8–20: Kittonia hannai Figs 8–13: Fig. 8, reproduction of drawing for Kittonia hannai P. Leféb. &amp; Chenev. (1939, pl. 1, fig. 3); Fig. 9, SEM whole valve, scale bar = 50μm; Figs 10A, c = Reproduction of illustrations in Brigger &amp; Hanna of Kittonia hannai (Brigger &amp; Hanna 1965, figs 2, 3 = Figs 10a and 10c, respectively); Figs 10b and 11a = Long et al. 1946, pl. 19, figs 6, 7; Fig. 11b = ‘Archaeomonadopsis incerta’ Ramp 1940, p. 63, fig. 3; Figs 12, 13, LM images from Moreno, BM 63885. SCale bar = 50μm (Fig. 9)" figureDoi="http://doi.org/10.5281/zenodo.7349994" httpUri="https://zenodo.org/record/7349994/files/figure.png" pageId="1" pageNumber="276">Figs 8–20</figureCitation>
)
</paragraph>
<paragraph blockId="1.[136,1452,1331,1538]" pageId="1" pageNumber="276">
Illustrations:—
<bibRefCitation author="Long, J. A. &amp; Fuge, D. P. &amp; Smith, J." box="[281,448,1408,1430]" pageId="1" pageNumber="276" pagination="89 - 118" refId="ref5610" refString="Long, J. A., Fuge, D. P. &amp; Smith, J. (1946) Diatoms of the Moreno Shale. Journal of Paleontology 20: 89 - 118. [https: // www. jstor. org / stable / 1299377]" type="journal article" year="1946">
Long
<emphasis box="[339,389,1408,1429]" italics="true" pageId="1" pageNumber="276">et al.</emphasis>
1946
</bibRefCitation>
: pl. 19, figs 6, 7;
<bibRefCitation author="Brigger, A. L. &amp; Hanna, G. D." box="[622,850,1408,1430]" pageId="1" pageNumber="276" pagination="1 - 10" refId="ref4958" refString="Brigger, A. L. &amp; Hanna, G. D. (1965) A review of Kittonia, a genus of diatoms. Occasional Papers of the California Academy of Sciences 50: 1 - 10. [https: // www. biodiversitylibrary. org / page / 3163873]" type="journal article" year="1965">Brigger &amp; Hanna 1965</bibRefCitation>
: figs 2, 3 =
<figureCitation box="[969,1168,1408,1430]" captionStart="FIGURES 8–20" captionStartId="3.[136,248,1901,1923]" captionTargetBox="[252,1337,210,1868]" captionTargetId="figure-19@3.[218,1370,190,1876]" captionTargetPageId="3" captionText="FIGURES 8–20: Kittonia hannai Figs 8–13: Fig. 8, reproduction of drawing for Kittonia hannai P. Leféb. &amp; Chenev. (1939, pl. 1, fig. 3); Fig. 9, SEM whole valve, scale bar = 50μm; Figs 10A, c = Reproduction of illustrations in Brigger &amp; Hanna of Kittonia hannai (Brigger &amp; Hanna 1965, figs 2, 3 = Figs 10a and 10c, respectively); Figs 10b and 11a = Long et al. 1946, pl. 19, figs 6, 7; Fig. 11b = ‘Archaeomonadopsis incerta’ Ramp 1940, p. 63, fig. 3; Figs 12, 13, LM images from Moreno, BM 63885. SCale bar = 50μm (Fig. 9)" figureDoi="http://doi.org/10.5281/zenodo.7349994" httpUri="https://zenodo.org/record/7349994/files/figure.png" pageId="1" pageNumber="276">Figures 10a and 10c</figureCitation>
, respectively);
<bibRefCitation author="Cornell, W. C." pageId="1" pageNumber="276" pagination="1121 - 1122" refId="ref5037" refString="Cornell, W. C. (1973) Archaeomonadopsis incerta Rampi, 1940; a diatom fragment. Journal of Paleontology 47 (6): 1121 - 1122. [https: // www. jstor. org / stable / 1303178]" type="journal article" year="1973">Cornell 1973: 1121</bibRefCitation>
, text-fig. 2 (text-fig. 1 = ‘
<taxonomicName authority="' Ramp 1940" authorityName="' Ramp" authorityYear="1940" box="[493,890,1444,1465]" class="Chrysophyceae" family="Archaeomonadaceae" genus="Archaeomonadopsis" kingdom="Chromista" pageId="1" pageNumber="276" phylum="Ochrophyta" rank="species" species="incerta">
<emphasis box="[493,764,1444,1465]" italics="true" pageId="1" pageNumber="276">Archaeomonadopsis incerta</emphasis>
’ Ramp 1940
</taxonomicName>
[see
<figureCitation box="[943,1026,1444,1466]" captionStart="FIGURES 8–20" captionStartId="3.[136,248,1901,1923]" captionTargetBox="[252,1337,210,1868]" captionTargetId="figure-19@3.[218,1370,190,1876]" captionTargetPageId="3" captionText="FIGURES 8–20: Kittonia hannai Figs 8–13: Fig. 8, reproduction of drawing for Kittonia hannai P. Leféb. &amp; Chenev. (1939, pl. 1, fig. 3); Fig. 9, SEM whole valve, scale bar = 50μm; Figs 10A, c = Reproduction of illustrations in Brigger &amp; Hanna of Kittonia hannai (Brigger &amp; Hanna 1965, figs 2, 3 = Figs 10a and 10c, respectively); Figs 10b and 11a = Long et al. 1946, pl. 19, figs 6, 7; Fig. 11b = ‘Archaeomonadopsis incerta’ Ramp 1940, p. 63, fig. 3; Figs 12, 13, LM images from Moreno, BM 63885. SCale bar = 50μm (Fig. 9)" figureDoi="http://doi.org/10.5281/zenodo.7349994" httpUri="https://zenodo.org/record/7349994/files/figure.png" pageId="1" pageNumber="276">Fig. 11b</figureCitation>
, reproduced from Ramp 1940: 63, fig. 3] = ‘broken processes of the biddulphoid diatom
<taxonomicName authority="Lefebure" authorityName="P. Lefebure &amp; Cheneviere" authorityYear="1939" box="[619,862,1480,1502]" class="Bacillariophyceae" family="Hemiaulaceae" genus="Kittonia" higherTaxonomySource="GBIF" kingdom="Chromista" order="Hemiaulales" pageId="1" pageNumber="276" phylum="Ochrophyta" rank="species" species="hannai">
<emphasis box="[619,770,1480,1501]" italics="true" pageId="1" pageNumber="276">Kittonia hannai</emphasis>
Lefébure
</taxonomicName>
&amp; Chenevière’);
<bibRefCitation author="Wornardt, W. W." box="[1027,1174,1480,1502]" pageId="1" pageNumber="276" pagination="49 - 74" refId="ref6202" refString="Wornardt, W. W. (1972) Stratigraphic distribution of diatom genera in marine sediments in western North America. Palaeogeography, Palaeoclimatology, Palaeoecology 12: 49 - 74. https: // doi. org / 10.1016 / 0031 - 0182 (72) 90006 - 5" type="journal article" year="1972">Wornardt 1972</bibRefCitation>
: pl.4, fig. l;
<bibRefCitation author="Chambers, P. M." box="[1286,1448,1480,1502]" pageId="1" pageNumber="276" refId="ref5082" refString="Chambers, P. M. (1997) Lat e Cretaceous and Paleocene marine diatom floras. Doctoral thesis (Ph. D), UCL (University College London). [https: // discovery. ucl. ac. uk / id / eprint / 10104676 /]" type="url" year="1997">Chambers (1997</bibRefCitation>
: pl.14, figs 10, 11, Maastrichtian, Moreno Shale,
<collectionCode box="[654,691,1516,1537]" country="United Kingdom" name="Bristol Museum" pageId="1" pageNumber="276">BM</collectionCode>
63885!,
<specimenCount box="[778,913,1516,1538]" pageId="1" pageNumber="276" type="generic">one specimen</specimenCount>
).
</paragraph>
<paragraph blockId="1.[136,1452,1584,1935]" pageId="1" pageNumber="276">
Valve face triangular with barely rounded apices and almost straight valve margins (
<figureCitation box="[1058,1214,1584,1610]" captionStart="FIGURES 8–20" captionStartId="3.[136,248,1901,1923]" captionTargetBox="[252,1337,210,1868]" captionTargetId="figure-19@3.[218,1370,190,1876]" captionTargetPageId="3" captionText="FIGURES 8–20: Kittonia hannai Figs 8–13: Fig. 8, reproduction of drawing for Kittonia hannai P. Leféb. &amp; Chenev. (1939, pl. 1, fig. 3); Fig. 9, SEM whole valve, scale bar = 50μm; Figs 10A, c = Reproduction of illustrations in Brigger &amp; Hanna of Kittonia hannai (Brigger &amp; Hanna 1965, figs 2, 3 = Figs 10a and 10c, respectively); Figs 10b and 11a = Long et al. 1946, pl. 19, figs 6, 7; Fig. 11b = ‘Archaeomonadopsis incerta’ Ramp 1940, p. 63, fig. 3; Figs 12, 13, LM images from Moreno, BM 63885. SCale bar = 50μm (Fig. 9)" figureDoi="http://doi.org/10.5281/zenodo.7349994" httpUri="https://zenodo.org/record/7349994/files/figure.png" pageId="1" pageNumber="276">Figs 9, 12–14</figureCitation>
). Valve face probably slightly convex, weakly silicified specimens collapse (
<figureCitation box="[733,889,1620,1646]" captionStart="FIGURES 8–20" captionStartId="3.[136,248,1901,1923]" captionTargetBox="[252,1337,210,1868]" captionTargetId="figure-19@3.[218,1370,190,1876]" captionTargetPageId="3" captionText="FIGURES 8–20: Kittonia hannai Figs 8–13: Fig. 8, reproduction of drawing for Kittonia hannai P. Leféb. &amp; Chenev. (1939, pl. 1, fig. 3); Fig. 9, SEM whole valve, scale bar = 50μm; Figs 10A, c = Reproduction of illustrations in Brigger &amp; Hanna of Kittonia hannai (Brigger &amp; Hanna 1965, figs 2, 3 = Figs 10a and 10c, respectively); Figs 10b and 11a = Long et al. 1946, pl. 19, figs 6, 7; Fig. 11b = ‘Archaeomonadopsis incerta’ Ramp 1940, p. 63, fig. 3; Figs 12, 13, LM images from Moreno, BM 63885. SCale bar = 50μm (Fig. 9)" figureDoi="http://doi.org/10.5281/zenodo.7349994" httpUri="https://zenodo.org/record/7349994/files/figure.png" pageId="1" pageNumber="276">Figs 9, 12–14</figureCitation>
). Valve centre circular, diameter ca. 10µm, hyaline. Valve surface covered with small granules (
<figureCitation box="[630,714,1656,1682]" captionStart="FIGURES 8–20" captionStartId="3.[136,248,1901,1923]" captionTargetBox="[252,1337,210,1868]" captionTargetId="figure-19@3.[218,1370,190,1876]" captionTargetPageId="3" captionText="FIGURES 8–20: Kittonia hannai Figs 8–13: Fig. 8, reproduction of drawing for Kittonia hannai P. Leféb. &amp; Chenev. (1939, pl. 1, fig. 3); Fig. 9, SEM whole valve, scale bar = 50μm; Figs 10A, c = Reproduction of illustrations in Brigger &amp; Hanna of Kittonia hannai (Brigger &amp; Hanna 1965, figs 2, 3 = Figs 10a and 10c, respectively); Figs 10b and 11a = Long et al. 1946, pl. 19, figs 6, 7; Fig. 11b = ‘Archaeomonadopsis incerta’ Ramp 1940, p. 63, fig. 3; Figs 12, 13, LM images from Moreno, BM 63885. SCale bar = 50μm (Fig. 9)" figureDoi="http://doi.org/10.5281/zenodo.7349994" httpUri="https://zenodo.org/record/7349994/files/figure.png" pageId="1" pageNumber="276">Fig. 18</figureCitation>
). Marginal fold separates valve face from deep mantle ca. 15 µm lying beyond valve face (
<figureCitation box="[430,594,1692,1718]" captionStart="FIGURES 8–20" captionStartId="3.[136,248,1901,1923]" captionTargetBox="[252,1337,210,1868]" captionTargetId="figure-19@3.[218,1370,190,1876]" captionTargetPageId="3" captionText="FIGURES 8–20: Kittonia hannai Figs 8–13: Fig. 8, reproduction of drawing for Kittonia hannai P. Leféb. &amp; Chenev. (1939, pl. 1, fig. 3); Fig. 9, SEM whole valve, scale bar = 50μm; Figs 10A, c = Reproduction of illustrations in Brigger &amp; Hanna of Kittonia hannai (Brigger &amp; Hanna 1965, figs 2, 3 = Figs 10a and 10c, respectively); Figs 10b and 11a = Long et al. 1946, pl. 19, figs 6, 7; Fig. 11b = ‘Archaeomonadopsis incerta’ Ramp 1940, p. 63, fig. 3; Figs 12, 13, LM images from Moreno, BM 63885. SCale bar = 50μm (Fig. 9)" figureDoi="http://doi.org/10.5281/zenodo.7349994" httpUri="https://zenodo.org/record/7349994/files/figure.png" pageId="1" pageNumber="276">Figs 9, 12–14</figureCitation>
). Tubular coiled process arises from circular hyaline area within angles of valve face, diameter ca. 12µm (
<figureCitation box="[501,797,1728,1754]" captionStart="FIGURES 8–20" captionStartId="3.[136,248,1901,1923]" captionTargetBox="[252,1337,210,1868]" captionTargetId="figure-19@3.[218,1370,190,1876]" captionTargetPageId="3" captionText="FIGURES 8–20: Kittonia hannai Figs 8–13: Fig. 8, reproduction of drawing for Kittonia hannai P. Leféb. &amp; Chenev. (1939, pl. 1, fig. 3); Fig. 9, SEM whole valve, scale bar = 50μm; Figs 10A, c = Reproduction of illustrations in Brigger &amp; Hanna of Kittonia hannai (Brigger &amp; Hanna 1965, figs 2, 3 = Figs 10a and 10c, respectively); Figs 10b and 11a = Long et al. 1946, pl. 19, figs 6, 7; Fig. 11b = ‘Archaeomonadopsis incerta’ Ramp 1940, p. 63, fig. 3; Figs 12, 13, LM images from Moreno, BM 63885. SCale bar = 50μm (Fig. 9)" figureDoi="http://doi.org/10.5281/zenodo.7349994" httpUri="https://zenodo.org/record/7349994/files/figure.png" pageId="1" pageNumber="276">Figs 9, 12–14, 16, 19, 20</figureCitation>
), summit of club-shaped (
<figureCitation box="[1099,1184,1728,1755]" captionStart="FIGURES 8–20" captionStartId="3.[136,248,1901,1923]" captionTargetBox="[252,1337,210,1868]" captionTargetId="figure-19@3.[218,1370,190,1876]" captionTargetPageId="3" captionText="FIGURES 8–20: Kittonia hannai Figs 8–13: Fig. 8, reproduction of drawing for Kittonia hannai P. Leféb. &amp; Chenev. (1939, pl. 1, fig. 3); Fig. 9, SEM whole valve, scale bar = 50μm; Figs 10A, c = Reproduction of illustrations in Brigger &amp; Hanna of Kittonia hannai (Brigger &amp; Hanna 1965, figs 2, 3 = Figs 10a and 10c, respectively); Figs 10b and 11a = Long et al. 1946, pl. 19, figs 6, 7; Fig. 11b = ‘Archaeomonadopsis incerta’ Ramp 1940, p. 63, fig. 3; Figs 12, 13, LM images from Moreno, BM 63885. SCale bar = 50μm (Fig. 9)" figureDoi="http://doi.org/10.5281/zenodo.7349994" httpUri="https://zenodo.org/record/7349994/files/figure.png" pageId="1" pageNumber="276">Fig. 15</figureCitation>
). Ocellus-like structure on surface of each summit, stalk pierced by occasional poroids (Fig. 15,19, 20). Areolae poroid, circular occluded by cribra arranged in rows radiating from valve centre to valve margin ca.
<quantity box="[947,991,1800,1827]" metricMagnitude="-1" metricUnit="m" metricValue="1.27" pageId="1" pageNumber="276" unit="in" value="5.0">5 in</quantity>
10µm (
<figureCitation box="[1080,1254,1800,1826]" captionStart="FIGURES 8–20" captionStartId="3.[136,248,1901,1923]" captionTargetBox="[252,1337,210,1868]" captionTargetId="figure-19@3.[218,1370,190,1876]" captionTargetPageId="3" captionText="FIGURES 8–20: Kittonia hannai Figs 8–13: Fig. 8, reproduction of drawing for Kittonia hannai P. Leféb. &amp; Chenev. (1939, pl. 1, fig. 3); Fig. 9, SEM whole valve, scale bar = 50μm; Figs 10A, c = Reproduction of illustrations in Brigger &amp; Hanna of Kittonia hannai (Brigger &amp; Hanna 1965, figs 2, 3 = Figs 10a and 10c, respectively); Figs 10b and 11a = Long et al. 1946, pl. 19, figs 6, 7; Fig. 11b = ‘Archaeomonadopsis incerta’ Ramp 1940, p. 63, fig. 3; Figs 12, 13, LM images from Moreno, BM 63885. SCale bar = 50μm (Fig. 9)" figureDoi="http://doi.org/10.5281/zenodo.7349994" httpUri="https://zenodo.org/record/7349994/files/figure.png" pageId="1" pageNumber="276">Figs 14, 16–18</figureCitation>
); interstrial pores present. Single or double row of areolae present on valve margin appearing to lie vertically to mantle, margins ca. 6µm deep (
<figureCitation box="[203,375,1872,1898]" captionStart="FIGURES 8–20" captionStartId="3.[136,248,1901,1923]" captionTargetBox="[252,1337,210,1868]" captionTargetId="figure-19@3.[218,1370,190,1876]" captionTargetPageId="3" captionText="FIGURES 8–20: Kittonia hannai Figs 8–13: Fig. 8, reproduction of drawing for Kittonia hannai P. Leféb. &amp; Chenev. (1939, pl. 1, fig. 3); Fig. 9, SEM whole valve, scale bar = 50μm; Figs 10A, c = Reproduction of illustrations in Brigger &amp; Hanna of Kittonia hannai (Brigger &amp; Hanna 1965, figs 2, 3 = Figs 10a and 10c, respectively); Figs 10b and 11a = Long et al. 1946, pl. 19, figs 6, 7; Fig. 11b = ‘Archaeomonadopsis incerta’ Ramp 1940, p. 63, fig. 3; Figs 12, 13, LM images from Moreno, BM 63885. SCale bar = 50μm (Fig. 9)" figureDoi="http://doi.org/10.5281/zenodo.7349994" httpUri="https://zenodo.org/record/7349994/files/figure.png" pageId="1" pageNumber="276">Figs 14, 16–18</figureCitation>
). Rimoportulae, 3–8, occurring within hyaline valve centre, exterior openings through short oval tube, interior an elongate slit between raised lips (
<figureCitation box="[694,823,1908,1934]" captionStart="FIGURES 8–20" captionStartId="3.[136,248,1901,1923]" captionTargetBox="[252,1337,210,1868]" captionTargetId="figure-19@3.[218,1370,190,1876]" captionTargetPageId="3" captionText="FIGURES 8–20: Kittonia hannai Figs 8–13: Fig. 8, reproduction of drawing for Kittonia hannai P. Leféb. &amp; Chenev. (1939, pl. 1, fig. 3); Fig. 9, SEM whole valve, scale bar = 50μm; Figs 10A, c = Reproduction of illustrations in Brigger &amp; Hanna of Kittonia hannai (Brigger &amp; Hanna 1965, figs 2, 3 = Figs 10a and 10c, respectively); Figs 10b and 11a = Long et al. 1946, pl. 19, figs 6, 7; Fig. 11b = ‘Archaeomonadopsis incerta’ Ramp 1940, p. 63, fig. 3; Figs 12, 13, LM images from Moreno, BM 63885. SCale bar = 50μm (Fig. 9)" figureDoi="http://doi.org/10.5281/zenodo.7349994" httpUri="https://zenodo.org/record/7349994/files/figure.png" pageId="1" pageNumber="276">Figs 17, 18</figureCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>
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