205 lines
38 KiB
XML
205 lines
38 KiB
XML
<document id="7E812134CC3AD985D7FBF74AE0855C8A" ID-CLB-Dataset="111190" ID-DOI="10.11646/phytotaxa.556.1.3" ID-GBIF-Dataset="ac636d2a-3e29-49a7-a37c-a44fb4e0e878" ID-ISSN="1179-3163" ID-Zenodo-Dep="6951967" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1659436889185" checkinUser="plazi" docAuthor="Stone, Jeffery R., Wilson, Mallory C. & Jovanovska, Elena" docDate="2022" docId="03AC87E9455AFFA6FF28FB71FD9B0223" docLanguage="en" docName="phytotaxa.556.1.3.pdf" docOrigin="Phytotaxa 556 (1)" docSource="http://dx.doi.org/10.11646/phytotaxa.556.1.3" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.7:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="7" docTitle="Afrocymbella nyassae Stone & Wilson & Jovanovska 2022, sp. nov." docType="treatment" docVersion="5" lastPageNumber="25" masterDocId="FF95FF91455EFFA2FFA0FFC5FFAE0A04" masterDocTitle="The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species" masterLastPageNumber="48" masterPageNumber="21" pageNumber="25" updateTime="1699362577316" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
|
||
<mods:mods id="06E4B81A4B97D340110038C70C6A51D2" xmlns:mods="http://www.loc.gov/mods/v3">
|
||
<mods:titleInfo id="E8A3513B342A48999951BC482FAE5284">
|
||
<mods:title id="DD2183291A2AD2E7EFF582FFC2907B1A">The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species</mods:title>
|
||
</mods:titleInfo>
|
||
<mods:name id="40BC110737C2F01F5F16167EFC0260A5" type="personal">
|
||
<mods:role id="C3664115468D7FAE028DFD8016E78EEC">
|
||
<mods:roleTerm id="BBC6D883F0A5A9025045E4EA44567E37">Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart id="D815C3A23B4C198A0FD39B9E7C19DF0D">Stone, Jeffery R.</mods:namePart>
|
||
<mods:nameIdentifier id="4E407AC6BD7DD2F338F05D3790DAD96B" type="ORCID">0000-0002-1313-0643</mods:nameIdentifier>
|
||
<mods:affiliation id="9B0F257EAD0035F1C2AFACD769B2444A">Indiana State University, Department of Earth and Environmental Systems, Terre Haute, Indiana, U. S. A. & jeffery. stone @ indstate. edu; https: // orcid. org / 0000 - 0002 - 1313 - 0643</mods:affiliation>
|
||
<mods:nameIdentifier id="564B56F9CCD290DC078B2E830708E96C" type="email">jeffery.stone@indstate.edu</mods:nameIdentifier>
|
||
</mods:name>
|
||
<mods:name id="A03BFFAC0FE93CE604C382CB04F5A0CD" type="personal">
|
||
<mods:role id="32DBD99B53AF3FC3658F25B9A19E6E2D">
|
||
<mods:roleTerm id="2FAE25D7EDCD7AF3FD20B73CEA36D299">Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart id="59160B14E8FFAD1F0C89E086959932DF">Wilson, Mallory C.</mods:namePart>
|
||
<mods:nameIdentifier id="847C4667B521ED1D73E83F2B3FB78B47" type="ORCID">0000-0002-2852-125X</mods:nameIdentifier>
|
||
<mods:affiliation id="B8D22895BEB3D1A5B88B5BD82D35A823">Indiana State University, Department of Earth and Environmental Systems, Terre Haute, Indiana, U. S. A. & mwilson 108 @ sycamores. indstate. edu; https: // orcid. org / 0000 - 0002 - 2852 - 125 X</mods:affiliation>
|
||
<mods:nameIdentifier id="9B250B76DA6E2BC59BCFB8057B0AC1E9" type="email">mwilson108@sycamores.indstate.edu</mods:nameIdentifier>
|
||
</mods:name>
|
||
<mods:name id="813F845DB1B41589D9026AF7A1F1AAF2" type="personal">
|
||
<mods:role id="C0B0999364FF198882859BE681F8B42C">
|
||
<mods:roleTerm id="96A62A406989632E60EF6432BE930D31">Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart id="5364895C3FD23B06A8FF49EC0FE7ABAD">Jovanovska, Elena</mods:namePart>
|
||
<mods:nameIdentifier id="4A5D058B00CE8D505783901F523AB4FE" type="ORCID">0000-0002-3413-3683</mods:nameIdentifier>
|
||
<mods:affiliation id="6625B8EAE7CBDCA884A50FA488CAFC78">Senckenberg Research Institute, Department of Paleoanthropology, Frankfurt am Main, Germany & jovanovska. eci @ gmail. com; https: // orcid. org / 0000 - 0002 - 3413 - 3683</mods:affiliation>
|
||
<mods:nameIdentifier id="25D1853FEF69CD9B0A20286DBD6767B3" type="email">jovanovska.eci@gmail.com</mods:nameIdentifier>
|
||
</mods:name>
|
||
<mods:typeOfResource id="37749212502D6B52EA68A087A294F1CC">text</mods:typeOfResource>
|
||
<mods:relatedItem id="D9C1FB972F8660C300BEF34D22159596" type="host">
|
||
<mods:titleInfo id="AD1BA2791658A50FA4B7A8878E299E00">
|
||
<mods:title id="A28E35E9D65584FC15B7C86CFFD0BB45">Phytotaxa</mods:title>
|
||
</mods:titleInfo>
|
||
<mods:part id="4572A27F5DC886AAB55C66BF88DEC2AA">
|
||
<mods:date id="B2BE09D9998D5FFA51EF8C8844CC2DD2">2022</mods:date>
|
||
<mods:detail id="2F4D47FBED5C1B4604397D22FF6E45F6" type="pubDate">
|
||
<mods:number id="7496D4E0FAAF915A6E69708E1D0C6690">2022-08-01</mods:number>
|
||
</mods:detail>
|
||
<mods:detail id="799381C866D992DC7BEA6250AB85EA2F" type="volume">
|
||
<mods:number id="B3E52B241117767F1C3C81520880239C">556</mods:number>
|
||
</mods:detail>
|
||
<mods:detail id="8B6DF931B1BD44BBD54F227554BF3C7D" type="issue">
|
||
<mods:number id="00E432AC2BC464E973E8D4E1012EF212">1</mods:number>
|
||
</mods:detail>
|
||
<mods:extent id="5627F624F24D82F092F85C3F1E34EFD5" unit="page">
|
||
<mods:start id="DD4B67DDC3F05FF72D18E25ABA5FF6FA">21</mods:start>
|
||
<mods:end id="F1A90341A5E763ABED70A6E889841927">48</mods:end>
|
||
</mods:extent>
|
||
</mods:part>
|
||
</mods:relatedItem>
|
||
<mods:location id="8478C85679630F287FC2D16641CD0BE9">
|
||
<mods:url id="949CEEBABD9FE591B171CE54986A01AE">http://dx.doi.org/10.11646/phytotaxa.556.1.3</mods:url>
|
||
</mods:location>
|
||
<mods:classification id="5FCAA116118EF9C9CFA8CE3B8BD68454">journal article</mods:classification>
|
||
<mods:identifier id="192D0509D01A140850FE9242B5D48488" type="CLB-Dataset">111190</mods:identifier>
|
||
<mods:identifier id="78167D00B26C4D168346AF40B3B5309A" type="DOI">10.11646/phytotaxa.556.1.3</mods:identifier>
|
||
<mods:identifier id="7F7BA279BBAC1074A85CD5944F762C72" type="GBIF-Dataset">ac636d2a-3e29-49a7-a37c-a44fb4e0e878</mods:identifier>
|
||
<mods:identifier id="7543F0A8D222B1D0A71E7933F8BF73C1" type="ISSN">1179-3163</mods:identifier>
|
||
<mods:identifier id="1EA3787F51BF256837F06AA648EE86BE" type="Zenodo-Dep">6951967</mods:identifier>
|
||
</mods:mods>
|
||
<treatment id="03AC87E9455AFFA6FF28FB71FD9B0223" ID-DOI="http://doi.org/10.5281/zenodo.6951977" ID-GBIF-Taxon="198475012" ID-Zenodo-Dep="6951977" LSID="urn:lsid:plazi:treatment:03AC87E9455AFFA6FF28FB71FD9B0223" httpUri="http://treatment.plazi.org/id/03AC87E9455AFFA6FF28FB71FD9B0223" lastPageNumber="25" pageId="4" pageNumber="25">
|
||
<subSubSection id="C31F6574455AFFA6FF28FB71FCDA0ECB" box="[136,884,1204,1231]" pageId="4" pageNumber="25" type="nomenclature">
|
||
<paragraph id="8BBA36FF455AFFA6FF28FB71FCDA0ECB" blockId="4.[136,884,1204,1231]" box="[136,884,1204,1231]" pageId="4" pageNumber="25">
|
||
<heading id="D0F28193455AFFA6FF28FB71FCDA0ECB" box="[136,884,1204,1231]" fontSize="11" level="2" pageId="4" pageNumber="25" reason="3">
|
||
<emphasis id="B971EAED455AFFA6FF28FB71FE4F0ECA" box="[136,481,1204,1231]" italics="true" pageId="4" pageNumber="25">
|
||
<taxonomicName id="4C054D7C455AFFA6FF28FB71FE2B0ECA" authority="Stone & Wilson & Jovanovska, 2022" authorityName="Stone & Wilson & Jovanovska" authorityYear="2022" box="[136,389,1204,1231]" class="Bacillariophyceae" family="Cymbellaceae" genus="Afrocymbella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Cymbellales" pageId="4" pageNumber="25" phylum="Ochrophyta" rank="species" species="nyassae" status="sp. nov.">
|
||
<emphasis id="B971EAED455AFFA6FF28FB71FE2B0ECA" bold="true" box="[136,389,1204,1231]" italics="true" pageId="4" pageNumber="25">Afrocymbella nyassae</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A2425796455AFFA6FE2CFB70FE4F0ECA" box="[396,481,1205,1230]" pageId="4" pageNumber="25" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
(LM
|
||
<figureCitation id="133E2A7A455AFFA6FD81FB71FD0F0ECB" box="[545,673,1204,1231]" captionStart="FIGURES 32–53" captionStartId="8.[136,243,1408,1430]" captionTargetBox="[151,1436,190,1383]" captionTargetId="figure-30@8.[151,1436,190,1383]" captionTargetPageId="8" captionText="FIGURES 32–53. Afrocymbella nyassae sp. nov., LM valve views.All valves displayed from the type material (core sample MAL05-1C- 26E2, 17–18 cm, ~135.5 ka). Fig. 39. Holotype specimen. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.6951993" httpUri="https://zenodo.org/record/6951993/files/figure.png" pageId="4" pageNumber="25">Figs 32–53</figureCitation>
|
||
, SEM
|
||
<figureCitation id="133E2A7A455AFFA6FD4DFB71FCC20ECB" box="[749,876,1204,1231]" captionStart-0="FIGURES 54–56" captionStart-1="FIGURES 57–59" captionStartId-0="9.[136,243,1623,1645]" captionStartId-1="10.[136,243,1675,1697]" captionTargetBox-0="[151,1435,190,1599]" captionTargetBox-1="[151,1435,190,1651]" captionTargetId-0="figure-18@9.[151,1435,190,1599]" captionTargetId-1="figure-30@10.[151,1435,190,1651]" captionTargetPageId-0="9" captionTargetPageId-1="10" captionText-0="FIGURES 54–56. Afrocymbella nyassae sp. nov., SEM external valve views. 54. Half-valve showing uniseriate striae and single stigmoid positioned distally from the round, slightly asymmetric central area. 55. View of the whole valve showing raphe structure and striae continuing onto valve mantle. 56. Close view of distal raphe terminal fissure andAPF of round poroids. Scale bars = 5 μm (Fig. 54), 2 μm (Fig. 55), 1 μm (Fig. 56)." captionText-1="FIGURES 57–59. Afrocymbella nyassae sp. nov., SEM internal valve views. 57. View of the whole valve showing raphe structure and areolae without velum. 58. Detail of mid-valve of a broken valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 59. Close view of valve apices showing APF with knobby jointed ridge of silica (white arrow) and distal raphe fissures slightly raised into small helictoglossae. Scale bars = 5 μm (Figs 57–58), 2 μm (Fig. 59)." figureDoi-0="http://doi.org/10.5281/zenodo.6951995" figureDoi-1="http://doi.org/10.5281/zenodo.6951997" httpUri-0="https://zenodo.org/record/6951995/files/figure.png" httpUri-1="https://zenodo.org/record/6951997/files/figure.png" pageId="4" pageNumber="25">Figs 54–59</figureCitation>
|
||
)
|
||
</heading>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C31F6574455AFFA6FF28FB30FF5F0CE0" pageId="4" pageNumber="25" type="description">
|
||
<paragraph id="8BBA36FF455AFFA6FF28FB30FF5F0CE0" blockId="4.[136,1452,1269,2088]" pageId="4" pageNumber="25">
|
||
<emphasis id="B971EAED455AFFA6FF28FB30FE960F0B" bold="true" box="[136,312,1269,1295]" pageId="4" pageNumber="25">Description:—</emphasis>
|
||
Valve length 20–30 μm, valve breadth 7–10 μm. Length to breadth ratio: 2.8. Valves distinctly dorsiventral and heteropolar, semirhomboid-lanceolate (
|
||
<figureCitation id="133E2A7A455AFFA6FD5EFADCFC2C0F30" box="[766,898,1305,1332]" captionStart-0="FIGURES 32–53" captionStart-1="FIGURES 54–56" captionStart-2="FIGURES 57–59" captionStartId-0="8.[136,243,1408,1430]" captionStartId-1="9.[136,243,1623,1645]" captionStartId-2="10.[136,243,1675,1697]" captionTargetBox-0="[151,1436,190,1383]" captionTargetBox-1="[151,1435,190,1599]" captionTargetBox-2="[151,1435,190,1651]" captionTargetId-0="figure-30@8.[151,1436,190,1383]" captionTargetId-1="figure-18@9.[151,1435,190,1599]" captionTargetId-2="figure-30@10.[151,1435,190,1651]" captionTargetPageId-0="8" captionTargetPageId-1="9" captionTargetPageId-2="10" captionText-0="FIGURES 32–53. Afrocymbella nyassae sp. nov., LM valve views.All valves displayed from the type material (core sample MAL05-1C- 26E2, 17–18 cm, ~135.5 ka). Fig. 39. Holotype specimen. Scale bar = 10 μm." captionText-1="FIGURES 54–56. Afrocymbella nyassae sp. nov., SEM external valve views. 54. Half-valve showing uniseriate striae and single stigmoid positioned distally from the round, slightly asymmetric central area. 55. View of the whole valve showing raphe structure and striae continuing onto valve mantle. 56. Close view of distal raphe terminal fissure andAPF of round poroids. Scale bars = 5 μm (Fig. 54), 2 μm (Fig. 55), 1 μm (Fig. 56)." captionText-2="FIGURES 57–59. Afrocymbella nyassae sp. nov., SEM internal valve views. 57. View of the whole valve showing raphe structure and areolae without velum. 58. Detail of mid-valve of a broken valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 59. Close view of valve apices showing APF with knobby jointed ridge of silica (white arrow) and distal raphe fissures slightly raised into small helictoglossae. Scale bars = 5 μm (Figs 57–58), 2 μm (Fig. 59)." figureDoi-0="http://doi.org/10.5281/zenodo.6951993" figureDoi-1="http://doi.org/10.5281/zenodo.6951995" figureDoi-2="http://doi.org/10.5281/zenodo.6951997" httpUri-0="https://zenodo.org/record/6951993/files/figure.png" httpUri-1="https://zenodo.org/record/6951995/files/figure.png" httpUri-2="https://zenodo.org/record/6951997/files/figure.png" pageId="4" pageNumber="25">Figs 32–59</figureCitation>
|
||
). Dorsal margin distinctly arched, ventral margin with gibbous center portion, though otherwise slightly convex (
|
||
<figureCitation id="133E2A7A455AFFA6FCDEFAF8FC760F5C" box="[894,984,1341,1368]" captionStart="FIGURES 54–56" captionStartId="9.[136,243,1623,1645]" captionTargetBox="[151,1435,190,1599]" captionTargetId="figure-18@9.[151,1435,190,1599]" captionTargetPageId="9" captionText="FIGURES 54–56. Afrocymbella nyassae sp. nov., SEM external valve views. 54. Half-valve showing uniseriate striae and single stigmoid positioned distally from the round, slightly asymmetric central area. 55. View of the whole valve showing raphe structure and striae continuing onto valve mantle. 56. Close view of distal raphe terminal fissure andAPF of round poroids. Scale bars = 5 μm (Fig. 54), 2 μm (Fig. 55), 1 μm (Fig. 56)." figureDoi="http://doi.org/10.5281/zenodo.6951995" httpUri="https://zenodo.org/record/6951995/files/figure.png" pageId="4" pageNumber="25">Fig. 55</figureCitation>
|
||
). Valve apices with rostrate and nearly symmetrical poles (
|
||
<figureCitation id="133E2A7A455AFFA6FEC7FAA4FE420F78" box="[359,492,1377,1404]" captionStart="FIGURES 32–53" captionStartId="8.[136,243,1408,1430]" captionTargetBox="[151,1436,190,1383]" captionTargetId="figure-30@8.[151,1436,190,1383]" captionTargetPageId="8" captionText="FIGURES 32–53. Afrocymbella nyassae sp. nov., LM valve views.All valves displayed from the type material (core sample MAL05-1C- 26E2, 17–18 cm, ~135.5 ka). Fig. 39. Holotype specimen. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.6951993" httpUri="https://zenodo.org/record/6951993/files/figure.png" pageId="4" pageNumber="25">Figs 32–53</figureCitation>
|
||
). Internally, valve apices bear small to indistinguishable pseudosepta (
|
||
<figureCitation id="133E2A7A455AFFA6FAAEFAA4FACA0F78" box="[1294,1380,1377,1404]" captionStart="FIGURES 57–59" captionStartId="10.[136,243,1675,1697]" captionTargetBox="[151,1435,190,1651]" captionTargetId="figure-30@10.[151,1435,190,1651]" captionTargetPageId="10" captionText="FIGURES 57–59. Afrocymbella nyassae sp. nov., SEM internal valve views. 57. View of the whole valve showing raphe structure and areolae without velum. 58. Detail of mid-valve of a broken valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 59. Close view of valve apices showing APF with knobby jointed ridge of silica (white arrow) and distal raphe fissures slightly raised into small helictoglossae. Scale bars = 5 μm (Figs 57–58), 2 μm (Fig. 59)." figureDoi="http://doi.org/10.5281/zenodo.6951997" httpUri="https://zenodo.org/record/6951997/files/figure.png" pageId="4" pageNumber="25">Fig. 59</figureCitation>
|
||
). APF of round poroids present at footpole (
|
||
<figureCitation id="133E2A7A455AFFA6FD8AFA40FDD00FA4" box="[554,638,1413,1440]" captionStart="FIGURES 54–56" captionStartId="9.[136,243,1623,1645]" captionTargetBox="[151,1435,190,1599]" captionTargetId="figure-18@9.[151,1435,190,1599]" captionTargetPageId="9" captionText="FIGURES 54–56. Afrocymbella nyassae sp. nov., SEM external valve views. 54. Half-valve showing uniseriate striae and single stigmoid positioned distally from the round, slightly asymmetric central area. 55. View of the whole valve showing raphe structure and striae continuing onto valve mantle. 56. Close view of distal raphe terminal fissure andAPF of round poroids. Scale bars = 5 μm (Fig. 54), 2 μm (Fig. 55), 1 μm (Fig. 56)." figureDoi="http://doi.org/10.5281/zenodo.6951995" httpUri="https://zenodo.org/record/6951995/files/figure.png" pageId="4" pageNumber="25">Fig. 56</figureCitation>
|
||
), surrounded internally by knobby jointed ridge of silica (white arrow in
|
||
<figureCitation id="133E2A7A455AFFA6FF28FA6CFF720FC0" box="[136,220,1449,1476]" captionStart="FIGURES 57–59" captionStartId="10.[136,243,1675,1697]" captionTargetBox="[151,1435,190,1651]" captionTargetId="figure-30@10.[151,1435,190,1651]" captionTargetPageId="10" captionText="FIGURES 57–59. Afrocymbella nyassae sp. nov., SEM internal valve views. 57. View of the whole valve showing raphe structure and areolae without velum. 58. Detail of mid-valve of a broken valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 59. Close view of valve apices showing APF with knobby jointed ridge of silica (white arrow) and distal raphe fissures slightly raised into small helictoglossae. Scale bars = 5 μm (Figs 57–58), 2 μm (Fig. 59)." figureDoi="http://doi.org/10.5281/zenodo.6951997" httpUri="https://zenodo.org/record/6951997/files/figure.png" pageId="4" pageNumber="25">Fig. 59</figureCitation>
|
||
). Axial area narrow, dorsal margin slightly curved (
|
||
<figureCitation id="133E2A7A455AFFA6FC82FA6CFC0B0FC0" box="[802,933,1449,1476]" captionStart="FIGURES 32–53" captionStartId="8.[136,243,1408,1430]" captionTargetBox="[151,1436,190,1383]" captionTargetId="figure-30@8.[151,1436,190,1383]" captionTargetPageId="8" captionText="FIGURES 32–53. Afrocymbella nyassae sp. nov., LM valve views.All valves displayed from the type material (core sample MAL05-1C- 26E2, 17–18 cm, ~135.5 ka). Fig. 39. Holotype specimen. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.6951993" httpUri="https://zenodo.org/record/6951993/files/figure.png" pageId="4" pageNumber="25">Figs 32–53</figureCitation>
|
||
,
|
||
<figureCitation id="133E2A7A455AFFA6FC11FA6CFC7F0FC0" box="[945,977,1449,1476]" captionStart="FIGURES 54–56" captionStartId="9.[136,243,1623,1645]" captionTargetBox="[151,1435,190,1599]" captionTargetId="figure-18@9.[151,1435,190,1599]" captionTargetPageId="9" captionText="FIGURES 54–56. Afrocymbella nyassae sp. nov., SEM external valve views. 54. Half-valve showing uniseriate striae and single stigmoid positioned distally from the round, slightly asymmetric central area. 55. View of the whole valve showing raphe structure and striae continuing onto valve mantle. 56. Close view of distal raphe terminal fissure andAPF of round poroids. Scale bars = 5 μm (Fig. 54), 2 μm (Fig. 55), 1 μm (Fig. 56)." figureDoi="http://doi.org/10.5281/zenodo.6951995" httpUri="https://zenodo.org/record/6951995/files/figure.png" pageId="4" pageNumber="25">55</figureCitation>
|
||
). Central area round, slightly asymmetric, wider on dorsal side (
|
||
<figureCitation id="133E2A7A455AFFA6FEDCFA08FE500FEC" box="[380,510,1485,1512]" captionStart="FIGURES 32–53" captionStartId="8.[136,243,1408,1430]" captionTargetBox="[151,1436,190,1383]" captionTargetId="figure-30@8.[151,1436,190,1383]" captionTargetPageId="8" captionText="FIGURES 32–53. Afrocymbella nyassae sp. nov., LM valve views.All valves displayed from the type material (core sample MAL05-1C- 26E2, 17–18 cm, ~135.5 ka). Fig. 39. Holotype specimen. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.6951993" httpUri="https://zenodo.org/record/6951993/files/figure.png" pageId="4" pageNumber="25">Figs 32–53</figureCitation>
|
||
,
|
||
<figureCitation id="133E2A7A455AFFA6FDAAFA08FD840FEC" box="[522,554,1485,1512]" captionStart="FIGURES 54–56" captionStartId="9.[136,243,1623,1645]" captionTargetBox="[151,1435,190,1599]" captionTargetId="figure-18@9.[151,1435,190,1599]" captionTargetPageId="9" captionText="FIGURES 54–56. Afrocymbella nyassae sp. nov., SEM external valve views. 54. Half-valve showing uniseriate striae and single stigmoid positioned distally from the round, slightly asymmetric central area. 55. View of the whole valve showing raphe structure and striae continuing onto valve mantle. 56. Close view of distal raphe terminal fissure andAPF of round poroids. Scale bars = 5 μm (Fig. 54), 2 μm (Fig. 55), 1 μm (Fig. 56)." figureDoi="http://doi.org/10.5281/zenodo.6951995" httpUri="https://zenodo.org/record/6951995/files/figure.png" pageId="4" pageNumber="25">54</figureCitation>
|
||
). Single stigmoid present on dorsal side of central nodule, externally circular to transapically elongated (
|
||
<figureCitation id="133E2A7A455AFFA6FE38FA34FDB90C08" box="[408,535,1521,1548]" captionStart="FIGURES 54–56" captionStartId="9.[136,243,1623,1645]" captionTargetBox="[151,1435,190,1599]" captionTargetId="figure-18@9.[151,1435,190,1599]" captionTargetPageId="9" captionText="FIGURES 54–56. Afrocymbella nyassae sp. nov., SEM external valve views. 54. Half-valve showing uniseriate striae and single stigmoid positioned distally from the round, slightly asymmetric central area. 55. View of the whole valve showing raphe structure and striae continuing onto valve mantle. 56. Close view of distal raphe terminal fissure andAPF of round poroids. Scale bars = 5 μm (Fig. 54), 2 μm (Fig. 55), 1 μm (Fig. 56)." figureDoi="http://doi.org/10.5281/zenodo.6951995" httpUri="https://zenodo.org/record/6951995/files/figure.png" pageId="4" pageNumber="25">Figs 54, 55</figureCitation>
|
||
), internally elongated slit (
|
||
<figureCitation id="133E2A7A455AFFA6FC9FFA34FC6E0C08" box="[831,960,1521,1548]" captionStart="FIGURES 57–59" captionStartId="10.[136,243,1675,1697]" captionTargetBox="[151,1435,190,1651]" captionTargetId="figure-30@10.[151,1435,190,1651]" captionTargetPageId="10" captionText="FIGURES 57–59. Afrocymbella nyassae sp. nov., SEM internal valve views. 57. View of the whole valve showing raphe structure and areolae without velum. 58. Detail of mid-valve of a broken valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 59. Close view of valve apices showing APF with knobby jointed ridge of silica (white arrow) and distal raphe fissures slightly raised into small helictoglossae. Scale bars = 5 μm (Figs 57–58), 2 μm (Fig. 59)." figureDoi="http://doi.org/10.5281/zenodo.6951997" httpUri="https://zenodo.org/record/6951997/files/figure.png" pageId="4" pageNumber="25">Figs 57, 58</figureCitation>
|
||
). Raphe curved and slightly sinusoidal (
|
||
<figureCitation id="133E2A7A455AFFA6FADAFA34FF7F0C34" captionStart="FIGURES 54–56" captionStartId="9.[136,243,1623,1645]" captionTargetBox="[151,1435,190,1599]" captionTargetId="figure-18@9.[151,1435,190,1599]" captionTargetPageId="9" captionText="FIGURES 54–56. Afrocymbella nyassae sp. nov., SEM external valve views. 54. Half-valve showing uniseriate striae and single stigmoid positioned distally from the round, slightly asymmetric central area. 55. View of the whole valve showing raphe structure and striae continuing onto valve mantle. 56. Close view of distal raphe terminal fissure andAPF of round poroids. Scale bars = 5 μm (Fig. 54), 2 μm (Fig. 55), 1 μm (Fig. 56)." figureDoi="http://doi.org/10.5281/zenodo.6951995" httpUri="https://zenodo.org/record/6951995/files/figure.png" pageId="4" pageNumber="25">Figs 54, 55</figureCitation>
|
||
). External proximal raphe ends expanded into small pores dorsally deflected (
|
||
<figureCitation id="133E2A7A455AFFA6FB8DF9D0FB020C34" box="[1069,1196,1557,1584]" captionStart="FIGURES 54–56" captionStartId="9.[136,243,1623,1645]" captionTargetBox="[151,1435,190,1599]" captionTargetId="figure-18@9.[151,1435,190,1599]" captionTargetPageId="9" captionText="FIGURES 54–56. Afrocymbella nyassae sp. nov., SEM external valve views. 54. Half-valve showing uniseriate striae and single stigmoid positioned distally from the round, slightly asymmetric central area. 55. View of the whole valve showing raphe structure and striae continuing onto valve mantle. 56. Close view of distal raphe terminal fissure andAPF of round poroids. Scale bars = 5 μm (Fig. 54), 2 μm (Fig. 55), 1 μm (Fig. 56)." figureDoi="http://doi.org/10.5281/zenodo.6951995" httpUri="https://zenodo.org/record/6951995/files/figure.png" pageId="4" pageNumber="25">Figs 54, 55</figureCitation>
|
||
), internally covered by nodular or flap-like silica development (
|
||
<figureCitation id="133E2A7A455AFFA6FDEEF9FCFD7C0C50" box="[590,722,1593,1620]" captionStart="FIGURES 57–59" captionStartId="10.[136,243,1675,1697]" captionTargetBox="[151,1435,190,1651]" captionTargetId="figure-30@10.[151,1435,190,1651]" captionTargetPageId="10" captionText="FIGURES 57–59. Afrocymbella nyassae sp. nov., SEM internal valve views. 57. View of the whole valve showing raphe structure and areolae without velum. 58. Detail of mid-valve of a broken valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 59. Close view of valve apices showing APF with knobby jointed ridge of silica (white arrow) and distal raphe fissures slightly raised into small helictoglossae. Scale bars = 5 μm (Figs 57–58), 2 μm (Fig. 59)." figureDoi="http://doi.org/10.5281/zenodo.6951997" httpUri="https://zenodo.org/record/6951997/files/figure.png" pageId="4" pageNumber="25">Figs 57, 58</figureCitation>
|
||
). External distal raphe terminal fissures ventrally deflected (
|
||
<figureCitation id="133E2A7A455AFFA6FADAF9FCFF7D0C7C" captionStart="FIGURES 54–56" captionStartId="9.[136,243,1623,1645]" captionTargetBox="[151,1435,190,1599]" captionTargetId="figure-18@9.[151,1435,190,1599]" captionTargetPageId="9" captionText="FIGURES 54–56. Afrocymbella nyassae sp. nov., SEM external valve views. 54. Half-valve showing uniseriate striae and single stigmoid positioned distally from the round, slightly asymmetric central area. 55. View of the whole valve showing raphe structure and striae continuing onto valve mantle. 56. Close view of distal raphe terminal fissure andAPF of round poroids. Scale bars = 5 μm (Fig. 54), 2 μm (Fig. 55), 1 μm (Fig. 56)." figureDoi="http://doi.org/10.5281/zenodo.6951995" httpUri="https://zenodo.org/record/6951995/files/figure.png" pageId="4" pageNumber="25">Figs 55, 56</figureCitation>
|
||
), internally slightly elevated into small lobed helictoglossa at some distance from valve apices (
|
||
<figureCitation id="133E2A7A455AFFA6FAB9F998FA310C7C" box="[1305,1439,1629,1656]" captionStart="FIGURES 57–59" captionStartId="10.[136,243,1675,1697]" captionTargetBox="[151,1435,190,1651]" captionTargetId="figure-30@10.[151,1435,190,1651]" captionTargetPageId="10" captionText="FIGURES 57–59. Afrocymbella nyassae sp. nov., SEM internal valve views. 57. View of the whole valve showing raphe structure and areolae without velum. 58. Detail of mid-valve of a broken valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 59. Close view of valve apices showing APF with knobby jointed ridge of silica (white arrow) and distal raphe fissures slightly raised into small helictoglossae. Scale bars = 5 μm (Figs 57–58), 2 μm (Fig. 59)." figureDoi="http://doi.org/10.5281/zenodo.6951997" httpUri="https://zenodo.org/record/6951997/files/figure.png" pageId="4" pageNumber="25">Figs 57, 59</figureCitation>
|
||
). Striae radiate throughout, uninterruptedly continuing onto valve mantle (
|
||
<figureCitation id="133E2A7A455AFFA6FC17F944FBA50C98" box="[951,1035,1665,1692]" captionStart="FIGURES 54–56" captionStartId="9.[136,243,1623,1645]" captionTargetBox="[151,1435,190,1599]" captionTargetId="figure-18@9.[151,1435,190,1599]" captionTargetPageId="9" captionText="FIGURES 54–56. Afrocymbella nyassae sp. nov., SEM external valve views. 54. Half-valve showing uniseriate striae and single stigmoid positioned distally from the round, slightly asymmetric central area. 55. View of the whole valve showing raphe structure and striae continuing onto valve mantle. 56. Close view of distal raphe terminal fissure andAPF of round poroids. Scale bars = 5 μm (Fig. 54), 2 μm (Fig. 55), 1 μm (Fig. 56)." figureDoi="http://doi.org/10.5281/zenodo.6951995" httpUri="https://zenodo.org/record/6951995/files/figure.png" pageId="4" pageNumber="25">Fig. 55</figureCitation>
|
||
),
|
||
<quantity id="4CFD9B1A455AFFA6FBBFF944FB2C0C9F" box="[1055,1154,1665,1691]" metricMagnitude="-1" metricUnit="m" metricValue="3.81" metricValueMax="4.064" metricValueMin="3.556" pageId="4" pageNumber="25" unit="in" value="15.0" valueMax="16.0" valueMin="14.0">14–16 in</quantity>
|
||
10 μm at middle;
|
||
<quantity id="4CFD9B1A455AFFA6FAEFF947FA270C9F" box="[1359,1417,1665,1692]" metricMagnitude="-1" metricUnit="m" metricValue="4.572" pageId="4" pageNumber="25" unit="in" value="18.0">18 in</quantity>
|
||
10 μm at valve apices. Striae composed of 30–35 lineate to slit-like areolae in 10 μm, internally ellipsoid without velum (
|
||
<figureCitation id="133E2A7A455AFFA6FF30F90CFF4B0CE0" box="[144,229,1737,1764]" captionStart="FIGURES 57–59" captionStartId="10.[136,243,1675,1697]" captionTargetBox="[151,1435,190,1651]" captionTargetId="figure-30@10.[151,1435,190,1651]" captionTargetPageId="10" captionText="FIGURES 57–59. Afrocymbella nyassae sp. nov., SEM internal valve views. 57. View of the whole valve showing raphe structure and areolae without velum. 58. Detail of mid-valve of a broken valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 59. Close view of valve apices showing APF with knobby jointed ridge of silica (white arrow) and distal raphe fissures slightly raised into small helictoglossae. Scale bars = 5 μm (Figs 57–58), 2 μm (Fig. 59)." figureDoi="http://doi.org/10.5281/zenodo.6951997" httpUri="https://zenodo.org/record/6951997/files/figure.png" pageId="4" pageNumber="25">Fig. 57</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C31F6574455AFFA6FF1DF92BFB4A0D9C" pageId="4" pageNumber="25" type="materials_examined">
|
||
<paragraph id="8BBA36FF455AFFA6FF1DF92BFC270D77" blockId="4.[136,1452,1269,2088]" pageId="4" pageNumber="25">
|
||
<emphasis id="B971EAED455AFFA6FF1DF92BFEB00D0C" bold="true" box="[189,286,1774,1800]" pageId="4" pageNumber="25">Type:—</emphasis>
|
||
<materialsCitation id="3B6D3CA2455AFFA6FEBDF92BFC270D77" ID-GBIF-Occurrence="3874591303" collectingDate="2006-05-22" collectionCode="R" country="Malawi" county="Drive" elevation="83" latitude="-11.294333" location="Lake Malawi" longLatPrecision="1" longitude="34.435833" municipality="Core" pageId="4" pageNumber="25" specimenCode="MAL05-1, ANSGC17195" specimenCount="1" typeStatus="holotype">
|
||
<collectingCountry id="F312766F455AFFA6FEBDF92BFDFD0D0C" box="[285,595,1774,1800]" name="Malawi" pageId="4" pageNumber="25">REPUBLIC OF MALAWI</collectingCountry>
|
||
.
|
||
<location id="8EDA6024455AFFA6FDC0F928FD590D03" LSID="urn:lsid:plazi:treatment:03AC87E9455AFFA6FF28FB71FD9B0223:8EDA6024455AFFA6FDC0F928FD590D03" box="[608,759,1773,1799]" country="Malawi" county="Drive" latitude="-11.294333" longLatPrecision="1" longitude="34.435833" municipality="Core" name="Lake Malawi" pageId="4" pageNumber="25">Lake Malawi</location>
|
||
central basin,
|
||
<collectingMunicipality id="6BDEAC85455AFFA6FC02F92BFC760D0C" box="[930,984,1774,1800]" pageId="4" pageNumber="25">Core</collectingMunicipality>
|
||
<specimenCode id="DBA39E84455AFFA6FC41F928FBFB0D0C" box="[993,1109,1773,1800]" collectionCode="MAL" country="Malawi" httpUri="http://biocol.org/urn:lsid:biocol.org:col:12700" lsid="urn:lsid:biocol.org:col:12700" name="Botanic Gardens of Malawi" pageId="4" pageNumber="25" type="Herbarium">MAL05-1</specimenCode>
|
||
C,
|
||
<collectingCounty id="62DB4E73455AFFA6FBD6F928FB180D03" box="[1142,1206,1773,1799]" pageId="4" pageNumber="25">Drive</collectingCounty>
|
||
26E2; mud, sampled at
|
||
<quantity id="4CFD9B1A455AFFA6FF06F8D7FEB30D28" box="[166,285,1810,1836]" metricMagnitude="-1" metricUnit="m" metricValue="1.75" metricValueMax="1.8" metricValueMin="1.7" pageId="4" pageNumber="25" unit="cm" value="17.5" valueMax="18.0" valueMin="17.0">17–18 cm</quantity>
|
||
; composite
|
||
<elevation id="0028D1CC455AFFA6FE08F8D7FD820D2F" box="[424,556,1809,1836]" metricMagnitude="1" metricUnit="m" metricValue="8.3" pageId="4" pageNumber="25" unit="m" value="83.0">
|
||
<quantity id="4CFD9B1A455AFFA6FE08F8D7FE4A0D28" box="[424,484,1810,1836]" metricMagnitude="1" metricUnit="m" metricValue="8.3" pageId="4" pageNumber="25" unit="m" value="83.0">83 m</quantity>
|
||
depth
|
||
</elevation>
|
||
(corresponding to ~135.5 ka),
|
||
<geoCoordinate id="EE315038455AFFA6FC37F8D4FB940D28" box="[919,1082,1809,1836]" degrees="11" direction="south" minutes="17" orientation="latitude" pageId="4" pageNumber="25" precision="1" seconds="39.6" value="-11.294333">11°17’39.6” S</geoCoordinate>
|
||
<geoCoordinate id="EE315038455AFFA6FBE4F8D4FB450D28" box="[1092,1259,1809,1836]" degrees="34" direction="east" minutes="26" orientation="longitude" pageId="4" pageNumber="25" precision="1" seconds="09.0" value="34.435833">34°26’09.0” E</geoCoordinate>
|
||
,
|
||
<emphasis id="B971EAED455AFFA6FB5AF8D7FF540D4B" italics="true" pageId="4" pageNumber="25">
|
||
J.
|
||
<collectionCode id="ED14AE3A455AFFA6FAAEF8D7FA8C0D2F" box="[1294,1314,1810,1835]" country="Chile" name="Departamento de Geologia, Universidad de Chile" pageId="4" pageNumber="25">R</collectionCode>
|
||
. Stone,
|
||
<date id="FFBB103F455AFFA6FADFF8D7FA350D28" box="[1407,1435,1810,1836]" pageId="4" pageNumber="25" value="2006-05-22">
|
||
<collectingDate id="EFFFE9D7455AFFA6FADFF8D7FA350D28" box="[1407,1435,1810,1836]" pageId="4" pageNumber="25" value="2006-05-22">22</collectingDate>
|
||
</date>
|
||
<superScript id="7C709BB7455AFFA6FA3BF8D4FA050D1B" attach="none" box="[1435,1451,1809,1823]" fontSize="6" pageId="4" pageNumber="25">nd</superScript>
|
||
May 2006
|
||
</emphasis>
|
||
(
|
||
<typeStatus id="54BE885D455AFFA6FEAAF8F0FEC00D4B" box="[266,366,1845,1871]" pageId="4" pageNumber="25" type="holotype">holotype</typeStatus>
|
||
designated here, circled specimen ANS-GC17194! =
|
||
<figureCitation id="133E2A7A455AFFA6FC75F8F0FB860D54" box="[981,1064,1845,1872]" captionStart="FIGURES 32–53" captionStartId="8.[136,243,1408,1430]" captionTargetBox="[151,1436,190,1383]" captionTargetId="figure-30@8.[151,1436,190,1383]" captionTargetPageId="8" captionText="FIGURES 32–53. Afrocymbella nyassae sp. nov., LM valve views.All valves displayed from the type material (core sample MAL05-1C- 26E2, 17–18 cm, ~135.5 ka). Fig. 39. Holotype specimen. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.6951993" httpUri="https://zenodo.org/record/6951993/files/figure.png" pageId="4" pageNumber="25">Fig. 39</figureCitation>
|
||
, isotypes circled specimens
|
||
<specimenCode id="DBA39E84455AFFA6FACAF8F3FF500D70" collectionCode="ANSGC" pageId="4" pageNumber="25">ANSGC17195</specimenCode>
|
||
!, BM-101978! Cleaned type materials: ANS-GCM 33026.
|
||
</materialsCitation>
|
||
</paragraph>
|
||
<paragraph id="8BBA36FF455AFFA6FF1DF8B8FB4A0D9C" blockId="4.[136,1452,1269,2088]" box="[189,1252,1917,1944]" pageId="4" pageNumber="25">Registration: https://zoobank.org/NomenclaturalActs/13f4f4e3-74e6-41ba-bd38-a84665cfacd3</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C31F6574455AFFA6FF1DF867FA940DB8" box="[189,1338,1953,1980]" pageId="4" pageNumber="25" type="etymology">
|
||
<paragraph id="8BBA36FF455AFFA6FF1DF867FA940DB8" blockId="4.[136,1452,1269,2088]" box="[189,1338,1953,1980]" pageId="4" pageNumber="25">
|
||
<emphasis id="B971EAED455AFFA6FF1DF867FECA0DB8" bold="true" box="[189,356,1954,1980]" pageId="4" pageNumber="25">Etymology:—</emphasis>
|
||
The species name ‘
|
||
<taxonomicName id="4C054D7C455AFFA6FD9BF867FD3A0DBF" authorityName="Stone & Wilson & Jovanovska" authorityYear="2022" box="[571,660,1954,1979]" class="Bacillariophyceae" family="Cymbellaceae" genus="Afrocymbella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Cymbellales" pageId="4" pageNumber="25" phylum="Ochrophyta" rank="species" species="nyassae">
|
||
<emphasis id="B971EAED455AFFA6FD9BF867FD3A0DBF" box="[571,660,1954,1979]" italics="true" pageId="4" pageNumber="25">nyassae</emphasis>
|
||
</taxonomicName>
|
||
’ refers to the
|
||
<typeStatus id="54BE885D455AFFA6FC8FF867FCF10DB8" box="[815,863,1954,1980]" pageId="4" pageNumber="25">type</typeStatus>
|
||
locality, Lake
|
||
<collectingCountry id="F312766F455AFFA6FBA5F864FBF50DBF" box="[1029,1115,1953,1979]" name="Malawi" pageId="4" pageNumber="25">Malawi</collectingCountry>
|
||
(aka Lake Nyassa).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C31F6574455AFFA6FF1DF800FD9B0223" pageId="4" pageNumber="25" type="distribution">
|
||
<paragraph id="8BBA36FF455AFFA6FF1DF800FD9B0223" blockId="4.[136,1452,1269,2088]" pageId="4" pageNumber="25">
|
||
<emphasis id="B971EAED455AFFA6FF1DF800FEDB0DDB" bold="true" box="[189,373,1989,2015]" pageId="4" pageNumber="25">Distribution:—</emphasis>
|
||
To date,
|
||
<emphasis id="B971EAED455AFFA6FE7AF800FC9C0DDB" box="[474,818,1989,2015]" italics="true" pageId="4" pageNumber="25">
|
||
<taxonomicName id="4C054D7C455AFFA6FE7AF800FD7C0DDB" authority="Stone & Wilson & Jovanovska, 2022" authorityName="Stone & Wilson & Jovanovska" authorityYear="2022" box="[474,722,1989,2015]" class="Bacillariophyceae" family="Cymbellaceae" genus="Afrocymbella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Cymbellales" pageId="4" pageNumber="25" phylum="Ochrophyta" rank="species" species="nyassae" status="sp. nov.">Afrocymbella nyassae</taxonomicName>
|
||
<taxonomicNameLabel id="A2425796455AFFA6FD7BF803FC9C0DDB" box="[731,818,1990,2015]" pageId="4" pageNumber="25" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
has only been observed from sediment assemblages of Lake
|
||
<collectingCountry id="F312766F455AFFA6FF68F82CFEB00207" box="[200,286,2025,2051]" name="Malawi" pageId="4" pageNumber="25">Malawi</collectingCountry>
|
||
ranging from ~140 ka to 90 ka in the MAL05-1C drillcore (1C,
|
||
<figureCitation id="133E2A7A455AFFA6FBA3F82CFBEB0200" box="[1027,1093,2025,2052]" captionStart="FIGURE 1" captionStartId="2.[136,229,2013,2035]" captionTargetBox="[311,1276,350,1986]" captionTargetId="figure-119@2.[311,1276,350,1986]" captionTargetPageId="2" captionText="FIGURE 1. Map of the lakes Tanganyika and Malawi, showing the sampling locations of modern (red circles) and fossil (cores MAL05- 1C and NPO4-KH1-1K; white circles) specimens used in this study." figureDoi="http://doi.org/10.5281/zenodo.6951975" httpUri="https://zenodo.org/record/6951975/files/figure.png" pageId="4" pageNumber="25">Fig. 1</figureCitation>
|
||
). It is likely an extinct species, seemingly without extant populations.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |