529 lines
63 KiB
XML
529 lines
63 KiB
XML
<document id="5CE835E11B17EF56CE72F8F3428BC99F" ID-DOI="10.5281/zenodo.5375097" ID-ISSN="1638-9395" ID-Zenodo-Dep="5375097" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1630277509391" checkinUser="marcus" docAuthor="Karatajūtē-Talimaa, Valentina & Märss, Tiiu" docDate="2002" docId="AB0B878D0F63FFE68000F9E5B6D825DD" docLanguage="en" docName="Geodiversitas.2002.24.2.405-443.pdf" docOrigin="Geodiversitas 24 (2)" docStyle="DocumentStyle:EA833BFD04EE0E3F39962C07E351CEA5.3:Geodiversitas.2000-2008.journal_article.type1" docStyleId="EA833BFD04EE0E3F39962C07E351CEA5" docStyleName="Geodiversitas.2000-2008.journal_article.type1" docStyleVersion="3" docTitle="Thelodus visvaldi Karatajūtē-Talimaa & Märss 2002, n. sp." docType="treatment" docVersion="5" lastPageNumber="435" masterDocId="5732FFF50F7AFFF88351FFEDB201205D" masterDocTitle="Upper Silurian thelodonts from Severnaya Zemlya Archipelago (Russia)" masterLastPageNumber="443" masterPageNumber="405" pageNumber="430" updateTime="1699210831718" updateUser="plazi" zenodo-license-document="CC0-1.0" zenodo-license-figures="CC0-1.0">
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<mods:mods id="490B4FB3CCCD36247F85A622A73CCCA2" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="D3764352473014C18E6F3BC9B46DFAF6">
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<mods:title id="9272401BB987794B9EF1B19CDB9AE28E">Upper Silurian thelodonts from Severnaya Zemlya Archipelago (Russia)</mods:title>
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</mods:titleInfo>
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<mods:name id="14839C17B95421A9CF93362B88FA94EB" type="personal">
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<mods:role id="BE702E467D4384DB531F289774CDC154">
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<mods:roleTerm id="C20B871406C1C4C71D617FCD7C5416EF">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="17170BC0C13223C76A48C15CB03F9C03">Karatajūtē-Talimaa, Valentina</mods:namePart>
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<mods:affiliation id="5512E616351FDF77EFBB1A3F915D3227">Institute of Geology of Lithuania, S ˘ evc enkos 13, Vilnius LR 2600 (Lithuania) vtalimaa @ takas. lt</mods:affiliation>
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<mods:nameIdentifier id="A9DDEDC52CE240937BC16418E7D31120" type="email">vtalimaa@takas.lt</mods:nameIdentifier>
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</mods:name>
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<mods:name id="EE7D2D230F9625C999D2E1CB3C299CAC" type="personal">
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<mods:role id="0864673746574DE49B714675BCF19B7F">
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<mods:roleTerm id="5B0C115137222BBA09622A1546DE8036">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="0AD48692BFD21CA5141B6781587F26FC">Märss, Tiiu</mods:namePart>
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<mods:affiliation id="375AD81E231370921347FF75F60B252A">Institute of Geology, Tallinn Technical University, 7 Estonia Avenue, Tallinn 10143 (Estonia) marss @ gi. ee Thelodonts have been found in the Bol’shaya, Matusevich, Obryvistaya, Pod ” emnaya, Spokojnaya, Ushakov rivers and Cape October sections of October Revolution Island, and Komsomolets and Pioneer islands sections, Severnaya Zemlya Archipelago, Russia. Two new families, one new genus and six new species belonging to the orders Katoporida and Thelodontida are described from the Upper Silurian. Seven taxa are re-described. Scattered scales of Loganellia cuneata (Gross, 1947), Paralogania ex gr. martinssoni (Gross, 1967), Paralogania menneri n. sp., Valiukia flabellata n. gen., n. sp., Phlebolepis elegans Pander, 1856, Thelodus visvaldi n. sp., Thelodus matukhini n. sp., Thelodus ex gr. schmidti (Pander, 1856), Thelodus sp. indet. and Lanarkia? sp. are characteristic for the Ludlow part of the sequence (Ust-Spokojnaya Formation of October Revolution Island and its analogue on Pioneer and Komsomolets islands). Thelodus parvidens (?), Loganellia cuneata, Paralogania wilsoni n. sp., P. kachanovi n. sp., Paralogania sp. cf. P. borealis (Karatajūtē-Talimaa, 1978), Goniporus alatus (Gross, 1947) and Nikolivia elongata Karatajūtē-Talimaa, 1978 are distributed in the sections of Krasnaya Bukhta Formation on October Revolution Island and coeval strata of Pioneer Island (Pridoli). Thelodus visvaldi n. sp. is also present in Wenlock of Pioneer Island.</mods:affiliation>
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<mods:nameIdentifier id="20CD80E9084BD0D6857A04CBE4D78A1D" type="email">marss@gi.ee</mods:nameIdentifier>
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</mods:name>
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<mods:typeOfResource id="60F6704F86C339614A64C62A3178BB0A">text</mods:typeOfResource>
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<mods:titleInfo id="2197BD50D17E4BA79DDB3038B6615F4B">
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<mods:title id="AED2E0D08F87744011937AAB59D42A9C">Geodiversitas</mods:title>
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</mods:titleInfo>
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<mods:part id="C157BE1BBDA7D9183B9EC321982AC38B">
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<mods:date id="63F75E8B7A0E27199D357AFAB736495E">2002</mods:date>
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<mods:detail id="6D0D78A224032D8B7450665194861435" type="volume">
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<mods:number id="7EBE08AB4EFB96BA4A64121E486EC802">24</mods:number>
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</mods:detail>
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<mods:detail id="9DB6D2BB8843F0069D81B35700150077" type="issue">
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<mods:number id="AE64778080C6F50BB95EFDB1EE8BC3D5">2</mods:number>
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</mods:detail>
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<mods:start id="295D152C324E3F519C6A633EC0BE9D3A">405</mods:start>
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<mods:end id="8A93789DF360778E99B4617088B05844">443</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 id="50537FB8E640657ABCC3D24627EFCF85">journal article</mods:classification>
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<mods:identifier id="AB4B811C4DCBBC2D90E40EF20D601FA1" type="DOI">10.5281/zenodo.5375097</mods:identifier>
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<mods:identifier id="47B7E031193418084B4F07825C54B5BA" type="ISSN">1638-9395</mods:identifier>
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<mods:identifier id="C060E30E46AC8616C9A7FBF0A4EEC400" type="Zenodo-Dep">5375097</mods:identifier>
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</mods:mods>
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<treatment id="AB0B878D0F63FFE68000F9E5B6D825DD" LSID="urn:lsid:plazi:treatment:AB0B878D0F63FFE68000F9E5B6D825DD" httpUri="http://treatment.plazi.org/id/AB0B878D0F63FFE68000F9E5B6D825DD" lastPageId="30" lastPageNumber="435" pageId="25" pageNumber="430">
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<subSubSection id="6BB865100F63FFE18000F9E5B647261C" pageId="25" pageNumber="430" type="nomenclature">
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<paragraph id="231D369B0F63FFE18000F9E5B647261C" blockId="25.[849,1112,1544,1601]" pageId="25" pageNumber="430">
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<taxonomicName id="E4A24D180F63FFE18000F9E5B616267D" authority="Karatajūtē-Talimaa & Märss, 2002" authorityName="Karatajūtē-Talimaa & Märss" authorityYear="2002" box="[849,1047,1544,1568]" class="Pteraspidomorphi" family="Loganelliidae" genus="Thelodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phlebolepidiformes" pageId="25" pageNumber="430" phylum="Chordata" rank="species" species="visvaldi" status="sp. nov.">
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<emphasis id="11D6EA890F63FFE18000F9E5B616267D" bold="true" box="[849,1047,1544,1568]" italics="true" pageId="25" pageNumber="430">Thelodus visvaldi</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="0AE557F20F63FFE1874CF9E4B659267D" box="[1053,1112,1545,1568]" pageId="25" pageNumber="430" rank="species">n. sp.</taxonomicNameLabel>
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(
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||
<figureCitation id="BB992A1E0F63FFE1803AF9C5B1BC261C" box="[875,957,1576,1601]" captionStart="FIG" captionStartId="27.[151,162,1564,1581]" captionTargetBox="[195,1206,166,1495]" captionTargetId="figure-205@27.[195,1206,166,1495]" captionTargetPageId="27" captionText="FIG. 17. — Thelodus visvaldi n. sp.; A, head scale; B, D-I, K-O, trunk scales; C, fin scale?; J, scale of unknown position; A-D, F-J, M-O, scales in crown view; E, N, scales in oblique lateral view; K, scale in lateral view; L, scale in base view; A, Pi 7541; B, Pi 7556; C, Pi 7549; D, E, Pi 7544; F, Pi 7542; G, LIG 35-903, the scale is lost; H, LIG 35-904; I, Pi 7545; J, Pi 7559; K, LIG 35-905; L, LIG 35- 906; M, Pi 7553; N, Pi 7554; O, Pi 7555; A-F, I, J, M-O, MF 34-1, Cape October, October Revolution Island; G, H, K, L, 5m-1, Pioneer Island; Ludlow, Upper Silurian. Scale bars: A-C, F-K, M-O, 0.1 mm; D, E, L, 0.2 mm." figureDoi="http://doi.org/10.5281/zenodo.5375131" httpUri="https://zenodo.org/record/5375131/files/figure.png" pageId="25" pageNumber="430">Figs 17</figureCitation>
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;
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<figureCitation id="BB992A1E0F63FFE18099F9C4B1E5261C" box="[968,996,1577,1601]" captionStart="FIG" captionStartId="28.[151,162,1607,1624]" captionTargetBox="[228,1209,232,1490]" captionTargetId="figure-110@28.[214,1221,234,1499]" captionTargetPageId="28" captionText="FIG. 18. — Set of scales of Thelodus visvaldi n. sp.; A-G, head scales; H-T, trunk scales; A, B1, C-G, H1, I1, J-M1, N-T, scales in crown view; B2, scale in base view; H2, I2, M2, scales in lateral view; LIG 35-120-LIG 35-139; sample 5m, Pioneer Island, Ludlow, Upper Silurian. Scale bar: 0.3 mm." figureDoi="http://doi.org/10.5281/zenodo.5375133" httpUri="https://zenodo.org/record/5375133/files/figure.png" pageId="25" pageNumber="430">18</figureCitation>
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;
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<figureCitation id="BB992A1E0F63FFE180BEF9C4B608261C" box="[1007,1033,1577,1601]" captionStart="FIG" captionStartId="29.[151,162,1564,1581]" captionTargetBox="[159,1190,176,1523]" captionTargetId="figure-142@29.[152,1203,167,1536]" captionTargetPageId="29" captionText="FIG. 19. — Microstructure of the scales; A-D, Thelodus visvaldi n. sp.; E, F, Thelodus sp. indet.; A, Pi 7644; B, Pi 7645; C, Pi 7646; D, Pi 7647; E, Pi 6445; F, Pi 6365; A, C, sample 20568, Komsomolets Island, upper part of Ludlow; B, sample 2-3k; D, MF 11-1, Matusevich River, October Revolution Island, Ust-Spokojnaya Formation; E, F, sample 2055zh, Pioneer Island, upper part of Ludlow, Upper Silurian. Abbreviations: b, base; cr, crown; dt, dentine tubules; n, neck; pcv, pulp cavity; rcr, ridge on the crown. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5375135" httpUri="https://zenodo.org/record/5375135/files/figure.png" pageId="25" pageNumber="430">19</figureCitation>
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A-D)
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</paragraph>
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||
</subSubSection>
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<subSubSection id="6BB865100F63FFE6819BF9B3B3E420E3" lastPageId="30" lastPageNumber="435" pageId="25" pageNumber="430" type="description">
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||
<paragraph id="231D369B0F63FFE6819BF9B3B3E420E3" blockId="25.[714,1221,1630,1652]" lastBlockId="30.[151,684,168,734]" lastPageId="30" lastPageNumber="435" pageId="25" pageNumber="430">
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<taxonomicName id="E4A24D180F63FFE1819BF9B3B153262E" box="[714,850,1630,1652]" class="Pteraspidomorphi" family="Loganelliidae" genus="Thelodus" kingdom="Animalia" order="Phlebolepidiformes" pageId="25" pageNumber="430" phylum="Chordata" rank="species" species="undefined-1">
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<emphasis id="11D6EA890F63FFE1819BF9B3B123262E" box="[714,802,1630,1651]" italics="true" pageId="25" pageNumber="430">Thelodus</emphasis>
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sp. 1
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</taxonomicName>
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Märss & Karajūtē- Talimaa 2002: fig. 1.
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<typeStatus id="FC1988390F64FFE683C6FF45B30420E0" box="[151,261,168,189]" pageId="30" pageNumber="435" type="holotype">HOLOTYPE</typeStatus>
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||
. — Pi 7542 (
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||
<figureCitation id="BB992A1E0F64FFE682D5FF45B3DB20E3" box="[388,474,168,190]" captionStart="FIG" captionStartId="27.[151,162,1564,1581]" captionTargetBox="[195,1206,166,1495]" captionTargetId="figure-205@27.[195,1206,166,1495]" captionTargetPageId="27" captionText="FIG. 17. — Thelodus visvaldi n. sp.; A, head scale; B, D-I, K-O, trunk scales; C, fin scale?; J, scale of unknown position; A-D, F-J, M-O, scales in crown view; E, N, scales in oblique lateral view; K, scale in lateral view; L, scale in base view; A, Pi 7541; B, Pi 7556; C, Pi 7549; D, E, Pi 7544; F, Pi 7542; G, LIG 35-903, the scale is lost; H, LIG 35-904; I, Pi 7545; J, Pi 7559; K, LIG 35-905; L, LIG 35- 906; M, Pi 7553; N, Pi 7554; O, Pi 7555; A-F, I, J, M-O, MF 34-1, Cape October, October Revolution Island; G, H, K, L, 5m-1, Pioneer Island; Ludlow, Upper Silurian. Scale bars: A-C, F-K, M-O, 0.1 mm; D, E, L, 0.2 mm." figureDoi="http://doi.org/10.5281/zenodo.5375131" httpUri="https://zenodo.org/record/5375131/files/figure.png" pageId="30" pageNumber="435">Fig. 17F</figureCitation>
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).
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</paragraph>
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||
</subSubSection>
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||
<caption id="77DD66130F60FFE283C6F9AAB69926DF" ID-DOI="http://doi.org/10.5281/zenodo.5375129" ID-Zenodo-Dep="5375129" httpUri="https://zenodo.org/record/5375129/files/figure.png" pageId="26" pageNumber="431" startId="26.[151,162,1607,1624]" targetBox="[163,1206,180,1520]" targetPageId="26">
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||
<paragraph id="231D369B0F60FFE283C6F9AAB69926DF" blockId="26.[151,1249,1607,1666]" pageId="26" pageNumber="431">
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FIG. 16. —
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<taxonomicName id="E4A24D180F60FFE283A4F9AAB3FD2605" authority="(Gross, 1947)" baseAuthorityName="Gross" baseAuthorityYear="1947" box="[245,508,1607,1624]" class="Pteraspidomorphi" family="Katoporodidae" genus="Goniporus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phlebolepidiformes" pageId="26" pageNumber="431" phylum="Chordata" rank="species" species="alatus">
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<emphasis id="11D6EA890F60FFE283A4F9AAB3822605" box="[245,387,1607,1624]" italics="true" pageId="26" pageNumber="431">Goniporus alatus</emphasis>
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||
(
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<bibRefCitation id="47334B6A0F60FFE282DCF9AAB3F92605" author="GROSS W." box="[397,504,1607,1624]" pageId="26" pageNumber="431" pagination="91 - 161" refId="ref17271" refString="GROSS W. 1947. - Die Agnathen und Acanthodier der Obersilurischen Beyrichienkalks. Palaeontographica A 96: 91 - 161." type="journal article" year="1947">Gross, 1947</bibRefCitation>
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||
)
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||
</taxonomicName>
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||
, morphological set of scales;
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<emphasis id="11D6EA890F60FFE281A9F9AAB1042605" bold="true" box="[760,773,1607,1624]" pageId="26" pageNumber="431">A</emphasis>
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||
, head scale;
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<emphasis id="11D6EA890F60FFE28026F9AAB19B2605" bold="true" box="[887,922,1607,1624]" pageId="26" pageNumber="431">B -D</emphasis>
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, transitional scales;
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<emphasis id="11D6EA890F60FFE28716F9AAB6682605" bold="true" box="[1095,1129,1607,1624]" pageId="26" pageNumber="431">E -Q</emphasis>
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||
, trunk scales;
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<emphasis id="11D6EA890F60FFE283C6F9B1B2C0262E" bold="true" box="[151,193,1628,1651]" pageId="26" pageNumber="431">
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||
A -G
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<subScript id="BF2634DE0F60FFE283E8F98BB2C0262E" attach="left" box="[185,193,1638,1651]" fontSize="5" pageId="26" pageNumber="431">1</subScript>
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||
</emphasis>
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||
,
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||
<emphasis id="11D6EA890F60FFE2839AF9B1B2D82630" bold="true" box="[203,217,1628,1645]" pageId="26" pageNumber="431">H</emphasis>
|
||
,
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||
<emphasis id="11D6EA890F60FFE283B2F9B1B2F0262E" bold="true" box="[227,241,1628,1651]" pageId="26" pageNumber="431">
|
||
I
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<subScript id="BF2634DE0F60FFE283B8F98BB2F0262E" attach="left" box="[233,241,1638,1651]" fontSize="5" pageId="26" pageNumber="431">1</subScript>
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</emphasis>
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,
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<emphasis id="11D6EA890F60FFE283AAF9B1B321262E" bold="true" box="[251,288,1628,1651]" pageId="26" pageNumber="431">
|
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J -L
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<subScript id="BF2634DE0F60FFE28249F98BB321262E" attach="left" box="[280,288,1638,1651]" fontSize="5" pageId="26" pageNumber="431">1</subScript>
|
||
</emphasis>
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||
,
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<emphasis id="11D6EA890F60FFE2827BF9B1B342262E" bold="true" box="[298,323,1628,1651]" pageId="26" pageNumber="431">
|
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M
|
||
<subScript id="BF2634DE0F60FFE2826AF98BB342262E" attach="left" box="[315,323,1638,1651]" fontSize="5" pageId="26" pageNumber="431">1</subScript>
|
||
</emphasis>
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||
,
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<emphasis id="11D6EA890F60FFE2821CF9B1B35A2630" bold="true" box="[333,347,1628,1645]" pageId="26" pageNumber="431">N</emphasis>
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||
,
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||
<emphasis id="11D6EA890F60FFE28234F9B1B37A262E" bold="true" box="[357,379,1628,1651]" pageId="26" pageNumber="431">
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O
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<subScript id="BF2634DE0F60FFE28222F98BB37A262E" attach="left" box="[371,379,1638,1651]" fontSize="5" pageId="26" pageNumber="431">1</subScript>
|
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</emphasis>
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,
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||
<emphasis id="11D6EA890F60FFE282D7F9B1B39B262E" bold="true" box="[390,410,1628,1651]" pageId="26" pageNumber="431">
|
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P
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<subScript id="BF2634DE0F60FFE282C3F98BB39B262E" attach="left" box="[402,410,1638,1651]" fontSize="5" pageId="26" pageNumber="431">1</subScript>
|
||
</emphasis>
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||
,
|
||
<emphasis id="11D6EA890F60FFE282F5F9B1B3B22630" bold="true" box="[420,435,1628,1645]" pageId="26" pageNumber="431">Q</emphasis>
|
||
, scales in crown view;
|
||
<emphasis id="11D6EA890F60FFE28122F9B1B088262E" bold="true" box="[627,649,1628,1651]" pageId="26" pageNumber="431">
|
||
G
|
||
<subScript id="BF2634DE0F60FFE281D0F98BB088262E" attach="left" box="[641,649,1638,1651]" fontSize="5" pageId="26" pageNumber="431">2</subScript>
|
||
</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F60FFE281C2F9B1B0A0262E" bold="true" box="[659,673,1628,1651]" pageId="26" pageNumber="431">
|
||
I
|
||
<subScript id="BF2634DE0F60FFE281C8F98BB0A0262E" attach="left" box="[665,673,1638,1651]" fontSize="5" pageId="26" pageNumber="431">2</subScript>
|
||
</emphasis>
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||
,
|
||
<emphasis id="11D6EA890F60FFE281FAF9B1B0BF262E" bold="true" box="[683,702,1628,1651]" pageId="26" pageNumber="431">
|
||
L
|
||
<subScript id="BF2634DE0F60FFE281E7F98BB0BF262E" attach="left" box="[694,702,1638,1651]" fontSize="5" pageId="26" pageNumber="431">2</subScript>
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||
</emphasis>
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||
,
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||
<emphasis id="11D6EA890F60FFE28199F9B1B0E0262E" bold="true" box="[712,737,1628,1651]" pageId="26" pageNumber="431">
|
||
M
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||
<subScript id="BF2634DE0F60FFE28188F98BB0E0262E" attach="left" box="[729,737,1638,1651]" fontSize="5" pageId="26" pageNumber="431">2</subScript>
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</emphasis>
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||
,
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||
<emphasis id="11D6EA890F60FFE281BAF9B1B103262E" bold="true" box="[747,770,1628,1651]" pageId="26" pageNumber="431">
|
||
O
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||
<subScript id="BF2634DE0F60FFE281ABF98BB103262E" attach="left" box="[762,770,1638,1651]" fontSize="5" pageId="26" pageNumber="431">2</subScript>
|
||
</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F60FFE2805DF9B1B121262E" bold="true" box="[780,800,1628,1651]" pageId="26" pageNumber="431">
|
||
P
|
||
<subScript id="BF2634DE0F60FFE28049F98BB121262E" attach="left" box="[792,800,1638,1651]" fontSize="5" pageId="26" pageNumber="431">2</subScript>
|
||
</emphasis>
|
||
, scales in base view. LIG 35-236-LIG 35-252; sample 41-1, Spokojnaya River, October Revolution Island, Krasnaya Bukhta Formation, Pridoli, Upper Silurian. Scale bar: 0.3 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="77DD66130F61FFE383C6F9F1B19926DF" ID-DOI="http://doi.org/10.5281/zenodo.5375131" ID-Zenodo-Dep="5375131" httpUri="https://zenodo.org/record/5375131/files/figure.png" pageId="27" pageNumber="432" startId="27.[151,162,1564,1581]" targetBox="[195,1206,166,1495]" targetPageId="27">
|
||
<paragraph id="231D369B0F61FFE383C6F9F1B19926DF" blockId="27.[151,1248,1564,1666]" pageId="27" pageNumber="432">
|
||
FIG. 17. —
|
||
<taxonomicName id="E4A24D180F61FFE383A5F9F1B3832670" authority="Karatajūtē-Talimaa & Märss, 2002" authorityName="Karatajūtē-Talimaa & Märss" authorityYear="2002" box="[244,386,1564,1581]" class="Pteraspidomorphi" family="Loganelliidae" genus="Thelodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phlebolepidiformes" pageId="27" pageNumber="432" phylum="Chordata" rank="species" species="visvaldi" status="sp. nov.">
|
||
<emphasis id="11D6EA890F61FFE383A5F9F1B3832670" box="[244,386,1564,1581]" italics="true" pageId="27" pageNumber="432">Thelodus visvaldi</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="0AE557F20F61FFE382D9F9F1B3BA2670" box="[392,443,1564,1581]" pageId="27" pageNumber="432" rank="species">n. sp.</taxonomicNameLabel>
|
||
;
|
||
<emphasis id="11D6EA890F61FFE38292F9F1B3D12670" bold="true" box="[451,464,1564,1581]" pageId="27" pageNumber="432">A</emphasis>
|
||
, head scale;
|
||
<emphasis id="11D6EA890F61FFE38110F9F1B04F2670" bold="true" box="[577,590,1564,1581]" pageId="27" pageNumber="432">B</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F61FFE38108F9F1B0752670" bold="true" box="[601,628,1564,1581]" pageId="27" pageNumber="432">D -I</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F61FFE3812EF9F1B0A22670" bold="true" box="[639,675,1564,1581]" pageId="27" pageNumber="432">K -O</emphasis>
|
||
, trunk scales;
|
||
<emphasis id="11D6EA890F61FFE3804FF9F1B12D2670" bold="true" box="[798,812,1564,1581]" pageId="27" pageNumber="432">C</emphasis>
|
||
, fin scale?;
|
||
<emphasis id="11D6EA890F61FFE380C2F9F1B19C2670" bold="true" box="[915,925,1564,1581]" pageId="27" pageNumber="432">J</emphasis>
|
||
, scale of unknown position;
|
||
<emphasis id="11D6EA890F61FFE387C1F9F1B6B32670" bold="true" box="[1168,1202,1564,1581]" pageId="27" pageNumber="432">A -D</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F61FFE387ECF9F1B6D82670" bold="true" box="[1213,1241,1564,1581]" pageId="27" pageNumber="432">F -J</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F61FFE383C6F9DCB2BF261F" bold="true" box="[151,190,1585,1602]" pageId="27" pageNumber="432">M -O</emphasis>
|
||
, scales in crown view;
|
||
<emphasis id="11D6EA890F61FFE3822EF9DCB38A261F" bold="true" box="[383,395,1585,1602]" pageId="27" pageNumber="432">E</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F61FFE382C4F9DCB3A2261F" bold="true" box="[405,419,1585,1602]" pageId="27" pageNumber="432">N</emphasis>
|
||
, scales in oblique lateral view;
|
||
<emphasis id="11D6EA890F61FFE381F7F9DCB0B2261F" bold="true" box="[678,691,1585,1602]" pageId="27" pageNumber="432">K</emphasis>
|
||
, scale in lateral view;
|
||
<emphasis id="11D6EA890F61FFE3803BF9DCB174261F" bold="true" box="[874,885,1585,1602]" pageId="27" pageNumber="432">L</emphasis>
|
||
, scale in base view;
|
||
<emphasis id="11D6EA890F61FFE38773F9DCB62E261F" bold="true" box="[1058,1071,1585,1602]" pageId="27" pageNumber="432">A</emphasis>
|
||
, Pi 7541;
|
||
<emphasis id="11D6EA890F61FFE387D2F9DCB691261F" bold="true" box="[1155,1168,1585,1602]" pageId="27" pageNumber="432">B</emphasis>
|
||
, Pi 7556;
|
||
<emphasis id="11D6EA890F61FFE383C6F9AAB2A42605" bold="true" box="[151,165,1607,1624]" pageId="27" pageNumber="432">C</emphasis>
|
||
, Pi 7549;
|
||
<emphasis id="11D6EA890F61FFE383A6F9AAB3042605" bold="true" box="[247,261,1607,1624]" pageId="27" pageNumber="432">D</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F61FFE3825EF9AAB31A2605" bold="true" box="[271,283,1607,1624]" pageId="27" pageNumber="432">E</emphasis>
|
||
, Pi 7544;
|
||
<emphasis id="11D6EA890F61FFE3823EF9AAB37B2605" bold="true" box="[367,378,1607,1624]" pageId="27" pageNumber="432">F</emphasis>
|
||
, Pi 7542;
|
||
<emphasis id="11D6EA890F61FFE3829CF9AAB3DA2605" bold="true" box="[461,475,1607,1624]" pageId="27" pageNumber="432">G</emphasis>
|
||
, LIG 35-903, the scale is lost;
|
||
<emphasis id="11D6EA890F61FFE38186F9AAB0E42605" bold="true" box="[727,741,1607,1624]" pageId="27" pageNumber="432">H</emphasis>
|
||
, LIG 35-904;
|
||
<emphasis id="11D6EA890F61FFE38007F9AAB15D2605" bold="true" box="[854,860,1607,1624]" pageId="27" pageNumber="432">I</emphasis>
|
||
, Pi 7545;
|
||
<emphasis id="11D6EA890F61FFE380FEF9AAB1B82605" bold="true" box="[943,953,1607,1624]" pageId="27" pageNumber="432">J</emphasis>
|
||
, Pi 7559;
|
||
<emphasis id="11D6EA890F61FFE3875DF9AAB6182605" bold="true" box="[1036,1049,1607,1624]" pageId="27" pageNumber="432">K</emphasis>
|
||
, LIG 35-905;
|
||
<emphasis id="11D6EA890F61FFE387DAF9AAB6972605" bold="true" box="[1163,1174,1607,1624]" pageId="27" pageNumber="432">L</emphasis>
|
||
, LIG 35- 906;
|
||
<emphasis id="11D6EA890F61FFE38393F9B1B2D22630" bold="true" box="[194,211,1628,1645]" pageId="27" pageNumber="432">M</emphasis>
|
||
, Pi 7553;
|
||
<emphasis id="11D6EA890F61FFE3827CF9B1B33A2630" bold="true" box="[301,315,1628,1645]" pageId="27" pageNumber="432">N</emphasis>
|
||
, Pi 7554;
|
||
<emphasis id="11D6EA890F61FFE382C5F9B1B3A22630" bold="true" box="[404,419,1628,1645]" pageId="27" pageNumber="432">O</emphasis>
|
||
, Pi 7555;
|
||
<emphasis id="11D6EA890F61FFE382ADF9B1B01A2630" bold="true" box="[508,539,1628,1645]" pageId="27" pageNumber="432">A -F</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F61FFE38179F9B1B02F2630" bold="true" box="[552,558,1628,1645]" pageId="27" pageNumber="432">I</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F61FFE38168F9B1B0422630" bold="true" box="[569,579,1628,1645]" pageId="27" pageNumber="432">J</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F61FFE38101F9B1B0762630" bold="true" box="[592,631,1628,1645]" pageId="27" pageNumber="432">M -O</emphasis>
|
||
, MF 34-1, Cape October, October Revolution Island;
|
||
<emphasis id="11D6EA890F61FFE38719F9B1B6572630" bold="true" box="[1096,1110,1628,1645]" pageId="27" pageNumber="432">G</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F61FFE38733F9B1B6712630" bold="true" box="[1122,1136,1628,1645]" pageId="27" pageNumber="432">H</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F61FFE3872DF9B1B6882630" bold="true" box="[1148,1161,1628,1645]" pageId="27" pageNumber="432">K</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F61FFE387C7F9B1B6A02630" bold="true" box="[1174,1185,1628,1645]" pageId="27" pageNumber="432">L</emphasis>
|
||
, 5m-1, Pioneer Island; Ludlow, Upper Silurian. Scale bars: A-C, F-K, M-O, 0.1 mm; D, E, L, 0.2 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="77DD66130F66FFE483C6F9AAB3B626DF" ID-DOI="http://doi.org/10.5281/zenodo.5375133" ID-Zenodo-Dep="5375133" httpUri="https://zenodo.org/record/5375133/files/figure.png" pageId="28" pageNumber="433" startId="28.[151,162,1607,1624]" targetBox="[228,1209,232,1490]" targetPageId="28">
|
||
<paragraph id="231D369B0F66FFE483C6F9AAB3B626DF" blockId="28.[151,1249,1607,1666]" pageId="28" pageNumber="433">
|
||
FIG. 18. — Set of scales of
|
||
<taxonomicName id="E4A24D180F66FFE482D0F9AAB0112605" authority="Karatajūtē-Talimaa & Märss, 2002" authorityName="Karatajūtē-Talimaa & Märss" authorityYear="2002" box="[385,528,1607,1624]" class="Pteraspidomorphi" family="Loganelliidae" genus="Thelodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phlebolepidiformes" pageId="28" pageNumber="433" phylum="Chordata" rank="species" species="visvaldi" status="sp. nov.">
|
||
<emphasis id="11D6EA890F66FFE482D0F9AAB0112605" box="[385,528,1607,1624]" italics="true" pageId="28" pageNumber="433">Thelodus visvaldi</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="0AE557F20F66FFE48146F9AAB04A2605" box="[535,587,1607,1624]" pageId="28" pageNumber="433" rank="species">n. sp.</taxonomicNameLabel>
|
||
;
|
||
<emphasis id="11D6EA890F66FFE48102F9AAB0742605" bold="true" box="[595,629,1607,1624]" pageId="28" pageNumber="433">A -G</emphasis>
|
||
, head scales;
|
||
<emphasis id="11D6EA890F66FFE481A0F9AAB1132605" bold="true" box="[753,786,1607,1624]" pageId="28" pageNumber="433">H -T</emphasis>
|
||
, trunk scales;
|
||
<emphasis id="11D6EA890F66FFE480C1F9AAB19C2605" bold="true" box="[912,925,1607,1624]" pageId="28" pageNumber="433">A</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F66FFE480F9F9AAB1BC2600" bold="true" box="[936,957,1607,1629]" pageId="28" pageNumber="433">
|
||
B
|
||
<subScript id="BF2634DE0F66FFE480E4F9BDB1BC2600" attach="left" box="[949,957,1616,1629]" fontSize="5" pageId="28" pageNumber="433">1</subScript>
|
||
</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F66FFE48098F9AAB1ED2605" bold="true" box="[969,1004,1607,1624]" pageId="28" pageNumber="433">C -G</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F66FFE480A9F9AAB60F2600" bold="true" box="[1016,1038,1607,1629]" pageId="28" pageNumber="433">
|
||
H
|
||
<subScript id="BF2634DE0F66FFE48757F9BDB60F2600" attach="left" box="[1030,1038,1616,1629]" fontSize="5" pageId="28" pageNumber="433">1</subScript>
|
||
</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F66FFE48748F9AAB6262600" bold="true" box="[1049,1063,1607,1629]" pageId="28" pageNumber="433">
|
||
I
|
||
<subScript id="BF2634DE0F66FFE4874EF9BDB6262600" attach="left" box="[1055,1063,1616,1629]" fontSize="5" pageId="28" pageNumber="433">1</subScript>
|
||
</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F66FFE48763F9AAB65C2600" bold="true" box="[1074,1117,1607,1629]" pageId="28" pageNumber="433">
|
||
J -M
|
||
<subScript id="BF2634DE0F66FFE48704F9BDB65C2600" attach="left" box="[1109,1117,1616,1629]" fontSize="5" pageId="28" pageNumber="433">1</subScript>
|
||
</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F66FFE48738F9AAB6882605" bold="true" box="[1129,1161,1607,1624]" pageId="28" pageNumber="433">N -T</emphasis>
|
||
, scales in crown view;
|
||
<emphasis id="11D6EA890F66FFE48253F9B1B316262E" bold="true" box="[258,279,1628,1651]" pageId="28" pageNumber="433">
|
||
B
|
||
<subScript id="BF2634DE0F66FFE4825EF98BB316262E" attach="left" box="[271,279,1638,1651]" fontSize="5" pageId="28" pageNumber="433">2</subScript>
|
||
</emphasis>
|
||
, scale in base view;
|
||
<emphasis id="11D6EA890F66FFE48298F9B1B3DE262E" bold="true" box="[457,479,1628,1651]" pageId="28" pageNumber="433">
|
||
H
|
||
<subScript id="BF2634DE0F66FFE48286F98BB3DE262E" attach="left" box="[471,479,1638,1651]" fontSize="5" pageId="28" pageNumber="433">2</subScript>
|
||
</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F66FFE482BBF9B1B3F6262E" bold="true" box="[490,503,1628,1651]" pageId="28" pageNumber="433">
|
||
I
|
||
<subScript id="BF2634DE0F66FFE482BEF98BB3F6262E" attach="left" box="[495,503,1638,1651]" fontSize="5" pageId="28" pageNumber="433">2</subScript>
|
||
</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F66FFE48152F9B1B01D262E" bold="true" box="[515,540,1628,1651]" pageId="28" pageNumber="433">
|
||
M
|
||
<subScript id="BF2634DE0F66FFE48145F98BB01D262E" attach="left" box="[532,540,1638,1651]" fontSize="5" pageId="28" pageNumber="433">2</subScript>
|
||
</emphasis>
|
||
, scales in lateral view; LIG 35-120-LIG 35-139; sample 5m, Pioneer Island, Ludlow, Upper Silurian. Scale bar: 0.3 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="77DD66130F67FFE583C6F9F1B33E26DF" ID-DOI="http://doi.org/10.5281/zenodo.5375135" ID-Zenodo-Dep="5375135" httpUri="https://zenodo.org/record/5375135/files/figure.png" pageId="29" pageNumber="434" startId="29.[151,162,1564,1581]" targetBox="[159,1190,176,1523]" targetPageId="29">
|
||
<paragraph id="231D369B0F67FFE583C6F9F1B33E26DF" blockId="29.[151,1249,1564,1666]" pageId="29" pageNumber="434">
|
||
FIG. 19. — Microstructure of the scales;
|
||
<emphasis id="11D6EA890F67FFE582B8F9F1B00A2670" bold="true" box="[489,523,1564,1581]" pageId="29" pageNumber="434">A -D</emphasis>
|
||
,
|
||
<taxonomicName id="E4A24D180F67FFE58144F9F1B0A52670" authority="Karatajūtē-Talimaa & Märss, 2002" authorityName="Karatajūtē-Talimaa & Märss" authorityYear="2002" box="[533,676,1564,1581]" class="Pteraspidomorphi" family="Loganelliidae" genus="Thelodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phlebolepidiformes" pageId="29" pageNumber="434" phylum="Chordata" rank="species" species="visvaldi" status="sp. nov.">
|
||
<emphasis id="11D6EA890F67FFE58144F9F1B0A52670" box="[533,676,1564,1581]" italics="true" pageId="29" pageNumber="434">Thelodus visvaldi</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="0AE557F20F67FFE581FBF9F1B0DD2670" box="[682,732,1564,1581]" pageId="29" pageNumber="434" rank="species">n. sp.</taxonomicNameLabel>
|
||
;
|
||
<emphasis id="11D6EA890F67FFE581B5F9F1B0F12670" bold="true" box="[740,752,1564,1581]" pageId="29" pageNumber="434">E</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F67FFE581AAF9F1B1072670" bold="true" box="[763,774,1564,1581]" pageId="29" pageNumber="434">F</emphasis>
|
||
,
|
||
<taxonomicName id="E4A24D180F67FFE58040F9F1B17F2670" box="[785,894,1564,1581]" class="Pteraspidomorphi" family="Loganelliidae" genus="Thelodus" kingdom="Animalia" order="Phlebolepidiformes" pageId="29" pageNumber="434" phylum="Chordata" rank="species" species="undetermined">
|
||
<emphasis id="11D6EA890F67FFE58040F9F1B15C2670" box="[785,861,1564,1581]" italics="true" pageId="29" pageNumber="434">Thelodus</emphasis>
|
||
sp.
|
||
</taxonomicName>
|
||
indet.;
|
||
<emphasis id="11D6EA890F67FFE580EDF9F1B1C82670" bold="true" box="[956,969,1564,1581]" pageId="29" pageNumber="434">A</emphasis>
|
||
, Pi 7644;
|
||
<emphasis id="11D6EA890F67FFE5874FF9F1B62A2670" bold="true" box="[1054,1067,1564,1581]" pageId="29" pageNumber="434">B</emphasis>
|
||
, Pi 7645;
|
||
<emphasis id="11D6EA890F67FFE587D0F9F1B68E2670" bold="true" box="[1153,1167,1564,1581]" pageId="29" pageNumber="434">C</emphasis>
|
||
, Pi 7646;
|
||
<emphasis id="11D6EA890F67FFE583C6F9DCB2A4261F" bold="true" box="[151,165,1585,1602]" pageId="29" pageNumber="434">D</emphasis>
|
||
, Pi 7647;
|
||
<emphasis id="11D6EA890F67FFE583ADF9DCB309261F" bold="true" box="[252,264,1585,1602]" pageId="29" pageNumber="434">E</emphasis>
|
||
, Pi 6445;
|
||
<emphasis id="11D6EA890F67FFE58231F9DCB36A261F" bold="true" box="[352,363,1585,1602]" pageId="29" pageNumber="434">F</emphasis>
|
||
, Pi 6365;
|
||
<emphasis id="11D6EA890F67FFE58293F9DCB3CE261F" bold="true" box="[450,463,1585,1602]" pageId="29" pageNumber="434">A</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F67FFE5828BF9DCB3E9261F" bold="true" box="[474,488,1585,1602]" pageId="29" pageNumber="434">C</emphasis>
|
||
, sample 20568, Komsomolets Island, upper part of Ludlow;
|
||
<emphasis id="11D6EA890F67FFE580BAF9DCB1F9261F" bold="true" box="[1003,1016,1585,1602]" pageId="29" pageNumber="434">B</emphasis>
|
||
, sample 2-3k;
|
||
<emphasis id="11D6EA890F67FFE58729F9DCB687261F" bold="true" box="[1144,1158,1585,1602]" pageId="29" pageNumber="434">D</emphasis>
|
||
, MF 11-1, Matusevich River, October Revolution Island, Ust-Spokojnaya Formation;
|
||
<emphasis id="11D6EA890F67FFE58070F9AAB12C2605" bold="true" box="[801,813,1607,1624]" pageId="29" pageNumber="434">E</emphasis>
|
||
,
|
||
<emphasis id="11D6EA890F67FFE5806BF9AAB1442605" bold="true" box="[826,837,1607,1624]" pageId="29" pageNumber="434">F</emphasis>
|
||
, sample 2055zh, Pioneer Island, upper part of Ludlow, Upper Silurian. Abbreviations:
|
||
<emphasis id="11D6EA890F67FFE582B0F9B1B3ED2630" bold="true" box="[481,492,1628,1645]" pageId="29" pageNumber="434">b</emphasis>
|
||
, base;
|
||
<emphasis id="11D6EA890F67FFE5817CF9B1B03E2630" bold="true" box="[557,575,1628,1645]" pageId="29" pageNumber="434">cr</emphasis>
|
||
, crown;
|
||
<emphasis id="11D6EA890F67FFE581DBF9B1B09D2630" bold="true" box="[650,668,1628,1645]" pageId="29" pageNumber="434">dt</emphasis>
|
||
, dentine tubules;
|
||
<emphasis id="11D6EA890F67FFE58064F9B1B1412630" bold="true" box="[821,832,1628,1645]" pageId="29" pageNumber="434">n</emphasis>
|
||
, neck;
|
||
<emphasis id="11D6EA890F67FFE580D1F9B1B1A12630" bold="true" box="[896,928,1628,1645]" pageId="29" pageNumber="434">pcv</emphasis>
|
||
, pulp cavity;
|
||
<emphasis id="11D6EA890F67FFE58745F9B1B62C2630" bold="true" box="[1044,1069,1628,1645]" pageId="29" pageNumber="434">rcr</emphasis>
|
||
, ridge on the crown. Scale bars: 0.1 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<subSubSection id="6BB865100F64FFE683C6FF24B053214D" pageId="30" pageNumber="435" type="etymology">
|
||
<paragraph id="231D369B0F64FFE683C6FF24B053214D" blockId="30.[151,684,168,734]" pageId="30" pageNumber="435">
|
||
ETYMOLOGY. — Named after Dr. Visvaldis Kuršs,
|
||
<collectingRegion id="E166F8790F64FFE683C6FF0FB2C920A5" box="[151,200,226,248]" country="Latvia" name="Riga" pageId="30" pageNumber="435">Riga</collectingRegion>
|
||
, Latvian State University, who participated in the field work on Severnaya Zemlya in 1978.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="6BB865100F64FFE683C6FEF0B0442262" pageId="30" pageNumber="435" type="materials_examined">
|
||
<paragraph id="231D369B0F64FFE683C6FEF0B0632138" blockId="30.[151,684,168,734]" pageId="30" pageNumber="435">
|
||
<collectionCode id="45B3AE5E0F64FFE683C6FEF0B397216C" box="[151,406,285,306]" pageId="30" pageNumber="435">
|
||
<typeStatus id="FC1988390F64FFE683C6FEF0B2CB216C" box="[151,202,285,306]" pageId="30" pageNumber="435">TYPE</typeStatus>
|
||
LOCALITY AND AGE
|
||
</collectionCode>
|
||
. — Sample MF 34-1, Cape October, October Revolution Island, Severnaya Zemlya Archipelago, Ludlow, Upper Silurian.
|
||
</paragraph>
|
||
<paragraph id="231D369B0F64FFE683C6FE9DB04221DB" blockId="30.[151,684,168,734]" box="[151,579,368,390]" pageId="30" pageNumber="435">MATERIAL EXAMINED. — About 700 scales.</paragraph>
|
||
<paragraph id="231D369B0F64FFE683C6FE7CB0442262" blockId="30.[151,684,168,734]" pageId="30" pageNumber="435">
|
||
OCCURRENCE. — Samples MF 34-1, Cape October; 2-3, 2-4, 2-7, 2-23, Matusevich River, October Revolution Island; 5m-1, 5d, 5i, 5zh-
|
||
<geoCoordinate id="4696505C0F64FFE68172FE2EB04E2184" box="[547,591,451,473]" degrees="1,5" direction="east" orientation="longitude" pageId="30" pageNumber="435" precision="5555" value="1.5">1,5e</geoCoordinate>
|
||
, Pioneer Island, Severnaya Zemlya Archipelago, Ust- Spokojnaya Formation, Ludlow, Upper Silurian. On Pioneer Island
|
||
<taxonomicName id="E4A24D180F64FFE6827EFDE2B3DF2279" authority="Karatajūtē-Talimaa & Märss, 2002" authorityName="Karatajūtē-Talimaa & Märss" authorityYear="2002" box="[303,478,527,548]" class="Pteraspidomorphi" family="Loganelliidae" genus="Thelodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phlebolepidiformes" pageId="30" pageNumber="435" phylum="Chordata" rank="species" species="visvaldi" status="sp. nov.">
|
||
<emphasis id="11D6EA890F64FFE6827EFDE2B3DF2279" box="[303,478,527,548]" italics="true" pageId="30" pageNumber="435">Thelodus visvaldi</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="0AE557F20F64FFE682B4FDFDB01D2278" box="[485,540,528,549]" pageId="30" pageNumber="435" rank="species">n. sp.</taxonomicNameLabel>
|
||
occurs also in the Wenlock part of the section (see
|
||
<figureCitation id="BB992A1E0F64FFE68151FDC4B0362262" box="[512,567,553,575]" captionStart="FIG" captionStartId="2.[153,164,1435,1452]" captionTargetBox="[143,1259,160,1386]" captionTargetId="figure-184@2.[129,1281,150,1401]" captionTargetPageId="2" captionText="FIG. 1. — Distribution of thelodonts in the Silurian section of Pioneer Island; 1, sandstone; 2, sandstone and silty sandstone; 3, argillite; 4, biomorphic limestone; 5, dolomite; 6, dolomitic limestone; 7, oolitic limestone; 8, stromatoporoidal limestone (after Klubov et al. 1980: fig. 2; modified). Cyrillic letters in fig. 2 of Klubov et al. 1980 are in present paper transliterated as follows: A = a; Б = b; B = v; г = g; д = d; E = e; 3 = zh; и = i; K = k; M = m; H = kh." figureDoi="http://doi.org/10.5281/zenodo.5375099" httpUri="https://zenodo.org/record/5375099/files/figure.png" pageId="30" pageNumber="435">Fig. 1</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="6BB865100F64FFE683C6FDA7B2DF2283" pageId="30" pageNumber="435" type="diagnosis">
|
||
<paragraph id="231D369B0F64FFE683C6FDA7B2DF2283" blockId="30.[151,684,168,734]" pageId="30" pageNumber="435">
|
||
DIAGNOSIS. — Scale crown quadrangular to oblong, with longitudinal grooves in flat surface or with smooth flat crown surface. Between grooves, longitudinal ridges often split into two parallel ones. The neck is without vertical ridges. Typical
|
||
<taxonomicName id="E4A24D180F64FFE68175FD42B07E2299" authorityName="Agassiz" authorityYear="1839" box="[548,639,687,708]" class="Pteraspidomorphi" family="Loganelliidae" genus="Thelodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phlebolepidiformes" pageId="30" pageNumber="435" phylum="Chordata" rank="genus">
|
||
<emphasis id="11D6EA890F64FFE68175FD42B07E2299" box="[548,639,687,708]" italics="true" pageId="30" pageNumber="435">Thelodus</emphasis>
|
||
</taxonomicName>
|
||
histology.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="6BB865100F64FFE683C6FCEAB6D825DD" pageId="30" pageNumber="435" type="description">
|
||
<paragraph id="231D369B0F64FFE683C6FCEAB3292342" blockId="30.[151,685,775,1664]" box="[151,296,775,801]" pageId="30" pageNumber="435">DESCRIPTION</paragraph>
|
||
<paragraph id="231D369B0F64FFE683C6FCC5B310231F" blockId="30.[151,685,775,1664]" box="[151,273,808,834]" pageId="30" pageNumber="435">
|
||
<emphasis id="11D6EA890F64FFE683C6FCC5B310231F" box="[151,273,808,834]" italics="true" pageId="30" pageNumber="435">Morphology</emphasis>
|
||
</paragraph>
|
||
<paragraph id="231D369B0F64FFE683C6FCA4B1C0215D" blockId="30.[151,685,775,1664]" lastBlockId="30.[714,1248,168,384]" pageId="30" pageNumber="435">
|
||
Crowns of head scales quadrangular or round (
|
||
<figureCitation id="BB992A1E0F64FFE683CEFC85B2FE23DC" box="[159,255,872,897]" captionStart="FIG" captionStartId="27.[151,162,1564,1581]" captionTargetBox="[195,1206,166,1495]" captionTargetId="figure-205@27.[195,1206,166,1495]" captionTargetPageId="27" captionText="FIG. 17. — Thelodus visvaldi n. sp.; A, head scale; B, D-I, K-O, trunk scales; C, fin scale?; J, scale of unknown position; A-D, F-J, M-O, scales in crown view; E, N, scales in oblique lateral view; K, scale in lateral view; L, scale in base view; A, Pi 7541; B, Pi 7556; C, Pi 7549; D, E, Pi 7544; F, Pi 7542; G, LIG 35-903, the scale is lost; H, LIG 35-904; I, Pi 7545; J, Pi 7559; K, LIG 35-905; L, LIG 35- 906; M, Pi 7553; N, Pi 7554; O, Pi 7555; A-F, I, J, M-O, MF 34-1, Cape October, October Revolution Island; G, H, K, L, 5m-1, Pioneer Island; Ludlow, Upper Silurian. Scale bars: A-C, F-K, M-O, 0.1 mm; D, E, L, 0.2 mm." figureDoi="http://doi.org/10.5281/zenodo.5375131" httpUri="https://zenodo.org/record/5375131/files/figure.png" pageId="30" pageNumber="435">Fig. 17A</figureCitation>
|
||
) with short ridges and grooves anterolaterally; postero-lateral margins serrated. The scales are small, the length of head scales
|
||
<quantity id="E45A9B7E0F64FFE681D1FC44B2EB23BD" metricMagnitude="-4" metricUnit="m" metricValue="4.5" metricValueMax="5.0" metricValueMin="4.0" pageId="30" pageNumber="435" unit="mm" value="0.45" valueMax="0.5" valueMin="0.4">0.4- 0.5 mm</quantity>
|
||
, their width
|
||
<quantity id="E45A9B7E0F64FFE68220FC25B3EF23BD" box="[369,494,968,992]" metricMagnitude="-4" metricUnit="m" metricValue="4.0" metricValueMax="5.0" metricValueMin="3.0" pageId="30" pageNumber="435" unit="mm" value="0.4" valueMax="0.5" valueMin="0.3">0.3-0.5 mm</quantity>
|
||
. In the same sample the quadrangular scales with flat and smooth crown surface (
|
||
<figureCitation id="BB992A1E0F64FFE6826CFBE5B386247C" box="[317,391,1032,1057]" captionStart="FIG" captionStartId="28.[151,162,1607,1624]" captionTargetBox="[228,1209,232,1490]" captionTargetId="figure-110@28.[214,1221,234,1499]" captionTargetPageId="28" captionText="FIG. 18. — Set of scales of Thelodus visvaldi n. sp.; A-G, head scales; H-T, trunk scales; A, B1, C-G, H1, I1, J-M1, N-T, scales in crown view; B2, scale in base view; H2, I2, M2, scales in lateral view; LIG 35-120-LIG 35-139; sample 5m, Pioneer Island, Ludlow, Upper Silurian. Scale bar: 0.3 mm." figureDoi="http://doi.org/10.5281/zenodo.5375133" httpUri="https://zenodo.org/record/5375133/files/figure.png" pageId="30" pageNumber="435">Fig. 18</figureCitation>
|
||
A-G) are rather numerous. We tend to believe that these scales covered the body behind the rostrum and in front of the dorsal and ventral fins, and correspond to the transitional scales. The measurements of the smooth scales are: in average 0.5 ×
|
||
<quantity id="E45A9B7E0F64FFE682E6FB45B00B249D" box="[439,522,1192,1216]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="30" pageNumber="435" unit="mm" value="0.5">0.5 mm</quantity>
|
||
, the maximum length
|
||
<quantity id="E45A9B7E0F64FFE683B0FB24B33224BD" box="[225,307,1225,1249]" metricMagnitude="-3" metricUnit="m" metricValue="1.4" pageId="30" pageNumber="435" unit="mm" value="1.4">1.4 mm</quantity>
|
||
and width 1.0 mm. The rest of the trunk was covered with relatively high scales with a quadrangular or oblong crown that was covered with longitudinal grooves and ridges (
|
||
<figureCitation id="BB992A1E0F64FFE683CEFAA5B308253C" box="[159,265,1352,1377]" captionStart="FIG" captionStartId="27.[151,162,1564,1581]" captionTargetBox="[195,1206,166,1495]" captionTargetId="figure-205@27.[195,1206,166,1495]" captionTargetPageId="27" captionText="FIG. 17. — Thelodus visvaldi n. sp.; A, head scale; B, D-I, K-O, trunk scales; C, fin scale?; J, scale of unknown position; A-D, F-J, M-O, scales in crown view; E, N, scales in oblique lateral view; K, scale in lateral view; L, scale in base view; A, Pi 7541; B, Pi 7556; C, Pi 7549; D, E, Pi 7544; F, Pi 7542; G, LIG 35-903, the scale is lost; H, LIG 35-904; I, Pi 7545; J, Pi 7559; K, LIG 35-905; L, LIG 35- 906; M, Pi 7553; N, Pi 7554; O, Pi 7555; A-F, I, J, M-O, MF 34-1, Cape October, October Revolution Island; G, H, K, L, 5m-1, Pioneer Island; Ludlow, Upper Silurian. Scale bars: A-C, F-K, M-O, 0.1 mm; D, E, L, 0.2 mm." figureDoi="http://doi.org/10.5281/zenodo.5375131" httpUri="https://zenodo.org/record/5375131/files/figure.png" pageId="30" pageNumber="435">Figs 17B</figureCitation>
|
||
, D-I; 18H-T) nearly parallel in the medial part of the crown. Ridges are often divided into two. Narrow unsculptured margins characterize the trunk scales. The measurements of the scales are: length
|
||
<quantity id="E45A9B7E0F64FFE682FCFA24B02E25BD" box="[429,559,1481,1505]" metricMagnitude="-4" metricUnit="m" metricValue="6.5" metricValueMax="9.0" metricValueMin="4.0" pageId="30" pageNumber="435" unit="mm" value="0.65" valueMax="0.9" valueMin="0.4">0.4-0.9 mm</quantity>
|
||
and width
|
||
<quantity id="E45A9B7E0F64FFE683C6FA04B315265D" box="[151,276,1513,1537]" metricMagnitude="-4" metricUnit="m" metricValue="6" metricValueMax="8.0" metricValueMin="4.0" pageId="30" pageNumber="435" unit="mm" value="0.6" valueMax="0.8" valueMin="0.4">0.4-0.8 mm</quantity>
|
||
; in the
|
||
<typeStatus id="FC1988390F64FFE68234FA05B3C6265D" box="[357,455,1512,1536]" pageId="30" pageNumber="435" type="holotype">holotype</typeStatus>
|
||
(
|
||
<figureCitation id="BB992A1E0F64FFE68287FA05B030265C" box="[470,561,1512,1537]" captionStart="FIG" captionStartId="27.[151,162,1564,1581]" captionTargetBox="[195,1206,166,1495]" captionTargetId="figure-205@27.[195,1206,166,1495]" captionTargetPageId="27" captionText="FIG. 17. — Thelodus visvaldi n. sp.; A, head scale; B, D-I, K-O, trunk scales; C, fin scale?; J, scale of unknown position; A-D, F-J, M-O, scales in crown view; E, N, scales in oblique lateral view; K, scale in lateral view; L, scale in base view; A, Pi 7541; B, Pi 7556; C, Pi 7549; D, E, Pi 7544; F, Pi 7542; G, LIG 35-903, the scale is lost; H, LIG 35-904; I, Pi 7545; J, Pi 7559; K, LIG 35-905; L, LIG 35- 906; M, Pi 7553; N, Pi 7554; O, Pi 7555; A-F, I, J, M-O, MF 34-1, Cape October, October Revolution Island; G, H, K, L, 5m-1, Pioneer Island; Ludlow, Upper Silurian. Scale bars: A-C, F-K, M-O, 0.1 mm; D, E, L, 0.2 mm." figureDoi="http://doi.org/10.5281/zenodo.5375131" httpUri="https://zenodo.org/record/5375131/files/figure.png" pageId="30" pageNumber="435">Fig. 17F</figureCitation>
|
||
) the corresponding numbers are 0.6 and
|
||
<quantity id="E45A9B7E0F64FFE682B6F9E5B03D267D" box="[487,572,1544,1568]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="30" pageNumber="435" unit="mm" value="0.5">0.5 mm</quantity>
|
||
. The neck is distinct and relatively high. The base (
|
||
<figureCitation id="BB992A1E0F64FFE68119F9C5B2A8263C" captionStart="FIG" captionStartId="27.[151,162,1564,1581]" captionTargetBox="[195,1206,166,1495]" captionTargetId="figure-205@27.[195,1206,166,1495]" captionTargetPageId="27" captionText="FIG. 17. — Thelodus visvaldi n. sp.; A, head scale; B, D-I, K-O, trunk scales; C, fin scale?; J, scale of unknown position; A-D, F-J, M-O, scales in crown view; E, N, scales in oblique lateral view; K, scale in lateral view; L, scale in base view; A, Pi 7541; B, Pi 7556; C, Pi 7549; D, E, Pi 7544; F, Pi 7542; G, LIG 35-903, the scale is lost; H, LIG 35-904; I, Pi 7545; J, Pi 7559; K, LIG 35-905; L, LIG 35- 906; M, Pi 7553; N, Pi 7554; O, Pi 7555; A-F, I, J, M-O, MF 34-1, Cape October, October Revolution Island; G, H, K, L, 5m-1, Pioneer Island; Ludlow, Upper Silurian. Scale bars: A-C, F-K, M-O, 0.1 mm; D, E, L, 0.2 mm." figureDoi="http://doi.org/10.5281/zenodo.5375131" httpUri="https://zenodo.org/record/5375131/files/figure.png" pageId="30" pageNumber="435">Fig. 17K, L</figureCitation>
|
||
) is smaller than the crown, rhomboidal, sometimes rather wide. Narrow and small scales (
|
||
<figureCitation id="BB992A1E0F64FFE681D0F985B0E5209C" box="[641,740,169,1664]" captionStart="FIG" captionStartId="27.[151,162,1564,1581]" captionTargetBox="[195,1206,166,1495]" captionTargetId="figure-205@27.[195,1206,166,1495]" captionTargetPageId="27" captionText="FIG. 17. — Thelodus visvaldi n. sp.; A, head scale; B, D-I, K-O, trunk scales; C, fin scale?; J, scale of unknown position; A-D, F-J, M-O, scales in crown view; E, N, scales in oblique lateral view; K, scale in lateral view; L, scale in base view; A, Pi 7541; B, Pi 7556; C, Pi 7549; D, E, Pi 7544; F, Pi 7542; G, LIG 35-903, the scale is lost; H, LIG 35-904; I, Pi 7545; J, Pi 7559; K, LIG 35-905; L, LIG 35- 906; M, Pi 7553; N, Pi 7554; O, Pi 7555; A-F, I, J, M-O, MF 34-1, Cape October, October Revolution Island; G, H, K, L, 5m-1, Pioneer Island; Ludlow, Upper Silurian. Scale bars: A-C, F-K, M-O, 0.1 mm; D, E, L, 0.2 mm." figureDoi="http://doi.org/10.5281/zenodo.5375131" httpUri="https://zenodo.org/record/5375131/files/figure.png" pageId="30" pageNumber="435">Fig. 17</figureCitation>
|
||
M-O) were covering from the posterior part of the trunk. The scale in
|
||
<figureCitation id="BB992A1E0F64FFE6809CFF25B63120BC" box="[973,1072,200,225]" captionStart="FIG" captionStartId="27.[151,162,1564,1581]" captionTargetBox="[195,1206,166,1495]" captionTargetId="figure-205@27.[195,1206,166,1495]" captionTargetPageId="27" captionText="FIG. 17. — Thelodus visvaldi n. sp.; A, head scale; B, D-I, K-O, trunk scales; C, fin scale?; J, scale of unknown position; A-D, F-J, M-O, scales in crown view; E, N, scales in oblique lateral view; K, scale in lateral view; L, scale in base view; A, Pi 7541; B, Pi 7556; C, Pi 7549; D, E, Pi 7544; F, Pi 7542; G, LIG 35-903, the scale is lost; H, LIG 35-904; I, Pi 7545; J, Pi 7559; K, LIG 35-905; L, LIG 35- 906; M, Pi 7553; N, Pi 7554; O, Pi 7555; A-F, I, J, M-O, MF 34-1, Cape October, October Revolution Island; G, H, K, L, 5m-1, Pioneer Island; Ludlow, Upper Silurian. Scale bars: A-C, F-K, M-O, 0.1 mm; D, E, L, 0.2 mm." figureDoi="http://doi.org/10.5281/zenodo.5375131" httpUri="https://zenodo.org/record/5375131/files/figure.png" pageId="30" pageNumber="435">Fig. 17O</figureCitation>
|
||
is only
|
||
<quantity id="E45A9B7E0F64FFE687DDFF24B6DE20BD" box="[1164,1247,201,225]" metricMagnitude="-4" metricUnit="m" metricValue="4.0" pageId="30" pageNumber="435" unit="mm" value="0.4">0.4 mm</quantity>
|
||
long and
|
||
<quantity id="E45A9B7E0F64FFE6807FFF04B17E215D" box="[814,895,233,257]" metricMagnitude="-4" metricUnit="m" metricValue="2.0" pageId="30" pageNumber="435" unit="mm" value="0.2">0.2 mm</quantity>
|
||
wide.
|
||
</paragraph>
|
||
<paragraph id="231D369B0F64FFE6819BFEE4B6AF21DD" blockId="30.[714,1248,168,384]" pageId="30" pageNumber="435">
|
||
In
|
||
<figureCitation id="BB992A1E0F64FFE681B6FEE5B139217C" box="[743,824,264,289]" captionStart="FIG" captionStartId="27.[151,162,1564,1581]" captionTargetBox="[195,1206,166,1495]" captionTargetId="figure-205@27.[195,1206,166,1495]" captionTargetPageId="27" captionText="FIG. 17. — Thelodus visvaldi n. sp.; A, head scale; B, D-I, K-O, trunk scales; C, fin scale?; J, scale of unknown position; A-D, F-J, M-O, scales in crown view; E, N, scales in oblique lateral view; K, scale in lateral view; L, scale in base view; A, Pi 7541; B, Pi 7556; C, Pi 7549; D, E, Pi 7544; F, Pi 7542; G, LIG 35-903, the scale is lost; H, LIG 35-904; I, Pi 7545; J, Pi 7559; K, LIG 35-905; L, LIG 35- 906; M, Pi 7553; N, Pi 7554; O, Pi 7555; A-F, I, J, M-O, MF 34-1, Cape October, October Revolution Island; G, H, K, L, 5m-1, Pioneer Island; Ludlow, Upper Silurian. Scale bars: A-C, F-K, M-O, 0.1 mm; D, E, L, 0.2 mm." figureDoi="http://doi.org/10.5281/zenodo.5375131" httpUri="https://zenodo.org/record/5375131/files/figure.png" pageId="30" pageNumber="435">Fig. 17J</figureCitation>
|
||
is a very small scale, posteriorly broken (length
|
||
<quantity id="E45A9B7E0F64FFE6804AFEC4B16F211C" box="[795,878,297,321]" metricMagnitude="-4" metricUnit="m" metricValue="4.0" pageId="30" pageNumber="435" unit="mm" value="0.4">0.4 mm</quantity>
|
||
), but, still, trilobate shape is recognizable. The crown surface is typical for the new species. Its position on the body is unknown.
|
||
</paragraph>
|
||
<paragraph id="231D369B0F64FFE6819BFE45B1BD219C" blockId="30.[714,1247,423,705]" box="[714,956,423,450]" pageId="30" pageNumber="435">
|
||
<emphasis id="11D6EA890F64FFE6819BFE45B1BD219C" box="[714,956,423,450]" italics="true" pageId="30" pageNumber="435">
|
||
Histology (
|
||
<figureCitation id="BB992A1E0F64FFE68069FE4AB182219C" box="[824,899,423,449]" captionStart="FIG" captionStartId="29.[151,162,1564,1581]" captionTargetBox="[159,1190,176,1523]" captionTargetId="figure-142@29.[152,1203,167,1536]" captionTargetPageId="29" captionText="FIG. 19. — Microstructure of the scales; A-D, Thelodus visvaldi n. sp.; E, F, Thelodus sp. indet.; A, Pi 7644; B, Pi 7645; C, Pi 7646; D, Pi 7647; E, Pi 6445; F, Pi 6365; A, C, sample 20568, Komsomolets Island, upper part of Ludlow; B, sample 2-3k; D, MF 11-1, Matusevich River, October Revolution Island, Ust-Spokojnaya Formation; E, F, sample 2055zh, Pioneer Island, upper part of Ludlow, Upper Silurian. Abbreviations: b, base; cr, crown; dt, dentine tubules; n, neck; pcv, pulp cavity; rcr, ridge on the crown. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5375135" httpUri="https://zenodo.org/record/5375135/files/figure.png" pageId="30" pageNumber="435">Fig. 19</figureCitation>
|
||
A-D)
|
||
</emphasis>
|
||
</paragraph>
|
||
<paragraph id="231D369B0F64FFE6819BFE25B609229C" blockId="30.[714,1247,423,705]" pageId="30" pageNumber="435">
|
||
Dentine tubules start from the pulp cavity and are directed towards the base, neck and crown (
|
||
<figureCitation id="BB992A1E0F64FFE68182FDE5B161227C" box="[723,864,520,545]" captionStart="FIG" captionStartId="29.[151,162,1564,1581]" captionTargetBox="[159,1190,176,1523]" captionTargetId="figure-142@29.[152,1203,167,1536]" captionTargetPageId="29" captionText="FIG. 19. — Microstructure of the scales; A-D, Thelodus visvaldi n. sp.; E, F, Thelodus sp. indet.; A, Pi 7644; B, Pi 7645; C, Pi 7646; D, Pi 7647; E, Pi 6445; F, Pi 6365; A, C, sample 20568, Komsomolets Island, upper part of Ludlow; B, sample 2-3k; D, MF 11-1, Matusevich River, October Revolution Island, Ust-Spokojnaya Formation; E, F, sample 2055zh, Pioneer Island, upper part of Ludlow, Upper Silurian. Abbreviations: b, base; cr, crown; dt, dentine tubules; n, neck; pcv, pulp cavity; rcr, ridge on the crown. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5375135" httpUri="https://zenodo.org/record/5375135/files/figure.png" pageId="30" pageNumber="435">Fig. 19B, D</figureCitation>
|
||
). The tubules are comparatively wide in the lower part of the crown; they branch on some levels, and become narrower in the upper crown portion. The longest and most straight dentine tubules occur in the posterior crown portion (
|
||
<figureCitation id="BB992A1E0F64FFE6802BFD45B1C7229C" box="[890,966,680,705]" captionStart="FIG" captionStartId="29.[151,162,1564,1581]" captionTargetBox="[159,1190,176,1523]" captionTargetId="figure-142@29.[152,1203,167,1536]" captionTargetPageId="29" captionText="FIG. 19. — Microstructure of the scales; A-D, Thelodus visvaldi n. sp.; E, F, Thelodus sp. indet.; A, Pi 7644; B, Pi 7645; C, Pi 7646; D, Pi 7647; E, Pi 6445; F, Pi 6365; A, C, sample 20568, Komsomolets Island, upper part of Ludlow; B, sample 2-3k; D, MF 11-1, Matusevich River, October Revolution Island, Ust-Spokojnaya Formation; E, F, sample 2055zh, Pioneer Island, upper part of Ludlow, Upper Silurian. Abbreviations: b, base; cr, crown; dt, dentine tubules; n, neck; pcv, pulp cavity; rcr, ridge on the crown. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5375135" httpUri="https://zenodo.org/record/5375135/files/figure.png" pageId="30" pageNumber="435">Fig. 19</figureCitation>
|
||
A-C).
|
||
</paragraph>
|
||
<paragraph id="231D369B0F64FFE6819BFD05B15B22A2" blockId="30.[714,1247,744,1409]" box="[714,858,744,770]" pageId="30" pageNumber="435">COMPARISON</paragraph>
|
||
<paragraph id="231D369B0F64FFE6819BFCE5B6D825DD" blockId="30.[714,1247,744,1409]" pageId="30" pageNumber="435">
|
||
Trunk scales of
|
||
<taxonomicName id="E4A24D180F64FFE680DEFCE5B666237D" authority="Karatajūtē-Talimaa & Märss, 2002" authorityName="Karatajūtē-Talimaa & Märss" authorityYear="2002" box="[911,1127,776,800]" class="Pteraspidomorphi" family="Loganelliidae" genus="Thelodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phlebolepidiformes" pageId="30" pageNumber="435" phylum="Chordata" rank="species" species="visvaldi" status="sp. nov.">
|
||
<emphasis id="11D6EA890F64FFE680DEFCE5B666237D" box="[911,1127,776,800]" italics="true" pageId="30" pageNumber="435">Thelodus visvaldi</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="0AE557F20F64FFE68721FCE4B6B3237D" box="[1136,1202,777,800]" pageId="30" pageNumber="435" rank="species">n. sp.</taxonomicNameLabel>
|
||
are quadrangular, their crowns carrying nearly parallel grooves and ridges in the medial part, the ridges being often bifurcated. In outline they resemble
|
||
<taxonomicName id="E4A24D180F64FFE68063FC64B63623FD" authority="Gross, 1967" authorityName="Gross" authorityYear="1967" box="[818,1079,904,929]" class="Pteraspidomorphi" family="Loganelliidae" genus="Thelodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phlebolepidiformes" pageId="30" pageNumber="435" phylum="Chordata" rank="species" species="sculptilis">
|
||
<emphasis id="11D6EA890F64FFE68063FC64B14223FD" box="[818,835,905,928]" italics="true" pageId="30" pageNumber="435">T</emphasis>
|
||
.
|
||
<emphasis id="11D6EA890F64FFE68001FC65B1AA23FD" box="[848,939,904,928]" italics="true" pageId="30" pageNumber="435">sculptilis</emphasis>
|
||
<bibRefCitation id="47334B6A0F64FFE680E3FC64B63623FD" author="GROSS W." box="[946,1079,904,929]" pageId="30" pageNumber="435" pagination="1 - 67" refId="ref17293" refString="GROSS W. 1967. - Uber Thelodontier-Schuppen. Palaeontographica A 127: 1 - 67." type="journal article" year="1967">Gross, 1967</bibRefCitation>
|
||
</taxonomicName>
|
||
, in having relatively short scales but the latter has only few ridges on its crowns. The sculpture of both
|
||
<taxonomicName id="E4A24D180F64FFE68796FC24B12A245D" authority="Karatajūtē-Talimaa & Märss, 2002" authorityName="Karatajūtē-Talimaa & Märss" authorityYear="2002" class="Pteraspidomorphi" family="Loganelliidae" genus="Thelodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phlebolepidiformes" pageId="30" pageNumber="435" phylum="Chordata" rank="species" species="visvaldi" status="sp. nov.">
|
||
<emphasis id="11D6EA890F64FFE68796FC24B6D923BD" box="[1223,1240,969,992]" italics="true" pageId="30" pageNumber="435">T</emphasis>
|
||
.
|
||
<emphasis id="11D6EA890F64FFE6819BFC05B12A245D" box="[714,811,1000,1024]" italics="true" pageId="30" pageNumber="435">visvaldi</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="0AE557F20F64FFE68064FC04B177245D" box="[821,886,1001,1024]" pageId="30" pageNumber="435" rank="species">n. sp.</taxonomicNameLabel>
|
||
and
|
||
<taxonomicName id="E4A24D180F64FFE680E4FC04B641245D" baseAuthorityName="Pander" baseAuthorityYear="1856" box="[949,1088,1000,1024]" class="Pteraspidomorphi" family="Loganelliidae" genus="Thelodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phlebolepidiformes" pageId="30" pageNumber="435" phylum="Chordata" rank="species" species="schmidti">
|
||
<emphasis id="11D6EA890F64FFE680E4FC04B1C7245D" box="[949,966,1001,1024]" italics="true" pageId="30" pageNumber="435">T</emphasis>
|
||
.
|
||
<emphasis id="11D6EA890F64FFE68088FC05B641245D" box="[985,1088,1000,1024]" italics="true" pageId="30" pageNumber="435">schmidti</emphasis>
|
||
</taxonomicName>
|
||
(=
|
||
<taxonomicName id="E4A24D180F64FFE6873DFC04B6D5245D" baseAuthorityName="Pander" baseAuthorityYear="1856" box="[1132,1236,1000,1024]" class="Pteraspidomorphi" family="Loganelliidae" genus="Thelodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phlebolepidiformes" pageId="30" pageNumber="435" phylum="Chordata" rank="species" species="laevis">
|
||
<emphasis id="11D6EA890F64FFE6873DFC04B67C245D" box="[1132,1149,1001,1024]" italics="true" pageId="30" pageNumber="435">T</emphasis>
|
||
.
|
||
<emphasis id="11D6EA890F64FFE687DEFC05B6D5245D" box="[1167,1236,1000,1024]" italics="true" pageId="30" pageNumber="435">laevis</emphasis>
|
||
</taxonomicName>
|
||
) (Pander, 1856) is formed by longitudinal steep deep grooves and ridges but in the new species the ridges and grooves are more numerous and more parallel the medial part of the crown. The whole set of scales of
|
||
<taxonomicName id="E4A24D180F64FFE680ECFB64B64524FD" authorityName="Agassiz" authorityYear="1839" box="[957,1092,1160,1184]" class="Pteraspidomorphi" family="Loganelliidae" genus="Thelodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phlebolepidiformes" pageId="30" pageNumber="435" phylum="Chordata" rank="species" species="parvidens">
|
||
<emphasis id="11D6EA890F64FFE680ECFB64B1CF24FD" box="[957,974,1161,1184]" italics="true" pageId="30" pageNumber="435">T</emphasis>
|
||
.
|
||
<emphasis id="11D6EA890F64FFE6808BFB65B64524FD" box="[986,1092,1160,1184]" italics="true" pageId="30" pageNumber="435">parvidens</emphasis>
|
||
</taxonomicName>
|
||
is not known and in it richly ridged scales are not described.
|
||
<taxonomicName id="E4A24D180F64FFE6819BFB25B66124BD" authority="(Pander, 1856)" baseAuthorityName="Pander" baseAuthorityYear="1856" box="[714,1120,1224,1248]" class="Pteraspidomorphi" family="Loganelliidae" genus="Thelodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phlebolepidiformes" pageId="30" pageNumber="435" phylum="Chordata" rank="species" species="carinatus">
|
||
<emphasis id="11D6EA890F64FFE6819BFB25B1AB24BD" box="[714,938,1224,1248]" italics="true" pageId="30" pageNumber="435">Thelodus carinatus</emphasis>
|
||
(Pander, 1856)
|
||
</taxonomicName>
|
||
has gentle ridges on flat crown surface; some scales described here (e.g.,
|
||
<figureCitation id="BB992A1E0F64FFE68099FAE5B618257C" box="[968,1049,1288,1313]" captionStart="FIG" captionStartId="7.[151,162,1521,1538]" captionTargetBox="[254,1136,181,1448]" captionTargetId="figure-266@7.[242,1159,169,1463]" captionTargetPageId="7" captionText="FIG. 4. — Set of scales of Paralogania ex gr. martinssoni (Gross, 1967); A, head scale; B-J, O, transitional scales; K-N, P, R-Z, trunk scales; Q, fin scale; A-D, E1, F-J, L, N-T1, U, V1, W1, Y, Z, scales in crown view; E2, K, M, V2, scales in lateral view; T2, W2, X, scales in base view; A, LIG 35-007; B, LIG 35-001; C, LIG 35-002; D, LIG 35-005; E, LIG 35-006; F, LIG 35-008; G, LIG 35-009; H, LIG 35- 010; I, LIG 35-0013; J, LIG 35-031; K, LIG 35-016; L, LIG 35-017; M, LIG 35-014; N, LIG 35-021; O, LIG 35-012; P, LIG 35-023; Q, LIG 35-024; R, LIG 35-022; S, LIG 35-025; T, LIG 35-019; U, LIG 35-018; V, LIG 35-028; W, LIG 35-029; X, LIG 35-030; Y, LIG 35- 033; Z, LIG 35-032; A-I, K-W, sample 8d-1, Pioneer Island, Ludlow, Upper Silurian; J, X-Z, sample 5m-1, Pioneer Island, Ludlow, Upper Silurian. Scale bar: 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.5375105" httpUri="https://zenodo.org/record/5375105/files/figure.png" pageId="30" pageNumber="435">Fig. 4J</figureCitation>
|
||
) do resemble it. Sculpture of
|
||
<taxonomicName id="E4A24D180F64FFE68009FAC4B1CC251D" authority="Karatajūtē-Talimaa & Märss, 2002" authorityName="Karatajūtē-Talimaa & Märss" authorityYear="2002" box="[856,973,1320,1344]" class="Pteraspidomorphi" family="Loganelliidae" genus="Thelodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phlebolepidiformes" pageId="30" pageNumber="435" phylum="Chordata" rank="species" species="visvaldi" status="sp. nov.">
|
||
<emphasis id="11D6EA890F64FFE68009FAC4B168251D" box="[856,873,1321,1344]" italics="true" pageId="30" pageNumber="435">T</emphasis>
|
||
.
|
||
<emphasis id="11D6EA890F64FFE68026FAC5B1CC251D" box="[887,973,1320,1344]" italics="true" pageId="30" pageNumber="435">visvaldi</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="0AE557F20F64FFE68085FAC4B60E251D" box="[980,1039,1321,1344]" pageId="30" pageNumber="435" rank="species">n. sp.</taxonomicNameLabel>
|
||
and
|
||
<taxonomicName id="E4A24D180F64FFE68717FAC4B14F253C" authority="Marss, 1982" authorityName="Marss" authorityYear="1982" class="Pteraspidomorphi" family="Loganelliidae" genus="Thelodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phlebolepidiformes" pageId="30" pageNumber="435" phylum="Chordata" rank="species" species="admirabilis">
|
||
<emphasis id="11D6EA890F64FFE68717FAC4B656251D" box="[1094,1111,1321,1344]" italics="true" pageId="30" pageNumber="435">T</emphasis>
|
||
.
|
||
<emphasis id="11D6EA890F64FFE68735FAC5B6DE251D" box="[1124,1247,1320,1344]" italics="true" pageId="30" pageNumber="435">admirabilis</emphasis>
|
||
Märss, 1982
|
||
</taxonomicName>
|
||
differ in ridge/groove arrangement; the posterior prong is absent in
|
||
<taxonomicName id="E4A24D180F64FFE68774FA84B69825DD" authority="Karatajūtē-Talimaa & Märss, 2002" authorityName="Karatajūtē-Talimaa & Märss" authorityYear="2002" box="[1061,1177,1384,1408]" class="Pteraspidomorphi" family="Loganelliidae" genus="Thelodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phlebolepidiformes" pageId="30" pageNumber="435" phylum="Chordata" rank="species" species="visvaldi" status="sp. nov.">
|
||
<emphasis id="11D6EA890F64FFE68774FA84B63725DD" box="[1061,1078,1385,1408]" italics="true" pageId="30" pageNumber="435">T</emphasis>
|
||
.
|
||
<emphasis id="11D6EA890F64FFE68712FA85B69825DD" box="[1091,1177,1384,1408]" italics="true" pageId="30" pageNumber="435">visvaldi</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="0AE557F20F64FFE687CEFA84B6D825DD" box="[1183,1241,1385,1408]" pageId="30" pageNumber="435" rank="species">n. sp.</taxonomicNameLabel>
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |