160 lines
20 KiB
XML
160 lines
20 KiB
XML
<document id="789E50F4EECB89A112D806E6821FA4BD" ID-CLB-Dataset="53499" ID-DOI="10.11646/zootaxa.5296.3.6" ID-GBIF-Dataset="2825cf24-234a-4b85-b997-673ee08019bf" ID-ISSN="1175-5326" ID-Zenodo-Dep="7984131" ID-ZooBank="59AD1B4F-15B2-4DC0-A57E-2F6B57539D1A" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="juliana" checkinTime="1685427549966" checkinUser="plazi" docAuthor="Bartel, Christian, Dunlop, Jason A. & Giribet, Gonzalo" docDate="2023" docId="03D878433941FD248BB5FF52FAB4FC27" docLanguage="en" docName="zootaxa.5296.3.6.pdf" docOrigin="Zootaxa 5296 (3)" docSource="http://dx.doi.org/10.11646/zootaxa.5296.3.6" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Mesopsalis Bartel & Dunlop & Giribet 2023, gen. nov." docType="treatment" docUuid="83F375D4-A0DA-48B9-8F9F-335695979A5E" docUuidSource="ZooBank" docVersion="6" lastPageNumber="425" masterDocId="FFE1003B3945FD208B22FFC5FFC5FFCF" masterDocTitle="An unexpected diversity of Cyphophthalmi (Arachnida: Opiliones) in Upper Cretaceous Burmese amber" masterLastPageNumber="445" masterPageNumber="421" pageNumber="425" updateTime="1699510734804" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:titleInfo id="B32CFDE126F825663D28F14FE890D455">
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<mods:title id="898705CFEFDDCB6334BB58F952ECACD4">An unexpected diversity of Cyphophthalmi (Arachnida: Opiliones) in Upper Cretaceous Burmese amber</mods:title>
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<mods:name id="594658EDCD414ECD3AA940A60834DDE3" type="personal">
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<mods:namePart id="2ED83929B250F0DED45C9C095358C7F3">Bartel, Christian</mods:namePart>
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<mods:namePart id="BD6FB9BEEE6236190B89CD1D02318B7E">Dunlop, Jason A.</mods:namePart>
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<mods:name id="B47517BF5A12921DCB488E3C087E42D6" type="personal">
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<mods:namePart id="356573E14A1578A230EB40AD4D726216">Giribet, Gonzalo</mods:namePart>
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<mods:typeOfResource id="2A6A65F0DAACFE02B048C8252445159D">text</mods:typeOfResource>
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<mods:title id="A446C366CD33A8B235382DDC36A2CB19">Zootaxa</mods:title>
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<mods:part id="0AF488AC39EDD27065E3B6DDE489ED3E">
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<mods:date id="6F7D66FFAFF6A3FEBBCD23CED8046269">2023</mods:date>
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<mods:number id="AECD6734F5E6B759C70D01B15E8DC167">2023-05-29</mods:number>
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<mods:number id="50204D6612518B7CF314F86B32707D1B">5296</mods:number>
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<mods:url id="664BF0F504632936237293D99918BD10">http://dx.doi.org/10.11646/zootaxa.5296.3.6</mods:url>
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<mods:identifier id="0FD46362F573783072678FE092F64CFE" type="CLB-Dataset">53499</mods:identifier>
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<treatment id="03D878433941FD248BB5FF52FAB4FC27" ID-DOI="http://doi.org/10.5281/zenodo.7984043" ID-GBIF-Taxon="209663748" ID-Zenodo-Dep="7984043" LSID="urn:lsid:zoobank.org:act:83F375D4-A0DA-48B9-8F9F-335695979A5E" httpUri="http://treatment.plazi.org/id/03D878433941FD248BB5FF52FAB4FC27" lastPageNumber="425" pageId="4" pageNumber="425">
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<subSubSection id="C36B9ADE3941FD248BB5FF52FCB6FF3C" pageId="4" pageNumber="425" type="nomenclature">
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<paragraph id="8BCEC9553941FD248BB5FF52FE2CFF7E" blockId="4.[151,489,151,178]" box="[151,489,151,178]" pageId="4" pageNumber="425">
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<heading id="D0867E393941FD248BB5FF52FE2CFF7E" bold="true" box="[151,489,151,178]" fontSize="11" level="1" pageId="4" pageNumber="425" reason="1">
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<emphasis id="B90515473941FD248BB5FF52FE2CFF7E" bold="true" box="[151,489,151,178]" pageId="4" pageNumber="425">
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Genus
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<taxonomicName id="4C71B2D63941FD248BCCFF52FEB1FF7D" ID-CoL="BHZM9" authority="Bartel & Dunlop & Giribet, 2023" authorityName="Bartel & Dunlop & Giribet" authorityYear="2023" box="[238,372,151,178]" class="Arachnida" family="Stylocellidae" genus="Mesopsalis" kingdom="Animalia" order="Opiliones" pageId="4" pageNumber="425" phylum="Arthropoda" rank="genus" status="gen. nov.">
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<emphasis id="B90515473941FD248BCCFF52FEB1FF7D" bold="true" box="[238,372,151,178]" italics="true" pageId="4" pageNumber="425">Mesopsalis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A236A83C3941FD248A59FF52FE2CFF7E" box="[379,489,151,177]" pageId="4" pageNumber="425" rank="genus">gen. nov.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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<paragraph id="8BCEC9553941FD248BB5FF1EFCB6FF3C" blockId="4.[151,883,219,243]" box="[151,883,219,243]" pageId="4" pageNumber="425">
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<uri id="FFE0C5573941FD248BB5FF1EFCB6FF3C" box="[151,883,219,243]" pageId="4" pageNumber="425">
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urn:lsid:zoobank.org:act:
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<uuid id="FFD7F3803941FD248AADFF1EFCB6FF3C" box="[399,883,219,243]" pageId="4" pageNumber="425">83F375D4-A0DA-48B9-8F9F-335695979A5E</uuid>
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</uri>
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="C36B9ADE3941FD248BB5FEE7FD46FEF3" box="[151,643,289,316]" pageId="4" pageNumber="425" type="type_taxon">
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<paragraph id="8BCEC9553941FD248BB5FEE7FD46FEF3" blockId="4.[151,1437,289,1000]" box="[151,643,289,316]" pageId="4" pageNumber="425">
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<emphasis id="B90515473941FD248BB5FEE7FEF7FEF4" bold="true" box="[151,306,289,316]" pageId="4" pageNumber="425">
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<typeStatus id="54CA77F73941FD248BB5FEE7FF17FEF3" box="[151,210,290,316]" pageId="4" pageNumber="425">Type</typeStatus>
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species.
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</emphasis>
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<taxonomicName id="4C71B2D63941FD248A1BFEE7FDE0FEF3" ID-CoL="BHZMD" authority="Bartel & Dunlop & Giribet, 2023" authorityName="Bartel & Dunlop & Giribet" authorityYear="2023" box="[313,549,290,316]" class="Arachnida" family="Stylocellidae" genus="Mesopsalis" kingdom="Animalia" order="Opiliones" pageId="4" pageNumber="425" phylum="Arthropoda" rank="species" species="oblongus" status="sp. nov.">
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<emphasis id="B90515473941FD248A1BFEE7FDE0FEF3" box="[313,549,290,316]" italics="true" pageId="4" pageNumber="425">Mesopsalis oblongus</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A236A83C3941FD24890EFEE7FD46FEF3" box="[556,643,290,316]" pageId="4" pageNumber="425" rank="species">sp. nov.</taxonomicNameLabel>
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</paragraph>
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||
</subSubSection>
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||
<subSubSection id="C36B9ADE3941FD248BE5FE83FE47FE4B" pageId="4" pageNumber="425" type="etymology">
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||
<paragraph id="8BCEC9553941FD248BE5FE83FE47FE4B" blockId="4.[151,1437,289,1000]" pageId="4" pageNumber="425">
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<emphasis id="B90515473941FD248BE5FE83FE8BFEAF" bold="true" box="[199,334,326,352]" pageId="4" pageNumber="425">Etymology.</emphasis>
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Named after its presence in the Mesozoic and its similarities to the modern genus
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<taxonomicName id="4C71B2D63941FD248E36FE83FA50FEAF" authorityName="Thorell" authorityYear="1882" box="[1300,1429,326,352]" class="Arachnida" family="Stylocellidae" genus="Leptopsalis" kingdom="Animalia" order="Opiliones" pageId="4" pageNumber="425" phylum="Arthropoda" rank="genus">
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<emphasis id="B90515473941FD248E36FE83FA50FEAF" box="[1300,1429,326,352]" italics="true" pageId="4" pageNumber="425">Leptopsalis</emphasis>
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</taxonomicName>
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. Masculine in gender.
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</paragraph>
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</subSubSection>
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<subSubSection id="C36B9ADE3941FD248BE5FE48FD43FDDB" pageId="4" pageNumber="425" type="diagnosis">
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<paragraph id="8BCEC9553941FD248BE5FE48FD43FDDB" blockId="4.[151,1437,289,1000]" pageId="4" pageNumber="425">
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<emphasis id="B90515473941FD248BE5FE48FE87FE68" bold="true" box="[199,322,397,423]" pageId="4" pageNumber="425">Diagnosis.</emphasis>
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Relatively large and oval body with a markedly subtriangular anterior margin. Elongated ozophores in the
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<typeStatus id="54CA77F73941FD248BF8FE77FECFFE03" box="[218,266,434,460]" pageId="4" pageNumber="425">type</typeStatus>
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2 position. Eyes present. Chelicerae rather small and sparsely granular. Legs relatively short and granular. Leg tarsi undivided, bearing a single smooth claw. Coxa I free, coxae II–III fused. Opisthosomal sternal sulci mostly straight and parallel. Anal plate unmodified.
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</paragraph>
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</subSubSection>
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<subSubSection id="C36B9ADE3941FD248BE5FDDBFAB4FC27" pageId="4" pageNumber="425" type="discussion">
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||
<paragraph id="8BCEC9553941FD248BE5FDDBFAB4FC27" blockId="4.[151,1437,289,1000]" pageId="4" pageNumber="425">
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||
<emphasis id="B90515473941FD248BE5FDDBFEFEFDF7" bold="true" box="[199,315,542,568]" pageId="4" pageNumber="425">Remarks.</emphasis>
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The
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<typeStatus id="54CA77F73941FD248A5AFDDBFE1FFDF7" box="[376,474,542,568]" pageId="4" pageNumber="425" type="holotype">holotype</typeStatus>
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of
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<taxonomicName id="4C71B2D63941FD248920FDDBFD35FDF7" authority="Bartel & Dunlop & Giribet, 2023" authorityName="Bartel & Dunlop & Giribet" authorityYear="2023" box="[514,752,542,568]" class="Arachnida" family="Stylocellidae" genus="Mesopsalis" kingdom="Animalia" order="Opiliones" pageId="4" pageNumber="425" phylum="Arthropoda" rank="species" species="oblongus" status="sp. nov.">
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<emphasis id="B90515473941FD248920FDDBFD35FDF7" box="[514,752,542,568]" italics="true" pageId="4" pageNumber="425">Mesopsalis oblongus</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A236A83C3941FD2489DAFDDBFC94FDF7" box="[760,849,542,568]" pageId="4" pageNumber="425" rank="species">sp. nov.</taxonomicNameLabel>
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(MB.A.4456;
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<figureCitation id="134AD5D03941FD2488DBFDDBFBF8FDF7" box="[1017,1085,542,568]" captionStart="FIGURE 2" captionStartId="5.[151,250,1819,1843]" captionTargetBox="[151,1435,597,1796]" captionTargetId="figure-225@5.[151,1435,597,1796]" captionTargetPageId="5" captionText="FIGURE 2. Mesopsalis oblongus gen. et sp. nov., female holotype (MB.A.4456).A. Camera lucida drawing of whole specimen, dorsal view. B. Micro-CT scan of whole specimen, dorsal view. C. Same, lateral view. D. Same, ventral view. Abbreviations: ap, anal plate; ch, chelicerae; ey, eye lens; fe, femur; mt, metatarsus; oz, ozophore; pa, patella; pp, pedipalp; ta, tarsus; ti, tibia; tr, trochanter; legs numbered from I–IV. Scale bars equal 1 mm (A) and 0.5 mm (B–D)." figureDoi="http://doi.org/10.5281/zenodo.7984137" httpUri="https://zenodo.org/record/7984137/files/figure.png" pageId="4" pageNumber="425">Fig. 2</figureCitation>
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) is very likely an adult female due to the absence of an adenostyle on tarsus IV, its relatively large size and the open gonostome. The habitus of this specimen with its elongated ozophores (
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<figureCitation id="134AD5D03941FD2489A8FDA3FCC6FD4F" box="[650,771,614,640]" captionStart="FIGURE 2" captionStartId="5.[151,250,1819,1843]" captionTargetBox="[151,1435,597,1796]" captionTargetId="figure-225@5.[151,1435,597,1796]" captionTargetPageId="5" captionText="FIGURE 2. Mesopsalis oblongus gen. et sp. nov., female holotype (MB.A.4456).A. Camera lucida drawing of whole specimen, dorsal view. B. Micro-CT scan of whole specimen, dorsal view. C. Same, lateral view. D. Same, ventral view. Abbreviations: ap, anal plate; ch, chelicerae; ey, eye lens; fe, femur; mt, metatarsus; oz, ozophore; pa, patella; pp, pedipalp; ta, tarsus; ti, tibia; tr, trochanter; legs numbered from I–IV. Scale bars equal 1 mm (A) and 0.5 mm (B–D)." figureDoi="http://doi.org/10.5281/zenodo.7984137" httpUri="https://zenodo.org/record/7984137/files/figure.png" pageId="4" pageNumber="425">Fig. 2A–B</figureCitation>
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) appears to be similar to that of the
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<typeStatus id="54CA77F73941FD248FB8FDA3FB39FD4F" box="[1178,1276,614,640]" pageId="4" pageNumber="425" type="holotype">holotype</typeStatus>
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of
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<taxonomicName id="4C71B2D63941FD248E00FDA3FEE0FD6B" authorityName="Poinar" authorityYear="2008" class="Arachnida" family="Stylocellidae" genus="Palaeosiro" kingdom="Animalia" order="Opiliones" pageId="4" pageNumber="425" phylum="Arthropoda" rank="species" species="burmanicum">
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<emphasis id="B90515473941FD248E00FDA3FEE0FD6B" italics="true" pageId="4" pageNumber="425">Palaeosiro burmanicum</emphasis>
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</taxonomicName>
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. However, the new fossil is nearly three times larger and has an eye lens in front of each ozophore, which is lacking in
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<taxonomicName id="4C71B2D63941FD248A54FD6AFDE5FD07" authorityName="Poinar" authorityYear="2008" box="[374,544,686,712]" class="Arachnida" family="Stylocellidae" genus="Palaeosiro" kingdom="Animalia" order="Opiliones" pageId="4" pageNumber="425" phylum="Arthropoda" rank="species" species="burmanicum">
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<emphasis id="B90515473941FD248A54FD6AFDE5FD07" box="[374,544,686,712]" italics="true" pageId="4" pageNumber="425">P. burmanicum</emphasis>
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</taxonomicName>
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. The families
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<taxonomicName id="4C71B2D63941FD2489E6FD6BFCF8FD07" authorityName="Shear" authorityYear="1980" box="[708,829,686,712]" class="Arachnida" family="Ogoveidae" kingdom="Animalia" order="Opiliones" pageId="4" pageNumber="425" phylum="Arthropoda" rank="family">Ogoveidae</taxonomicName>
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and
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<taxonomicName id="4C71B2D63941FD248857FD6BFC26FD07" authorityName="Shear" authorityYear="1980" box="[885,995,686,712]" class="Arachnida" family="Pettalidae" kingdom="Animalia" order="Opiliones" pageId="4" pageNumber="425" phylum="Arthropoda" rank="family">Pettalidae</taxonomicName>
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can be excluded as this fossil does not show any of the typical characters like a longitudinal median furrow in the scutum completum, a large opisthosomal ventral apophysis, upwards facing ozophores and a strongly modified anal region. The free coxa I, fused coxae II–III (
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<figureCitation id="134AD5D03941FD248BC1FCDFFEFFFCFB" box="[227,314,794,820]" captionStart="FIGURE 2" captionStartId="5.[151,250,1819,1843]" captionTargetBox="[151,1435,597,1796]" captionTargetId="figure-225@5.[151,1435,597,1796]" captionTargetPageId="5" captionText="FIGURE 2. Mesopsalis oblongus gen. et sp. nov., female holotype (MB.A.4456).A. Camera lucida drawing of whole specimen, dorsal view. B. Micro-CT scan of whole specimen, dorsal view. C. Same, lateral view. D. Same, ventral view. Abbreviations: ap, anal plate; ch, chelicerae; ey, eye lens; fe, femur; mt, metatarsus; oz, ozophore; pa, patella; pp, pedipalp; ta, tarsus; ti, tibia; tr, trochanter; legs numbered from I–IV. Scale bars equal 1 mm (A) and 0.5 mm (B–D)." figureDoi="http://doi.org/10.5281/zenodo.7984137" httpUri="https://zenodo.org/record/7984137/files/figure.png" pageId="4" pageNumber="425">Fig. 2D</figureCitation>
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) and the conical anterior end of the carapace, in combination with an unmodified anal plate, indicate affinities to the family
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<taxonomicName id="4C71B2D63941FD248AB0FCFBFDEDFC97" authorityName="Hansen & Sorensen" authorityYear="1904" box="[402,552,830,856]" class="Arachnida" family="Stylocellidae" kingdom="Animalia" order="Opiliones" pageId="4" pageNumber="425" phylum="Arthropoda" rank="family">Stylocellidae</taxonomicName>
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. The conical anterior margin of the body (
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<figureCitation id="134AD5D03941FD2488D7FCFBFB8FFC97" box="[1013,1098,830,856]" captionStart="FIGURE 2" captionStartId="5.[151,250,1819,1843]" captionTargetBox="[151,1435,597,1796]" captionTargetId="figure-225@5.[151,1435,597,1796]" captionTargetPageId="5" captionText="FIGURE 2. Mesopsalis oblongus gen. et sp. nov., female holotype (MB.A.4456).A. Camera lucida drawing of whole specimen, dorsal view. B. Micro-CT scan of whole specimen, dorsal view. C. Same, lateral view. D. Same, ventral view. Abbreviations: ap, anal plate; ch, chelicerae; ey, eye lens; fe, femur; mt, metatarsus; oz, ozophore; pa, patella; pp, pedipalp; ta, tarsus; ti, tibia; tr, trochanter; legs numbered from I–IV. Scale bars equal 1 mm (A) and 0.5 mm (B–D)." figureDoi="http://doi.org/10.5281/zenodo.7984137" httpUri="https://zenodo.org/record/7984137/files/figure.png" pageId="4" pageNumber="425">Fig. 2B</figureCitation>
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) of the fossil resembles that of the modern species
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<taxonomicName id="4C71B2D63941FD248A54FCA7FD38FCB3" authority="Giribet, 2002" authorityName="Giribet" authorityYear="2002" box="[374,765,866,892]" class="Arachnida" family="Stylocellidae" genus="Leptopsalis" kingdom="Animalia" order="Opiliones" pageId="4" pageNumber="425" phylum="Arthropoda" rank="species" species="ramblae">
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<emphasis id="B90515473941FD248A54FCA7FD99FCB3" box="[374,604,866,892]" italics="true" pageId="4" pageNumber="425">Leptopsalis ramblae</emphasis>
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<bibRefCitation id="EFE0B4A43941FD248946FCA7FD38FCB3" author="Giribet, G." box="[612,765,866,892]" pageId="4" pageNumber="425" pagination="1 - 9" refId="ref13000" refString="Giribet, G. (2002) Stylocellus ramblae, a new stylocellid (Opiliones, Cyphophthalmi) from Singapore, with a discussion of the family Stylocellidae. The Journal of Arachnology, 30, 1 - 9. https: // doi. org / 10.1636 / 0161 - 8202 (2002) 030 [0001: sranso] 2.0. co; 2" type="journal article" year="2002">Giribet, 2002</bibRefCitation>
|
||
</taxonomicName>
|
||
. The presence of eyes, slightly curved ventral opisthosomal sulci and the reduced cheliceral ornamentation is also shared between the fossil and specimens of the modern genus
|
||
<taxonomicName id="4C71B2D63941FD248BB5FC6FFE7BFC0B" authority="Thorell, 1882" authorityName="Thorell" authorityYear="1882" box="[151,446,938,964]" class="Arachnida" family="Stylocellidae" genus="Leptopsalis" kingdom="Animalia" order="Opiliones" pageId="4" pageNumber="425" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B90515473941FD248BB5FC6FFEDDFC0B" box="[151,280,938,964]" italics="true" pageId="4" pageNumber="425">Leptopsalis</emphasis>
|
||
<bibRefCitation id="EFE0B4A43941FD248A03FC6FFE7BFC0B" author="Thorell, T." box="[289,446,938,964]" pageId="4" pageNumber="425" pagination="21 - 69" refId="ref14579" refString="Thorell, T. (1882) Descrizione di alcuni Aracnidi inferiori dell' Arcipelago Malese. Annali del Museo Civico di Storia Naturale di Genova, 18, 21 - 69." type="journal article" year="1882">Thorell, 1882</bibRefCitation>
|
||
</taxonomicName>
|
||
. However, long and relatively thin conical ozophores cannot be observed in any of the extant
|
||
<taxonomicName id="4C71B2D63941FD248BC1FC0BFE06FC27" box="[227,451,974,1000]" class="Arachnida" family="Stylocellidae" genus="Leptopsalis" kingdom="Animalia" order="Opiliones" pageId="4" pageNumber="425" phylum="Arthropoda" rank="species" species="undetermined">
|
||
<emphasis id="B90515473941FD248BC1FC0BFEA1FC27" box="[227,356,974,1000]" italics="true" pageId="4" pageNumber="425">Leptopsalis</emphasis>
|
||
species.
|
||
</taxonomicName>
|
||
Based on this unique combination of characters, the fossil is placed in a new genus.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |