145 lines
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145 lines
17 KiB
XML
<document id="6D1BAAF5F8F300975F805BA6991DA605" ID-DOI="10.24199/j.mmv.2006.63.17" ID-ISSN="1447-2554" ID-Zenodo-Dep="12210410" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1718991714234" checkinUser="felipe" docAuthor="Sandford, Andrew C. & Holloway, David J." docDate="2006" docId="9C6887D7FF9B3F106683FF60AE01FA59" docLanguage="en" docName="MemMusVictoria.63.2.215-255.pdf" docOrigin="Memoirs of Museum Victoria 63 (2)" docSource="https://museumsvictoria.com.au/collections-research/journals/memoirs-of-museum-victoria/volume-63-issue-2-2006/pages-215-255/" docStyle="DocumentStyle:5B3B5C052A93BFEEE334AD6097A94E45.2:MemMusVictoria.2003-.journal_article.type1" docStyleId="5B3B5C052A93BFEEE334AD6097A94E45" docStyleName="MemMusVictoria.2003-.journal_article.type1" docStyleVersion="2" docTitle="Ivops Sandford & Holloway, 2006, gen. nov." docType="treatment" docVersion="3" lastPageNumber="233" masterDocId="6051FFAFFF893F02660FFF86AF6EFF93" masterDocTitle="Early Silurian phacopide trilobites from central Victoria, Australia" masterLastPageNumber="255" masterPageNumber="215" pageNumber="233" updateTime="1719003769957" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
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<mods:titleInfo id="ED2C894E9D14488D2DCC9920EC7CBA2A">
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<mods:title id="B0CC8DAFA076584702E24B4CA34DE3E5">Early Silurian phacopide trilobites from central Victoria, Australia</mods:title>
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</mods:titleInfo>
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<mods:name id="4A08BFEBCFFA143CACC8EB38DD7C8CC3" type="personal">
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<mods:namePart id="165F30263D359B76CC76607E57395500">Sandford, Andrew C.</mods:namePart>
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<mods:name id="CDD1F017EC602675E7B6AB05A7030201" type="personal">
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<mods:roleTerm id="BCE8A0FF5F02664E0F71E4BE9DF38466">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="E13F10304F6A846D408679AB5EB88622">Holloway, David J.</mods:namePart>
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<mods:typeOfResource id="D5F4E0E777CDA7EA1ADE43523258F562">text</mods:typeOfResource>
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<mods:title id="8976D2CB1503AC4987D8284368807285">Memoirs of Museum Victoria</mods:title>
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</mods:titleInfo>
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<mods:part id="F833F1FF749429578040FC3E06CE0715">
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<mods:date id="FF1945FB61474E8147A53C44685916BD">2006</mods:date>
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<mods:detail id="0555DBAEF58283D343231CB961202788" type="pubDate">
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<mods:number id="4D42264FA2017B2D09E38F2C687AC818">2006-12-31</mods:number>
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<mods:detail id="A1483B0948BC577099208E2FEF8D2752" type="volume">
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<mods:number id="DF2230BDF4658528A39405EBBD3DF7EE">63</mods:number>
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<mods:detail id="198D61E912BD9AC70152AE0917EBFD98" type="issue">
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<mods:number id="548945F6DE417FD8156754E76FA6DEB0">2</mods:number>
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<mods:start id="D5D0BC3CD86805908AA93A9C488513A8">215</mods:start>
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<mods:end id="2364EF01C4C59133656D64823DA50ABC">255</mods:end>
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<mods:location id="75470A668C3E9C4439FCF2C01CF6D44C">
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<mods:url id="6CED996062C0123F94941D96636D044C">https://museumsvictoria.com.au/collections-research/journals/memoirs-of-museum-victoria/volume-63-issue-2-2006/pages-215-255/</mods:url>
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<mods:classification id="0726811BD570F59820D0E6C87D440823">journal article</mods:classification>
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<mods:identifier id="1CDCC34BFB123E4E81A27C5BEA0934C7" type="DOI">10.24199/j.mmv.2006.63.17</mods:identifier>
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<mods:identifier id="1903073ED8CD873BD2A4E0F427364E46" type="ISSN">1447-2554</mods:identifier>
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<mods:identifier id="3E12D82C882BC4C02256E6F5B82C92E9" type="Zenodo-Dep">12210410</mods:identifier>
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<treatment id="9C6887D7FF9B3F106683FF60AE01FA59" ID-DOI="http://doi.org/10.5281/zenodo.12210957" ID-Zenodo-Dep="12210957" LSID="urn:lsid:plazi:treatment:9C6887D7FF9B3F106683FF60AE01FA59" httpUri="http://treatment.plazi.org/id/9C6887D7FF9B3F106683FF60AE01FA59" lastPageNumber="233" pageId="18" pageNumber="233">
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<subSubSection id="5CDB654AFF9B3F106683FF60AE4AFF68" box="[140,292,230,251]" pageId="18" pageNumber="233" type="nomenclature">
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<paragraph id="147E36C1FF9B3F106683FF60AE4AFF68" blockId="18.[140,292,230,251]" box="[140,292,230,251]" pageId="18" pageNumber="233">
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<heading id="4F3681ADFF9B3F106683FF60AE4AFF68" box="[140,292,230,251]" fontSize="9" level="2" pageId="18" pageNumber="233" reason="5">
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<taxonomicName id="D3C14D42FF9B3F106683FF60AFAAFF68" authorityName="Sandford & Holloway" authorityYear="2006" box="[140,196,230,251]" class="Trilobita" family="Phacopidae" genus="Ivops" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phacopida" pageId="18" pageNumber="233" phylum="Arthropoda" rank="genus" status="gen. nov.">
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<emphasis id="26B5EAD3FF9B3F106683FF60AFAAFF68" bold="true" box="[140,196,230,251]" italics="true" pageId="18" pageNumber="233">Ivops</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="3D8657A8FF9B3F1066C6FF60AE4AFF68" box="[201,292,230,251]" pageId="18" pageNumber="233" rank="genus">gen. nov.</taxonomicNameLabel>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="5CDB654AFF9B3F106683FE94AE01FA59" pageId="18" pageNumber="233" type="materials_examined">
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<paragraph id="147E36C1FF9B3F106683FE94AE95FED0" blockId="18.[140,771,273,323]" pageId="18" pageNumber="233">
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<materialsCitation id="A4A93C9CFF9B3F106683FE94AE99FED0" location="Bylands Siltstone" pageId="18" pageNumber="233" specimenCount="1" stateProvince="Victoria" typeStatus="holotype">
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<emphasis id="26B5EAD3FF9B3F106683FE94AEB1FEB5" box="[140,479,273,295]" italics="true" pageId="18" pageNumber="233">
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<typeStatus id="CB7A8863FF9B3F106683FE94AFD3FEB4" box="[140,189,274,295]" pageId="18" pageNumber="233">Type</typeStatus>
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species.
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<taxonomicName id="D3C14D42FF9B3F106729FE94AEB1FEB5" authorityName="Sandford & Holloway" authorityYear="2006" box="[294,479,273,295]" class="Trilobita" family="Phacopidae" genus="Ivops" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phacopida" pageId="18" pageNumber="233" phylum="Arthropoda" rank="species" species="wallanensis" status="sp. nov.">Ivops wallanensis</taxonomicName>
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</emphasis>
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<taxonomicNameLabel id="3D8657A8FF9B3F1067E4FE97AD50FEB5" box="[491,574,273,294]" pageId="18" pageNumber="233" rank="species">sp. nov.</taxonomicNameLabel>
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from the
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<location id="111E601AFF9B3F1064BCFE97AF8FFED0" LSID="urn:lsid:plazi:treatment:9C6887D7FF9B3F106683FF60AE01FA59:111E601AFF9B3F1064BCFE97AF8FFED0" name="Bylands Siltstone" pageId="18" pageNumber="233" stateProvince="Victoria">Bylands Siltstone</location>
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(Wenlock), central
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<collectingRegion id="D605F823FF9B3F1067ACFEABAE99FED0" box="[419,503,301,323]" country="Australia" name="Victoria" pageId="18" pageNumber="233">Victoria</collectingRegion>
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</materialsCitation>
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.
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</paragraph>
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<paragraph id="147E36C1FF9B3F106683FEDCAD0BFE1F" blockId="18.[140,770,345,396]" pageId="18" pageNumber="233">
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<emphasis id="26B5EAD3FF9B3F106683FEDCAE08FEFC" box="[140,358,345,367]" italics="true" pageId="18" pageNumber="233">Derivation of name.</emphasis>
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After the late Professor Ivo Chlupáč, Charles University,
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<collectingRegion id="D605F823FF9B3F10675CFEF0AEF3FE18" box="[339,413,374,395]" country="Czech Republic" name="Praha" pageId="18" pageNumber="233">Prague</collectingRegion>
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. Gender masculine.
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</paragraph>
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<paragraph id="147E36C1FF9B3F106683FE24AEDBFC9D" blockId="18.[140,771,417,782]" pageId="18" pageNumber="233">
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<emphasis id="26B5EAD3FF9B3F106683FE24AF9DFE24" box="[140,243,418,439]" italics="true" pageId="18" pageNumber="233">Diagnosis</emphasis>
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. L1 with lateral node very small and depressed, L2 short (exsag.). S2 containing deep pit adjacent to axial furrow, forming a notch in side of glabella. Anterior branch of S3 long, subparallel to axial furrow. Front of glabella overhanging anterior border. Eye relatively small, length (exsag.) approximately 30% sagittal cephalic length, its lower edge lying just above lateral border furrow anteriorly, visual surface without raised sclera. Lateral border furrow on fixigena continuous with posterior border furrow. Vincular furrow with weak notching laterally. Pygidium with weakly tapering axis constituting about 30% maximum pygidial width anteriorly, and with deep pleural and shallow but distinct interpleural furrows. Dense sculpture of bimodal tubercles on glabella.
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</paragraph>
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<paragraph id="147E36C1FF9B3F106683FCA2AE01FA59" blockId="18.[140,771,804,1482]" pageId="18" pageNumber="233">
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<emphasis id="26B5EAD3FF9B3F106683FCA2AF8CFCAA" box="[140,226,804,825]" italics="true" pageId="18" pageNumber="233">Remarks</emphasis>
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.
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<taxonomicName id="D3C14D42FF9B3F1066E0FCA2AE4AFCAA" authorityName="Sandford & Holloway" authorityYear="2006" box="[239,292,804,825]" class="Trilobita" family="Phacopidae" genus="Ivops" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phacopida" pageId="18" pageNumber="233" phylum="Arthropoda" rank="genus">
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<emphasis id="26B5EAD3FF9B3F1066E0FCA2AE4AFCAA" box="[239,292,804,825]" italics="true" pageId="18" pageNumber="233">Ivops</emphasis>
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</taxonomicName>
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is known only from the
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<typeStatus id="CB7A8863FF9B3F106417FCA2AD2CFCAA" box="[536,578,804,825]" pageId="18" pageNumber="233">type</typeStatus>
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species. The genus closely resembles
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<taxonomicName id="D3C14D42FF9B3F106736FCC7AEF1FCC5" authorityName=", Campbell" authorityYear="1967" box="[313,415,833,854]" class="Trilobita" family="Phacopidae" genus="Ananaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phacopida" pageId="18" pageNumber="233" phylum="Arthropoda" rank="genus">
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<emphasis id="26B5EAD3FF9B3F106736FCC7AEF1FCC5" box="[313,415,833,854]" italics="true" pageId="18" pageNumber="233">Ananaspis</emphasis>
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</taxonomicName>
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in glabellar and pygidial proportions, the short L2 (exsagittal length 80% that of L3), the continuity of the posterior border furrow with the lateral border furrow on the fixigena, the weak notching in the lateral part of the vincular furrow, and the depth of the pygidial pleural and interpleural furrows. The relatively small eye with its lower edge placed a short distance above the lateral border furrow and with a small number of lenses in the dorsoventral files are features comparable with species such as
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<taxonomicName id="D3C14D42FF9B3F106753FBA3AED5FBA9" baseAuthorityName="Hawle and Corda" baseAuthorityYear="1847" box="[348,443,1061,1082]" class="Trilobita" family="Phacopidae" genus="Ananaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phacopida" pageId="18" pageNumber="233" phylum="Arthropoda" rank="species" species="aspera">
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<emphasis id="26B5EAD3FF9B3F106753FBA3AED5FBA9" box="[348,443,1061,1082]" italics="true" pageId="18" pageNumber="233">A. aspera</emphasis>
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</taxonomicName>
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and
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<taxonomicName id="D3C14D42FF9B3F1067E3FBA3AD1FFBA9" box="[492,625,1061,1082]" class="Trilobita" family="Phacopidae" genus="Ananaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phacopida" pageId="18" pageNumber="233" phylum="Arthropoda" rank="species" species="calvescens">
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<emphasis id="26B5EAD3FF9B3F1067E3FBA3AD1FFBA9" box="[492,625,1061,1082]" italics="true" pageId="18" pageNumber="233">A. calvescens</emphasis>
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</taxonomicName>
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. Despite these shared features
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<taxonomicName id="D3C14D42FF9B3F10673CFBC4AE06FBC4" authorityName="Sandford & Holloway" authorityYear="2006" box="[307,360,1090,1111]" class="Trilobita" family="Phacopidae" genus="Ivops" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phacopida" pageId="18" pageNumber="233" phylum="Arthropoda" rank="genus">
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<emphasis id="26B5EAD3FF9B3F10673CFBC4AE06FBC4" box="[307,360,1090,1111]" italics="true" pageId="18" pageNumber="233">Ivops</emphasis>
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</taxonomicName>
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is unlike
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<taxonomicName id="D3C14D42FF9B3F1067D3FBC4AD2CFBC4" authorityName=", Campbell" authorityYear="1967" box="[476,578,1090,1111]" class="Trilobita" family="Phacopidae" genus="Ananaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phacopida" pageId="18" pageNumber="233" phylum="Arthropoda" rank="genus">
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<emphasis id="26B5EAD3FF9B3F1067D3FBC4AD2CFBC4" box="[476,578,1090,1111]" italics="true" pageId="18" pageNumber="233">Ananaspis</emphasis>
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</taxonomicName>
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and other known Silurian phacopines in that S2 is deep laterally and contains an apodemal pit where it meets the axial furrow. This feature contrasts with the more typical phacopine morphology of a shallow S2 that is isolated from the axial furrow. A laterally deep S2 similar to that of
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<taxonomicName id="D3C14D42FF9B3F106750FB57AEFAFB75" authorityName="Sandford & Holloway" authorityYear="2006" box="[351,404,1233,1254]" class="Trilobita" family="Phacopidae" genus="Ivops" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phacopida" pageId="18" pageNumber="233" phylum="Arthropoda" rank="genus">
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<emphasis id="26B5EAD3FF9B3F106750FB57AEFAFB75" box="[351,404,1233,1254]" italics="true" pageId="18" pageNumber="233">Ivops</emphasis>
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</taxonomicName>
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is present in ʻ
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<taxonomicName id="D3C14D42FF9B3F106428FB56AD7DFA91" authority="Chatterton, Johnson and Campbell, 1979" authorityName="Chatterton, Johnson and Campbell" authorityYear="1979" class="Trilobita" family="Phacopidae" genus="Paciphacops" kingdom="Animalia" order="Phacopida" pageId="18" pageNumber="233" phylum="Arthropoda" rank="species" species="microps">
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<emphasis id="26B5EAD3FF9B3F106428FB56ADC8FB76" box="[551,678,1232,1253]" italics="true" pageId="18" pageNumber="233">Paciphacops</emphasis>
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ʼ
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<emphasis id="26B5EAD3FF9B3F1064BBFB57AC6CFB75" box="[692,770,1233,1254]" italics="true" pageId="18" pageNumber="233">microps</emphasis>
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<bibRefCitation id="70504B30FF9B3F106683FB6BAD7DFA91" author="Chatterton, B. D. E. & Johnson, B. D. & Campbell, K. S. W." box="[140,531,1261,1283]" pageId="18" pageNumber="233" pagination="799 - 837" refId="ref29291" refString="Chatterton, B. D. E. Johnson, B. D. and Campbell, K. S. W. 1979. Silicified Lower Devonian trilobites from New South Wales. Palaeontology 22: 799 - 837." type="journal article" year="1979">Chatterton, Johnson and Campbell, 1979</bibRefCitation>
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</taxonomicName>
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(
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<typeStatus id="CB7A8863FF9B3F106411FB6BAD24FA91" box="[542,586,1261,1282]" pageId="18" pageNumber="233">type</typeStatus>
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species of
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<taxonomicName id="D3C14D42FF9B3F1064BFFB6BAED1FA8D" authority="Ramskold and Werdelin, 1991" authorityName="Ramskold and Werdelin" authorityYear="1991" class="Trilobita" family="Phacopidae" genus="Kainops" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phacopida" pageId="18" pageNumber="233" phylum="Arthropoda" rank="genus">
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<emphasis id="26B5EAD3FF9B3F1064BFFB6BAC6CFA91" box="[688,770,1261,1282]" italics="true" pageId="18" pageNumber="233">Kainops</emphasis>
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<bibRefCitation id="70504B30FF9B3F106683FA8FAED1FA8D" author="Ramskold, L. & Werdelin, L." box="[140,447,1289,1311]" pageId="18" pageNumber="233" pagination="29 - 74" refId="ref31399" refString="Ramskold, L. and Werdelin, L. 1991. The phylogeny and evolution of some phacopid trilobites. Cladistics 7: 29 - 74." type="journal article" year="1991">Ramsköld and Werdelin, 1991</bibRefCitation>
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</taxonomicName>
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), from the upper Lochkovian to lower Pragian of
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<collectingRegion id="D605F823FF9B3F106736FAA0AE80FAAF" box="[313,494,1318,1340]" country="Australia" name="New South Wales" pageId="18" pageNumber="233">New South Wales</collectingRegion>
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, but in that species S2 does not contain an apodemal pit and does not meet the axial furrow in all specimens. The relatively small eye of
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<taxonomicName id="D3C14D42FF9B3F106421FAE6AD0DFAE6" authorityName="Sandford & Holloway" authorityYear="2006" box="[558,611,1376,1397]" class="Trilobita" family="Phacopidae" genus="Ivops" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phacopida" pageId="18" pageNumber="233" phylum="Arthropoda" rank="genus">
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<emphasis id="26B5EAD3FF9B3F106421FAE6AD0DFAE6" box="[558,611,1376,1397]" italics="true" pageId="18" pageNumber="233">Ivops</emphasis>
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</taxonomicName>
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(the smallest of known Wenlock phacopids) is interpreted as an adaptation to a deep-water environment;see discussion in remarks on
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<taxonomicName id="D3C14D42FF9B3F106480FA1EAFB8FA59" authorityName="Sandford & Holloway" authorityYear="2006" class="Trilobita" family="Acastidae" genus="Berylacaste" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phacopida" pageId="18" pageNumber="233" phylum="Arthropoda" rank="species" species="berylae" status="gen. et sp. nov.">
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<emphasis id="26B5EAD3FF9B3F106480FA1EAFB8FA59" italics="true" pageId="18" pageNumber="233">Berylacaste berylae</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="3D8657A8FF9B3F1066D4FA33AE01FA59" box="[219,367,1461,1482]" pageId="18" pageNumber="233" rank="species">gen. et sp. nov.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |