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<document id="2152C28BBA62B12D31C1B7CA1DFC3AEB" ID-DOI="10.11646/zootaxa.3641.1.2" ID-GBIF-Dataset="2a7ba554-14c6-43ae-a049-c7b268418c4b" ID-ISSN="1175-5326" ID-Zenodo-Dep="283685" ID-ZooBank="5CCC816C-F35C-426B-BAF8-A9202CE04C7B" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460594816885" checkinUser="plazi" docAuthor="Carriol, René-Pierre" docDate="2013" docId="03AC722E3E503C20FF38E942815CFEF8" docLanguage="en" docName="zt03641p030.pdf" docOrigin="Zootaxa 3641 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Arcoscalpellum concavitectum Carriol, 2013, sp. nov." docType="treatment" docVersion="5" lastPageNumber="27" masterDocId="FF950A563E553C26FFAFE85C805BFFE4" masterDocTitle="Two new species of scalpelliform barnacles (Cirripedia: Thoracica) from the Plio-Pleistocene of Cotentin, northwest France" masterLastPageNumber="30" masterPageNumber="21" pageNumber="26" updateTime="1698326578726" updateUser="plazi">
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<mods:title id="E2E478BBCAAD33AD5F285BE7345C4D7D">Two new species of scalpelliform barnacles (Cirripedia: Thoracica) from the Plio-Pleistocene of Cotentin, northwest France</mods:title>
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<mods:name id="0D0B0894DC262BA41533E9EC0E274724" type="personal">
<mods:role id="0685A333EA9D2BB4B2FA37EEA60D7779">
<mods:roleTerm id="6A7973908DBFA47352FC61DDA1F41A2A">Author</mods:roleTerm>
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<mods:namePart id="514F05473155B858948D7F93487D7006">Carriol, René-Pierre</mods:namePart>
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<mods:title id="075EB0837FD52423F963085E8BE11AA2">Zootaxa</mods:title>
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<mods:part id="405D99B46E0A3320E5C2E4D32A01B0C1">
<mods:date id="A7E5CD6652EE171EB1B4593A6B01D4E2">2013</mods:date>
<mods:detail id="579DEAE99BD9AC6B10FE14635446F854" type="volume">
<mods:number id="A46EC3D70F2B90949BAC4296A000718E">3641</mods:number>
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<mods:detail id="B2D3E9DDFEFADC270B5280D9C827DA61" type="issue">
<mods:number id="7EE95A43C1957199DF34B2BA83754076">1</mods:number>
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<mods:start id="87BEE373366CDCA93DCA762D5051A00D">21</mods:start>
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<mods:classification id="B7968A7A630FAC24087489F437B7886A">journal article</mods:classification>
<mods:identifier id="DC936BB62BC778FA5DD7649DE79CA60E" type="DOI">10.11646/zootaxa.3641.1.2</mods:identifier>
<mods:identifier id="DA86B76A7371B930A837CEE85B8908E0" type="GBIF-Dataset">2a7ba554-14c6-43ae-a049-c7b268418c4b</mods:identifier>
<mods:identifier id="31C0CFA38B99FF5969A6E45EF0D2545A" type="ISSN">1175-5326</mods:identifier>
<mods:identifier id="097D45C63FE7D3EF863066FBC4A8A944" type="Zenodo-Dep">283685</mods:identifier>
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<treatment id="03AC722E3E503C20FF38E942815CFEF8" ID-DOI="http://doi.org/10.5281/zenodo.6158737" ID-GBIF-Taxon="127663899" ID-Zenodo-Dep="6158737" LSID="urn:lsid:plazi:treatment:03AC722E3E503C20FF38E942815CFEF8" httpUri="http://treatment.plazi.org/id/03AC722E3E503C20FF38E942815CFEF8" lastPageId="6" lastPageNumber="27" pageId="5" pageNumber="26">
<subSubSection id="C31F90B33E503C23FF38E942815EFEBD" pageId="5" pageNumber="26" type="nomenclature">
<paragraph id="8BBAC3383E503C23FF38E9428235FEDC" blockId="5.[151,622,286,345]" box="[151,622,286,312]" pageId="5" pageNumber="26">
<heading id="D0F274543E503C23FF38E9428235FEDC" bold="true" box="[151,622,286,312]" fontSize="11" level="1" pageId="5" pageNumber="26" reason="1">
<emphasis id="B9711F2A3E503C23FF38E9428235FEDC" bold="true" box="[151,622,286,312]" pageId="5" pageNumber="26">
<taxonomicName id="4C05B8BB3E503C23FF38E9428252FEDC" box="[151,521,286,312]" class="Maxillopoda" family="Scalpellidae" genus="Arcoscalpellum" kingdom="Animalia" order="Pedunculata" pageId="5" pageNumber="26" phylum="Arthropoda" rank="species" species="concavitectum" status="sp. nov.">
<emphasis id="B9711F2A3E503C23FF38E9428252FEDC" bold="true" box="[151,521,286,312]" italics="true" pageId="5" pageNumber="26">Arcoscalpellum concavitectum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A242A2513E503C23FDBFE9428235FEDC" box="[528,622,286,312]" pageId="5" pageNumber="26" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="8BBAC3383E503C23FF38E91D815EFEBD" blockId="5.[151,622,286,345]" box="[151,261,321,345]" pageId="5" pageNumber="26">
<figureCitation id="133EDFBD3E503C23FF38E91D815EFEBD" box="[151,261,321,345]" captionStart="FIGURE 2. A – J" captionStartId="4.[151,250,1830,1853]" captionTargetBox="[183,1394,195,1801]" captionTargetId="figure@4.[183,1396,195,1802]" captionTargetPageId="4" captionText="FIGURE 2. A – J, Arcoscalpellum concavitectum sp. nov. A: paratype MNHN. F. A 45795, external side of right scutum; B: paratype MNHN. F. A 45796, internal side of left scutum; C: paratype MNHN. F. A 45794, internal side of left tergum; D: paratype MNHN. F. A 45793, external side of right tergum; E: paratype MNHN. F. A 45797, external side of right upper lateral; F: paratype MNHN. F. A 45798, internal side of left upper lateral; G 1 – 2: holotype MNHN. F. A 45791, external side of carina; H: paratype MNHN. F. A 45792, transverse section of carina; I: paratype MNHN. F. A 46422, external side of carina; J 1 – 2: paratype MNHN. F. A 46425, external and internal sides of left rostral lateral. K, Scalpellum sp. A, MNHN. F. A 46423, external side of right? upper lateral. L, Scalpellum sp. B, MNHN. F. A 46424, external side of left? upper lateral. Scale bars represent 1 mm." httpUri="https://zenodo.org/record/283687/files/figure.png" pageId="5" pageNumber="26">Fig. 2A–J</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="C31F90B33E503C23FF38E9D48345FE0D" pageId="5" pageNumber="26" type="diagnosis">
<paragraph id="8BBAC3383E503C23FF38E9D48345FE0D" blockId="5.[151,1436,392,634]" pageId="5" pageNumber="26">
<emphasis id="B9711F2A3E503C23FF38E9D4814AFE45" bold="true" box="[151,273,392,417]" pageId="5" pageNumber="26">Diagnosis.</emphasis>
Carina with concave tectum, bordered on each side by rounded rib without longitudinal ridges, intraparietes wide; tergum with apico-basal line formed by convergence of growth zones; upper lateral with basiscutal angle more widely truncated than basi-tergal angle.
</paragraph>
</subSubSection>
<subSubSection id="C31F90B33E503C23FF68E9A9835AFDB1" pageId="5" pageNumber="26" type="etymology">
<paragraph id="8BBAC3383E503C23FF68E9A98315FDE9" blockId="5.[151,1436,392,634]" box="[199,846,501,525]" pageId="5" pageNumber="26">
<emphasis id="B9711F2A3E503C23FF68E9A98115FDE9" bold="true" box="[199,334,501,525]" pageId="5" pageNumber="26">Etymology.</emphasis>
Alluding to the concave tectum of the carina.
</paragraph>
<paragraph id="8BBAC3383E503C23FF68EA44835AFDB1" blockId="5.[151,1436,392,634]" pageId="5" pageNumber="26">
<emphasis id="B9711F2A3E503C23FF68EA448102FDD5" bold="true" box="[199,345,536,561]" pageId="5" pageNumber="26">Occurrence.</emphasis>
Piacenzian to Gelasian from ‘Champeaux’ (co-ordinates: x = 335.84; y = 1172.9) in the Marchésieux district of the Département de la Manche.
</paragraph>
</subSubSection>
<subSubSection id="C31F90B33E503C23FF68EA3D8425FD9D" box="[199,1150,609,634]" pageId="5" pageNumber="26" type="materials_examined">
<paragraph id="8BBAC3383E503C23FF68EA3D8425FD9D" blockId="5.[151,1436,392,634]" box="[199,1150,609,634]" pageId="5" pageNumber="26">
<emphasis id="B9711F2A3E503C23FF68EA3D81EBFD9E" bold="true" box="[199,432,609,634]" pageId="5" pageNumber="26">Material examined.</emphasis>
Inventory, and designation of the
<typeStatus id="54BE7D9A3E503C23FC80EA3E8304FD9E" box="[815,863,610,634]" pageId="5" pageNumber="26">type</typeStatus>
material, see Appendix 3
</paragraph>
</subSubSection>
<subSubSection id="C31F90B33E503C20FF38EAF5815CFEF8" lastPageId="6" lastPageNumber="27" pageId="5" pageNumber="26" type="description">
<paragraph id="8BBAC3383E503C23FF38EAF581D5FD26" blockId="5.[151,398,681,706]" box="[151,398,681,706]" pageId="5" pageNumber="26">
<emphasis id="B9711F2A3E503C23FF38EAF581D5FD26" bold="true" box="[151,398,681,706]" pageId="5" pageNumber="26">MEASUREMENTS.</emphasis>
</paragraph>
<paragraph id="8BBAC3383E503C23FE08EA81838EFB9F" pageId="5" pageNumber="26">
<table id="F90531983E50C3D9FF30EA818526FB9F" box="[159,1405,733,1147]" gridcols="4" gridrows="9" pageId="5" pageNumber="26">
<tr id="3535C17A3E50C3D9FF30EA818526FD17" box="[159,1405,733,755]" gridrow="0" pageId="5" pageNumber="26" rowspan-0="1">
<th id="76E4A8063E50C3D9FE08EA81827CFD17" box="[423,551,733,755]" gridcol="1" gridrow="0" pageId="5" pageNumber="26">Plate</th>
<th id="76E4A8063E50C3D9FDFEEA8183C3FD17" box="[593,920,733,755]" gridcol="2" gridrow="0" pageId="5" pageNumber="26">Height (mm)</th>
<th id="76E4A8063E50C3D9FC1AEA818526FD17" box="[949,1405,733,755]" gridcol="3" gridrow="0" pageId="5" pageNumber="26">Width (mm)</th>
</tr>
<tr id="3535C17A3E50C3D9FF30EB5A8526FCF8" box="[159,1405,774,796]" gridrow="1" pageId="5" pageNumber="26" rowspan-1="1" rowspan-2="1" rowspan-3="1">
<th id="76E4A8063E50C3D9FF30EB5A810CFCF8" box="[159,343,774,796]" gridcol="0" gridrow="1" pageId="5" pageNumber="26">Holotype</th>
</tr>
<tr id="3535C17A3E50C3D9FF30EB6C8526FCA2" box="[159,1405,816,838]" gridrow="2" pageId="5" pageNumber="26" rowspan-3="1">
<th id="76E4A8063E50C3D9FF30EB6C810CFCA2" box="[159,343,816,838]" gridcol="0" gridrow="2" pageId="5" pageNumber="26">
MNHN.F.
<accessionNumber id="94565EDB3E503C23FEABEB6C810DFCA2" box="[260,342,816,838]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/A45791" pageId="5" pageNumber="26" type="EnaNcbi">A45791</accessionNumber>
</th>
<td id="76E4A8063E50C3D9FE08EB6C827CFCA2" box="[423,551,816,838]" gridcol="1" gridrow="2" pageId="5" pageNumber="26">carina</td>
<td id="76E4A8063E50C3D9FDFEEB6C83C3FCA2" box="[593,920,816,838]" gridcol="2" gridrow="2" pageId="5" pageNumber="26">3.19</td>
</tr>
<tr id="3535C17A3E50C3D9FF30EB068526FC6A" box="[159,1405,858,910]" gridrow="3" pageId="5" pageNumber="26" rowspan-3="1">
<th id="76E4A8063E50C3D9FF30EB06810CFC6A" box="[159,343,858,910]" gridcol="0" gridrow="3" pageId="5" pageNumber="26">
Paratypes MNHN.F.
<accessionNumber id="94565EDB3E503C23FEACEB24810DFC6A" box="[259,342,888,910]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/A46422" pageId="5" pageNumber="26" type="EnaNcbi">A46422</accessionNumber>
</th>
<td id="76E4A8063E50C3D9FE08EB06827CFC6A" box="[423,551,858,910]" gridcol="1" gridrow="3" pageId="5" pageNumber="26">carina</td>
<td id="76E4A8063E50C3D9FDFEEB0683C3FC6A" box="[593,920,858,910]" gridcol="2" gridrow="3" pageId="5" pageNumber="26">1.9</td>
</tr>
<tr id="3535C17A3E50C3D9FF30EBFD8526FC53" box="[159,1405,929,951]" gridrow="4" pageId="5" pageNumber="26">
<th id="76E4A8063E50C3D9FF30EBFD810CFC53" box="[159,343,929,951]" gridcol="0" gridrow="4" pageId="5" pageNumber="26">
MNHN.F.
<accessionNumber id="94565EDB3E503C23FEACEBFD810CFC53" box="[259,343,929,951]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/A45793" pageId="5" pageNumber="26" type="EnaNcbi">A45793</accessionNumber>
</th>
<td id="76E4A8063E50C3D9FE08EBFD827CFC53" box="[423,551,929,951]" gridcol="1" gridrow="4" pageId="5" pageNumber="26">tergum</td>
<td id="76E4A8063E50C3D9FDFEEBFD83C3FC53" box="[593,920,929,951]" gridcol="2" gridrow="4" pageId="5" pageNumber="26">2.4 (apex to carino-scutal angle)</td>
<td id="76E4A8063E50C3D9FC1AEBFD8526FC53" box="[949,1405,929,951]" gridcol="3" gridrow="4" pageId="5" pageNumber="26">1.1 (scuto-occludent angle to carinal margin)</td>
</tr>
<tr id="3535C17A3E50C3D9FF30EB968526FC04" box="[159,1405,970,992]" gridrow="5" pageId="5" pageNumber="26">
<th id="76E4A8063E50C3D9FF30EB96810CFC04" box="[159,343,970,992]" gridcol="0" gridrow="5" pageId="5" pageNumber="26">MNHN.F.A45794</th>
<td id="76E4A8063E50C3D9FE08EB96827CFC04" box="[423,551,970,992]" gridcol="1" gridrow="5" pageId="5" pageNumber="26">tergum</td>
<td id="76E4A8063E50C3D9FDFEEB9683C3FC04" box="[593,920,970,992]" gridcol="2" gridrow="5" pageId="5" pageNumber="26">2.2 (apex to carino-scutal angle)</td>
<td id="76E4A8063E50C3D9FC1AEB968526FC04" box="[949,1405,970,992]" gridcol="3" gridrow="5" pageId="5" pageNumber="26">1.1 (scuto-occludent angle to carinal margin)</td>
</tr>
<tr id="3535C17A3E50C3D9FF30EBAF8526FBEE" box="[159,1405,1011,1034]" gridrow="6" pageId="5" pageNumber="26">
<th id="76E4A8063E50C3D9FF30EBAF810CFBEE" box="[159,343,1011,1034]" gridcol="0" gridrow="6" pageId="5" pageNumber="26">
MNHN.F.
<accessionNumber id="94565EDB3E503C23FEACEBAF810CFBED" box="[259,343,1011,1033]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/A45795" pageId="5" pageNumber="26" type="EnaNcbi">A45795</accessionNumber>
</th>
<td id="76E4A8063E50C3D9FE08EBAF827CFBEE" box="[423,551,1011,1034]" gridcol="1" gridrow="6" pageId="5" pageNumber="26">scutum</td>
<td id="76E4A8063E50C3D9FDFEEBAF83C3FBEE" box="[593,920,1011,1034]" gridcol="2" gridrow="6" pageId="5" pageNumber="26">1.6</td>
<td id="76E4A8063E50C3D9FC1AEBAF8526FBEE" box="[949,1405,1011,1034]" gridcol="3" gridrow="6" pageId="5" pageNumber="26">0.9</td>
</tr>
<tr id="3535C17A3E50C3D9FF30EC418526FBD7" box="[159,1405,1053,1075]" gridrow="7" pageId="5" pageNumber="26">
<th id="76E4A8063E50C3D9FF30EC41810CFBD7" box="[159,343,1053,1075]" gridcol="0" gridrow="7" pageId="5" pageNumber="26">MNHN.F.A45796</th>
<td id="76E4A8063E50C3D9FE08EC41827CFBD7" box="[423,551,1053,1075]" gridcol="1" gridrow="7" pageId="5" pageNumber="26">scutum</td>
<td id="76E4A8063E50C3D9FDFEEC4183C3FBD7" box="[593,920,1053,1075]" gridcol="2" gridrow="7" pageId="5" pageNumber="26">2.9</td>
<td id="76E4A8063E50C3D9FC1AEC418526FBD7" box="[949,1405,1053,1075]" gridcol="3" gridrow="7" pageId="5" pageNumber="26">1.2</td>
</tr>
<tr id="3535C17A3E50C3D9FF30EC1A8526FB9F" box="[159,1405,1094,1147]" gridrow="8" pageId="5" pageNumber="26">
<th id="76E4A8063E50C3D9FF30EC1A810CFB9F" box="[159,343,1094,1147]" gridcol="0" gridrow="8" pageId="5" pageNumber="26">
MNHN.F.
<accessionNumber id="94565EDB3E503C23FEACEC1A810DFBB8" box="[259,342,1094,1116]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/A45797" pageId="5" pageNumber="26" type="EnaNcbi">A45797</accessionNumber>
MNHN.F.A45798
</th>
<td id="76E4A8063E50C3D9FE08EC1A827CFB9F" box="[423,551,1094,1147]" gridcol="1" gridrow="8" pageId="5" pageNumber="26">upper lateral upper lateral</td>
<td id="76E4A8063E50C3D9FDFEEC1A83C3FB9F" box="[593,920,1094,1147]" gridcol="2" gridrow="8" pageId="5" pageNumber="26">1.5 1.3</td>
<td id="76E4A8063E50C3D9FC1AEC1A8526FB9F" box="[949,1405,1094,1147]" gridcol="3" gridrow="8" pageId="5" pageNumber="26">1.1 1.1</td>
</tr>
</table>
</paragraph>
<paragraph id="8BBAC3383E503C23FF68EC9E8332FA8E" blockId="5.[151,1437,1218,2035]" pageId="5" pageNumber="26">
<emphasis id="B9711F2A3E503C23FF68EC9E8102FB3F" bold="true" box="[199,345,1218,1243]" pageId="5" pageNumber="26">Description.</emphasis>
Tergum subrhomboidal, flat, thin; umbo apical. Carinal margin straight, upper part with barely visible prominence marking limit of upward extension of carina. Occludent margin convex. Scutal margin sinuous. Apico-basal ridge absent, line formed by convergence of growth zones extending down from apex to basal angle, near and parallel to carinal margin. Inner surface with occludent and upper carinal margins narrowly thickened, marked with growth lines meeting in rounded angle below apex.
</paragraph>
<paragraph id="8BBAC3383E503C23FF68ED2A815EF9A6" blockId="5.[151,1437,1218,2035]" pageId="5" pageNumber="26">
Scutum trapezoidal, convex transversely, apical part bowed towards tergum; umbo apical. Occludent margin convex, folded abruptly inwards. Tergal margin concave. Lateral margin straight. Tergo-lateral angle produced, rounded. Basi-lateral angle rounded. Basal margin straight. Apico-basal ridge absent, line formed by convergence of growth zones extending down from umbo to lateral-basal angle. Inner surface with adductor muscle pit wide, deep or shallow. Deep pouch for complemental males on occludent side between adductor muscle pit and apex (
<figureCitation id="133EDFBD3E503C23FF30EE7680ACF9A6" box="[159,247,1578,1602]" captionStart="FIGURE 2. A – J" captionStartId="4.[151,250,1830,1853]" captionTargetBox="[183,1394,195,1801]" captionTargetId="figure@4.[183,1396,195,1802]" captionTargetPageId="4" captionText="FIGURE 2. A – J, Arcoscalpellum concavitectum sp. nov. A: paratype MNHN. F. A 45795, external side of right scutum; B: paratype MNHN. F. A 45796, internal side of left scutum; C: paratype MNHN. F. A 45794, internal side of left tergum; D: paratype MNHN. F. A 45793, external side of right tergum; E: paratype MNHN. F. A 45797, external side of right upper lateral; F: paratype MNHN. F. A 45798, internal side of left upper lateral; G 1 – 2: holotype MNHN. F. A 45791, external side of carina; H: paratype MNHN. F. A 45792, transverse section of carina; I: paratype MNHN. F. A 46422, external side of carina; J 1 – 2: paratype MNHN. F. A 46425, external and internal sides of left rostral lateral. K, Scalpellum sp. A, MNHN. F. A 46423, external side of right? upper lateral. L, Scalpellum sp. B, MNHN. F. A 46424, external side of left? upper lateral. Scale bars represent 1 mm." httpUri="https://zenodo.org/record/283687/files/figure.png" pageId="5" pageNumber="26">Fig. 2B</figureCitation>
).
</paragraph>
<paragraph id="8BBAC3383E503C23FF68EE128469F96E" blockId="5.[151,1437,1218,2035]" pageId="5" pageNumber="26">Carina moderately bowed inwards; umbo apical. Basal margin convex. Tectum concave, bordered on each side by rounded rib. Parietes somewhat concave. Intraparietes wide, inclined outwards.</paragraph>
<paragraph id="8BBAC3383E503C23FF68EECB85DAF8FE" blockId="5.[151,1437,1218,2035]" pageId="5" pageNumber="26">Upper lateral pentagonal, height exceeding width, slightly thickened; umbo apical. Scutal margin concave, smaller than convex tergal margin. Basal margin convex, unequally truncated at sides, that on scutal side longer than on tergal side. Two lines extending from umbo, one to each of inner angles on truncated basal margin. Between scutal margin and former line, as between tergal margin and latter line, growth lines abruptly upturned.</paragraph>
<paragraph id="8BBAC3383E503C23FF68EF7A8325F862" blockId="5.[151,1437,1218,2035]" pageId="5" pageNumber="26">Rostral lateral with rounded ridge extending down from umbo to lower part of rounded infra-median lateral end. Upper margin concave to straight; lower margin strongly concave on rostral half, convex on infra-median lateral half. Inner surface concave with rostral end rising upwards.</paragraph>
<paragraph id="8BBAC3383E503C23FF68EFCE82BBF816" blockId="5.[151,1437,1218,2035]" pageId="5" pageNumber="26">
<emphasis id="B9711F2A3E503C23FF68EFCE8166F84F" bold="true" box="[199,317,1938,1963]" pageId="5" pageNumber="26">Affinities.</emphasis>
Withers (1953) recorded only a single species of
<taxonomicName id="4C05B8BB3E503C23FC2CEFCF8469F84F" box="[899,1074,1939,1963]" class="Maxillopoda" family="Scalpellidae" genus="Arcoscalpellum" kingdom="Animalia" order="Pedunculata" pageId="5" pageNumber="26" phylum="Arthropoda" rank="genus">
<emphasis id="B9711F2A3E503C23FC2CEFCF8469F84F" box="[899,1074,1939,1963]" italics="true" pageId="5" pageNumber="26">Arcoscalpellum</emphasis>
</taxonomicName>
from Pliocene strata, that is
<taxonomicName id="4C05B8BB3E503C23FA2BEFCF8254F82A" authority="Seguenza, 1876" authorityName="Seguenza" authorityYear="1876" class="Maxillopoda" family="Scalpellidae" genus="Arcoscalpellum" kingdom="Animalia" order="Pedunculata" pageId="5" pageNumber="26" phylum="Arthropoda" rank="species" species="michelottianum">
<emphasis id="B9711F2A3E503C23FA2BEFCF811EF82A" italics="true" pageId="5" pageNumber="26">A. michelottianum</emphasis>
(Seguenza, 1876)
</taxonomicName>
from the Piacenzian of Sicily and Calabria,
<collectingCountry id="F31283A83E503C23FC50EFEA846FF82A" box="[1023,1076,1974,1998]" name="Italy" pageId="5" pageNumber="26">Italy</collectingCountry>
. Since 1953, no other species of
<taxonomicName id="4C05B8BB3E503C23FF38EF87811DF817" box="[151,326,2011,2035]" class="Maxillopoda" family="Scalpellidae" genus="Arcoscalpellum" kingdom="Animalia" order="Pedunculata" pageId="5" pageNumber="26" phylum="Arthropoda" rank="genus">
<emphasis id="B9711F2A3E503C23FF38EF87811DF817" box="[151,326,2011,2035]" italics="true" pageId="5" pageNumber="26">Arcoscalpellum</emphasis>
</taxonomicName>
has been recorded from these strata.
</paragraph>
<paragraph id="8BBAC3383E533C20FF68E8C4815CFEF8" blockId="6.[151,1436,151,284]" pageId="6" pageNumber="27">
<taxonomicName id="4C05B8BB3E533C20FF68E8C48244FF54" box="[199,543,152,176]" class="Maxillopoda" family="Scalpellidae" genus="Arcoscalpellum" kingdom="Animalia" order="Pedunculata" pageId="6" pageNumber="27" phylum="Arthropoda" rank="species" species="concavitectum" status="sp. nov.">
<emphasis id="B9711F2A3E533C20FF68E8C48244FF54" box="[199,543,152,176]" italics="true" pageId="6" pageNumber="27">Arcoscalpellum concavitectum</emphasis>
</taxonomicName>
<emphasis id="B9711F2A3E533C20FD8AE8C48224FF54" bold="true" box="[549,639,152,176]" pageId="6" pageNumber="27">
<taxonomicNameLabel id="A242A2513E533C20FD8AE8C48224FF54" box="[549,639,152,176]" pageId="6" pageNumber="27" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
differs from
<taxonomicName id="4C05B8BB3E533C20FCBCE8C483BAFF54" box="[787,993,152,176]" class="Maxillopoda" family="Scalpellidae" genus="Arcoscalpellum" kingdom="Animalia" order="Pedunculata" pageId="6" pageNumber="27" phylum="Arthropoda" rank="species" species="michelottianum">
<emphasis id="B9711F2A3E533C20FCBCE8C483BAFF54" box="[787,993,152,176]" italics="true" pageId="6" pageNumber="27">A. michelottianum</emphasis>
</taxonomicName>
in that the latter has a carina with a flat tectum bordered by ribs and longitudinal ridges on the parietes; the tergum has a ridge extending from the apex to the scutal margin, placed almost halfway from the basal angle; the upper lateral has the basal-scutal angle narrowly truncated.
</paragraph>
</subSubSection>
</treatment>
</document>
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