286 lines
27 KiB
XML
286 lines
27 KiB
XML
<document id="A90CA1A52E7E87AE6EAEC9BF1185B1F2" ID-ISSN="0253-6730" IM.materialsCitations_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1649690268132" checkinUser="carolina" docAuthor="Sassaroli, Stefano & Venturi, Federico" docDate="2012" docId="03DA011AFFDBFFE1084CFE47FBB908A9" docLanguage="en" docName="RevPaleobiol.31.1.85-114.pdf" docOrigin="Revue de Paléobiologie 31 (1)" docStyle="DocumentStyle:C172DF54475A4E3C75B7590733AD2922.3:RevPaleobiol.2012-.journal_article.1cover" docStyleId="C172DF54475A4E3C75B7590733AD2922" docStyleName="RevPaleobiol.2012-.journal_article.1cover" docStyleVersion="3" docTitle="Hildaites striatus GUEX 1973" docType="treatment" docVersion="2" lastPageNumber="98" masterDocId="FFE37962FFD5FFEF0953FF85FFA50C7C" masterDocTitle="Early Toarcian (post-OAE) Hildoceratinae (Ammonitina) fauna from the Marchean Apennines (Italy)" masterLastPageNumber="114" masterPageNumber="85" pageNumber="98" updateTime="1699312896216" updateUser="plazi" zenodo-license-document="CC-BY-4.0" zenodo-license-figures="CC-BY-4.0">
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<mods:title id="1485899167374F8AABF4D8DF2719FE6D">Early Toarcian (post-OAE) Hildoceratinae (Ammonitina) fauna from the Marchean Apennines (Italy)</mods:title>
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<mods:namePart id="BBB13F0034225042C0D76C3B2C9B33EF">Sassaroli, Stefano</mods:namePart>
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<mods:namePart id="9C340D802527D8B90AAEBA7DF523CEF6">Venturi, Federico</mods:namePart>
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<mods:typeOfResource id="EE0AB35C9E876C70599AC5774DDC44CD">text</mods:typeOfResource>
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<mods:title id="8000166E6D38C73E87FEC80E2EB38DA9">Revue de Paléobiologie</mods:title>
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<mods:part id="B4C10A5953F9AB44076F89C721D6E39D">
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<mods:date id="FE973AB7B2070DFA52AB923D721B3E29">2012</mods:date>
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<mods:number id="068D2015A81F481C327509D4B631D0E4">2012-07-31</mods:number>
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<mods:number id="A8CF4FD0EB65300972A3473A47A390DF">31</mods:number>
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<mods:classification id="CE8AC965BFC56D8D0B35F7F8CDB4272D">journal article</mods:classification>
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<mods:identifier id="43A0A44E376626A2EFF286A8E006CE33" type="ISSN">0253-6730</mods:identifier>
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</mods:mods>
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<treatment id="03DA011AFFDBFFE1084CFE47FBB908A9" LSID="urn:lsid:plazi:treatment:03DA011AFFDBFFE1084CFE47FBB908A9" httpUri="http://treatment.plazi.org/id/03DA011AFFDBFFE1084CFE47FBB908A9" lastPageNumber="98" pageId="14" pageNumber="98">
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<subSubSection id="C369E387FFDBFFE1084CFE47FD110D87" pageId="14" pageNumber="98" type="nomenclature">
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<paragraph id="8BCCB00CFFDBFFE1084CFE47FDC90DA6" blockId="14.[215,692,450,507]" box="[287,620,450,474]" pageId="14" pageNumber="98">
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<heading id="D0840760FFDBFFE1084CFE47FDC90DA6" box="[287,620,450,474]" centered="true" fontSize="9" level="2" pageId="14" pageNumber="98" reason="4">
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<taxonomicName id="4C73CB8FFFDBFFE1084CFE47FDC90DA6" ID-CoL="3LWW8" authority="GUEX, 1973" authorityName="GUEX" authorityYear="1973" box="[287,620,450,474]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="striatus">
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<emphasis id="B9076C1EFFDBFFE1084CFE47FDC90DA6" bold="true" box="[287,620,450,474]" pageId="14" pageNumber="98">
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||
<emphasis id="B9076C1EFFDBFFE1084CFE47FE7E0DA6" bold="true" box="[287,475,450,474]" italics="true" pageId="14" pageNumber="98">Hildaites striatus</emphasis>
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GUEX, 1973
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</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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<paragraph id="8BCCB00CFFDBFFE10984FE66FD110D87" blockId="14.[215,692,450,507]" box="[215,692,482,507]" pageId="14" pageNumber="98">
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<emphasis id="B9076C1EFFDBFFE10984FE66FD110D87" bold="true" box="[215,692,482,507]" pageId="14" pageNumber="98">
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Pl. II, figs. 1a-b, 2, 3a-c, 4, 5, 6;
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<figureCitation id="1348AC89FFDBFFE10B6FFE67FDD90D86" box="[572,636,482,506]" captionStart="Fig" captionStartId="13.[151,186,1402,1424]" captionTargetBox="[151,1436,257,1349]" captionTargetId="figure-321@13.[151,1436,257,1359]" captionTargetPageId="13" captionText="Fig. 6: A-B: Hildaites wrighti, specimen MSA60, whorl section (x1) and suture (x5). C-D: Hildaites subserpentinus, specimen MSA254, whorl section (x1) and suture (x3). E-F: Hildaites striatus, specimen MSA30, whorl section (x1) and suture (x3). G-I: Hildaites evolutus n. sp., holotype MSA426, shell draw (x1), whorl section (x1) and suture (x3). J-L: Hildaites exilis, specimen MSA102, shell draw (x1), whorl section (x1) and suture (x3)." pageId="14" pageNumber="98">Fig. 6</figureCitation>
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, E-F
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</emphasis>
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</paragraph>
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</subSubSection>
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<subSubSection id="C369E387FFDBFFE109C4FDA4FD540FB0" pageId="14" pageNumber="98" type="description">
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<paragraph id="8BCCB00CFFDBFFE109C4FDA4FE650E2F" blockId="14.[151,757,545,973]" pageId="14" pageNumber="98">
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?1913.
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<taxonomicName id="4C73CB8FFFDBFFE109B9FDA4FD7A0E4B" authority="MENEGHINI." authorityName="MENEGHINI." box="[234,735,545,567]" class="Cephalopoda" family="Hildoceratidae" genus="Hildoceras" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="pectinatum" subGenus="Fuciniceras">
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<emphasis id="B9076C1EFFDBFFE109B9FDA4FDF90E4B" box="[234,604,545,567]" italics="true" pageId="14" pageNumber="98">Hildoceras (Fuciniceras) pectinatum</emphasis>
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MENEGHINI.
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</taxonomicName>
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- MEISTER, pl. 13, fig. 1
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</paragraph>
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<paragraph id="8BCCB00CFFDBFFE109C4FDDEFEE30EF2" blockId="14.[151,757,545,973]" pageId="14" pageNumber="98">
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?1963.
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<taxonomicName id="4C73CB8FFFDBFFE109B9FDDEFD9F0E0D" authority="BUCKMAN." authorityName="BUCKMAN." box="[234,570,603,625]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="serpentinum">
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<emphasis id="B9076C1EFFDBFFE109B9FDDEFE610E0D" box="[234,452,603,625]" italics="true" pageId="14" pageNumber="98">Hildaites serpentinum</emphasis>
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BUCKMAN.
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</taxonomicName>
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- ZANZUCCHI, pl. 18, fig. 6.
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</paragraph>
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<paragraph id="8BCCB00CFFDBFFE109C4FD10FEB90EB4" blockId="14.[151,757,545,973]" pageId="14" pageNumber="98">
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?1966.
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<taxonomicName id="4C73CB8FFFDBFFE109B9FD10FE670ED7" authority="TATE." authorityName="TATE." box="[234,450,661,683]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="acutus">
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<emphasis id="B9076C1EFFDBFFE109B9FD10FE230ED7" box="[234,390,661,683]" italics="true" pageId="14" pageNumber="98">Hildaites acutus</emphasis>
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TATE.
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</taxonomicName>
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– KOTTEK, pl. 5, fig. 3 and pl. 6, fig.1.
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</paragraph>
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<paragraph id="8BCCB00CFFDBFFE109F7FD4AFE750F7D" blockId="14.[151,757,545,973]" pageId="14" pageNumber="98">
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1973.
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<taxonomicName id="4C73CB8FFFDBFFE109B9FD4AFE750E9F" authority="GUEX" authorityName="GUEX" box="[234,464,719,741]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="striatus">
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<emphasis id="B9076C1EFFDBFFE109B9FD4AFE340E99" box="[234,401,719,741]" italics="true" pageId="14" pageNumber="98">Hildaites striatus</emphasis>
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GUEX
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</taxonomicName>
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, pl. 7, fig. 3 (
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<typeStatus id="54C80EAEFFDBFFE10B04FD4AFD140E99" box="[599,689,719,741]" pageId="14" pageNumber="98" type="holotype">holotype</typeStatus>
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); pl. 3, fig. 10 and pl. 10, fig. 2.
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</paragraph>
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<paragraph id="8BCCB00CFFDBFFE109F7FC8CFDE20F62" blockId="14.[151,757,545,973]" box="[164,583,777,799]" pageId="14" pageNumber="98">
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1973.
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<taxonomicName id="4C73CB8FFFDBFFE109B9FC8CFEC10F62" box="[234,356,777,798]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="undetermined">
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<emphasis id="B9076C1EFFDBFFE109B9FC8CFEE70F62" box="[234,322,777,798]" italics="true" pageId="14" pageNumber="98">Hildaites</emphasis>
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sp.
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</taxonomicName>
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ind. GUEX, pl. 6, fig. 3.
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</paragraph>
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<paragraph id="8BCCB00CFFDBFFE109F7FCA3FEB50F24" blockId="14.[151,757,545,973]" pageId="14" pageNumber="98">
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1980.
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<taxonomicName id="4C73CB8FFFDBFFE109B9FCA3FE700F47" authority="GUEX." authorityName="GUEX." box="[234,469,806,828]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="striatus">
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<emphasis id="B9076C1EFFDBFFE109B9FCA3FE350F40" box="[234,400,806,828]" italics="true" pageId="14" pageNumber="98">Hildaites striatus</emphasis>
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GUEX.
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</taxonomicName>
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- WIEDENMAYER, pl. 32, figs. 1-4.
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</paragraph>
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<paragraph id="8BCCB00CFFDBFFE109F7FCE5FE520FEF" blockId="14.[151,757,545,973]" pageId="14" pageNumber="98">
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1992.
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<taxonomicName id="4C73CB8FFFDBFFE109B9FCE5FE720F09" authority="GUEX." authorityName="GUEX." box="[234,471,864,885]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="striatus">
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<emphasis id="B9076C1EFFDBFFE109B9FCE5FE340F09" box="[234,401,864,885]" italics="true" pageId="14" pageNumber="98">Hildaites striatus</emphasis>
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GUEX.
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</taxonomicName>
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- JIMÉNEZ JIMÉNEZ & RIVAS CARRERA, pl. 4, figs. 11-15.
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</paragraph>
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<paragraph id="8BCCB00CFFDBFFE109CAFC1FFD170FCC" blockId="14.[151,757,545,973]" box="[153,690,922,944]" pageId="14" pageNumber="98">
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2002a.
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<taxonomicName id="4C73CB8FFFDBFFE109B9FC1FFE700FD3" authority="SPATH." authorityName="SPATH." box="[234,469,922,943]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="wrighti">
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<emphasis id="B9076C1EFFDBFFE109B9FC1FFE280FD3" box="[234,397,922,943]" italics="true" pageId="14" pageNumber="98">Hildaites wrighti</emphasis>
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SPATH.
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</taxonomicName>
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- MACCHIONI, fig. 4.6.
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</paragraph>
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<paragraph id="8BCCB00CFFDBFFE109F7FC32FD540FB0" blockId="14.[151,757,545,973]" box="[164,753,951,973]" pageId="14" pageNumber="98">
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2010.
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<taxonomicName id="4C73CB8FFFDBFFE109B9FC32FE700FB0" authority="GUEX." authorityName="GUEX." box="[234,469,951,972]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="striatus">
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<emphasis id="B9076C1EFFDBFFE109B9FC32FE350FB0" box="[234,400,951,972]" italics="true" pageId="14" pageNumber="98">Hildaites striatus</emphasis>
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GUEX.
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</taxonomicName>
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- BILOTTA
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<emphasis id="B9076C1EFFDBFFE10B11FC32FDD60FB0" box="[578,627,951,972]" italics="true" pageId="14" pageNumber="98">et al.</emphasis>
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, fig. 17 A-B.
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</paragraph>
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</subSubSection>
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||
<subSubSection id="C369E387FFDBFFE109C4FC74FC580D05" pageId="14" pageNumber="98" type="materials_examined">
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<paragraph id="8BCCB00CFFDBFFE109C4FC74FF460835" blockId="14.[151,757,1009,2077]" pageId="14" pageNumber="98">
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<emphasis id="B9076C1EFFDBFFE109C4FC74FEA10875" bold="true" box="[151,260,1009,1033]" pageId="14" pageNumber="98">Material:</emphasis>
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Eighteen specimens of small and medium size, five of which with the body chamber, from Marconessa quarry.
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</paragraph>
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<paragraph id="8BCCB00CFFDBFFE109C4FBD5FC580D05" blockId="14.[151,757,1009,2077]" lastBlockId="14.[831,1437,257,1238]" pageId="14" pageNumber="98">
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<emphasis id="B9076C1EFFDBFFE109C4FBD5FE310814" bold="true" box="[151,404,1104,1128]" pageId="14" pageNumber="98">Amended diagnosis:</emphasis>
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||
<materialsCitation id="3B1BBA51FFDBFFE108E3FBD5FD4C0996" collectionCode="LS" collectorName="Evolute & The & They" pageId="14" pageNumber="98" specimenCode="LS1" specimenCount="1">
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||
<collectorName id="2686D5DAFFDBFFE108E3FBD5FDA60814" box="[432,515,1104,1128]" pageId="14" pageNumber="98">Evolute</collectorName>
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||
compressed shell, elliptical whorl section with little overlap of the whorls.
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<collectorName id="2686D5DAFFDBFFE109C4FB15FF6508D4" box="[151,192,1168,1192]" pageId="14" pageNumber="98">The</collectorName>
|
||
coiling rapidly increase in height whorl.
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||
<collectorName id="2686D5DAFFDBFFE10B3FFB15FD3008D4" box="[620,661,1168,1192]" pageId="14" pageNumber="98">The</collectorName>
|
||
venter is moderately narrow, tabulate with raised and coarse keel.
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||
<collectorName id="2686D5DAFFDBFFE109C4FB4AFF65089B" box="[151,192,1231,1255]" pageId="14" pageNumber="98">The</collectorName>
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||
umbilical edge is rounded and the low umbilical wall is gently sloped.
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||
<collectorName id="2686D5DAFFDBFFE10801FB6BFEDE097A" box="[338,379,1262,1286]" pageId="14" pageNumber="98">The</collectorName>
|
||
moderately sinuous ribs are finest and dense, usually bifurcating or sometimes bundled mainly in the outer whorls and in the body chamber.
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||
<collectorName id="2686D5DAFFDBFFE10B99FAABFD56093A" box="[714,755,1326,1350]" pageId="14" pageNumber="98">The</collectorName>
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||
ribs start little retroverted from the umbilical wall, ending projected on the ventro-lateral edge.
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||
<collectorName id="2686D5DAFFDBFFE10B0BFAE8FD2A09F9" box="[600,655,1389,1413]" pageId="14" pageNumber="98">They</collectorName>
|
||
become more sinuous and projected in the body chamber.
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||
<collectorName id="2686D5DAFFDBFFE10B99FA08FD5609D9" box="[714,755,1421,1445]" pageId="14" pageNumber="98">The</collectorName>
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||
ammonitic suture is simple, little frilled and it shows a slanting ES saddle, which is wider twice as wide as
|
||
<specimenCode id="DBD51877FFDBFFE10B91FA49FD4C0996" box="[706,745,1484,1514]" collectionCode="LS" country="United Kingdom" name="Linnean Society of London" pageId="14" pageNumber="98">
|
||
LS
|
||
<subScript id="17F7B249FFDBFFE10BB2FA59FD4C0996" attach="left" box="[737,745,1500,1514]" fontSize="6" pageId="14" pageNumber="98">1</subScript>
|
||
</specimenCode>
|
||
</materialsCitation>
|
||
.
|
||
<materialsCitation id="3B1BBA51FFDBFFE109C4FA6EFEC80478" collectionCode="LS" collectorName="Description & Evolute & The & L. The" pageId="14" pageNumber="98" specimenCode="LS1" specimenCount="1">
|
||
<emphasis id="B9076C1EFFDBFFE109C4FA6EFE810A7F" bold="true" box="[151,292,1515,1539]" pageId="14" pageNumber="98">
|
||
<collectorName id="2686D5DAFFDBFFE109C4FA6EFEBA0A7F" box="[151,287,1515,1539]" pageId="14" pageNumber="98">Description</collectorName>
|
||
:
|
||
</emphasis>
|
||
<collectorName id="2686D5DAFFDBFFE1087BFA6EFEDE0A7F" box="[296,379,1515,1539]" pageId="14" pageNumber="98">Evolute</collectorName>
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||
small sized shell.
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||
<collectorName id="2686D5DAFFDBFFE10B66FA6EFDFB0A7F" box="[565,606,1515,1539]" pageId="14" pageNumber="98">The</collectorName>
|
||
elliptical very compressed shell shows a little overlap of the whorls and a rapid coiling increase.
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||
<collectorName id="2686D5DAFFDBFFE108CDF9AEFE620A3F" box="[414,455,1579,1603]" pageId="14" pageNumber="98">The</collectorName>
|
||
low umbilical wall shows a gently sloped or rounded umbilical edge.
|
||
<collectorName id="2686D5DAFFDBFFE10B1EF9CFFDD30A1E" box="[589,630,1610,1634]" pageId="14" pageNumber="98">The</collectorName>
|
||
moderately sinuous, finest and dense ribs are sometime single or usually bifurcating; in the outer whorls and in the body chamber they become densest and sometime bundled forming the typical striatures.
|
||
<collectorName id="2686D5DAFFDBFFE108B2F94CFDAF0A9D" box="[481,522,1737,1761]" pageId="14" pageNumber="98">The</collectorName>
|
||
venter is narrow and flattened with coarse keel, similar to
|
||
<taxonomicName id="4C73CB8FFFDBFFE10B78F96CFD480B7C" box="[555,749,1768,1792]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="subserpentinus">
|
||
<emphasis id="B9076C1EFFDBFFE10B78F96CFD480B7C" box="[555,749,1768,1792]" italics="true" pageId="14" pageNumber="98">H. subserpentinus</emphasis>
|
||
</taxonomicName>
|
||
, which instead has a more narrow and more acute venter.
|
||
<collectorName id="2686D5DAFFDBFFE109C4F8ADFF650B3C" box="[151,192,1832,1856]" pageId="14" pageNumber="98">The</collectorName>
|
||
ribs are sinuous in the fragmocone, but not much backward near the umbilical and moderately projected on the ventro-lateral edge, becoming more sinuous in the body chamber.
|
||
<collectorName id="2686D5DAFFDBFFE108CBF802FE640BE3" box="[408,449,1927,1951]" pageId="14" pageNumber="98">The</collectorName>
|
||
suture shows little jagged lobes, a lengthened L lobe, a E lobe shorter than
|
||
<collectorName id="2686D5DAFFDBFFE10BFFF822FD560BC2" box="[684,755,1958,1982]" pageId="14" pageNumber="98">L. The</collectorName>
|
||
umbilical lobes are moderately developed, and the A lobe is slanting.
|
||
<collectorName id="2686D5DAFFDBFFE10847F860FE980B81" box="[276,317,2021,2045]" pageId="14" pageNumber="98">The</collectorName>
|
||
<specimenCode id="DBD51877FFDBFFE10815F863FEC80478" box="[326,365,2022,2052]" collectionCode="LS" country="United Kingdom" name="Linnean Society of London" pageId="14" pageNumber="98">
|
||
LS
|
||
<subScript id="17F7B249FFDBFFE10836F873FEC80478" attach="left" box="[357,365,2038,2052]" fontSize="6" pageId="14" pageNumber="98">1</subScript>
|
||
</specimenCode>
|
||
</materialsCitation>
|
||
<materialsCitation id="3B1BBA51FFDBFFE10821F860FC0D0D04" collectionCode="RIVAS, CARRERA" pageId="14" pageNumber="98" specimenCount="1" typeStatus="holotype">
|
||
saddle is narrow, and the ES saddle is about twice as wide as the former. The Apennines specimens are very close to GUEX’ s
|
||
<typeStatus id="54C80EAEFFDBFFE10DB5FE84FAE60D65" box="[1254,1347,257,281]" pageId="14" pageNumber="98" type="holotype">holotype</typeStatus>
|
||
for the ornament and the whorl section and coiling; they are less evolute than those figured by JIMÉNEZ JIMÉNEZ &
|
||
<collectionCode id="ED6228C9FFDBFFE10C08FEC7FC0D0D04" pageId="14" pageNumber="98">RIVAS CARRERA</collectionCode>
|
||
</materialsCitation>
|
||
(1992).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C369E387FFDBFFE10A6CFE04FBB908A9" pageId="14" pageNumber="98" type="discussion">
|
||
<paragraph id="8BCCB00CFFDBFFE10A6CFE04FC32080A" blockId="14.[831,1437,257,1238]" pageId="14" pageNumber="98">
|
||
<emphasis id="B9076C1EFFDBFFE10A6CFE04FABD0DE5" bold="true" box="[831,1304,385,409]" pageId="14" pageNumber="98">Remarks and comparative diagnosis:</emphasis>
|
||
HOWARTH (1992) believes that
|
||
<taxonomicName id="4C73CB8FFFDBFFE10D4BFE27FB220DC4" box="[1048,1159,417,441]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="striatus">
|
||
<emphasis id="B9076C1EFFDBFFE10D4BFE27FB220DC4" box="[1048,1159,417,441]" italics="true" pageId="14" pageNumber="98">H. striatus</emphasis>
|
||
</taxonomicName>
|
||
is a synonym of
|
||
<taxonomicName id="4C73CB8FFFDBFFE10C69FE24FC290DA5" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="wrighti">
|
||
<emphasis id="B9076C1EFFDBFFE10C69FE24FC290DA5" italics="true" pageId="14" pageNumber="98">Hildaites wrighti</emphasis>
|
||
</taxonomicName>
|
||
. In our opinion these are two well separate species. The ribs of
|
||
<taxonomicName id="4C73CB8FFFDBFFE10AEAFE64FB8C0D84" box="[953,1065,481,504]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="striatus">
|
||
<emphasis id="B9076C1EFFDBFFE10AEAFE64FB8C0D84" box="[953,1065,481,504]" italics="true" pageId="14" pageNumber="98">H. striatus</emphasis>
|
||
</taxonomicName>
|
||
are finer and denser, bifurcating or bundled with the typical striatures. On the contrary the ribs of
|
||
<taxonomicName id="4C73CB8FFFDBFFE10AC1FDA4FBA60E44" box="[914,1027,544,568]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="wrighti">
|
||
<emphasis id="B9076C1EFFDBFFE10AC1FDA4FBA60E44" box="[914,1027,544,568]" italics="true" pageId="14" pageNumber="98">H. wrighti</emphasis>
|
||
</taxonomicName>
|
||
are usually single, more falcoid and more projected on the ventro-lateral edge. Besides,
|
||
<taxonomicName id="4C73CB8FFFDBFFE10CD1FDC4FC290E04" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="wrighti">
|
||
<emphasis id="B9076C1EFFDBFFE10CD1FDC4FC290E04" italics="true" pageId="14" pageNumber="98">H. wrighti</emphasis>
|
||
</taxonomicName>
|
||
shows a greater shell involution, a more overlap of the whorls, a lesser rapid coiling increase, while
|
||
<taxonomicName id="4C73CB8FFFDBFFE10CD1FD04FC2A0EC4" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="striatus">
|
||
<emphasis id="B9076C1EFFDBFFE10CD1FD04FC2A0EC4" italics="true" pageId="14" pageNumber="98">H. striatus</emphasis>
|
||
</taxonomicName>
|
||
has a more compressed and evolute shell. The venter of
|
||
<taxonomicName id="4C73CB8FFFDBFFE10AE1FD44FB830EA4" box="[946,1062,704,728]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="wrighti">
|
||
<emphasis id="B9076C1EFFDBFFE10AE1FD44FB830EA4" box="[946,1062,704,728]" italics="true" pageId="14" pageNumber="98">H. wrighti</emphasis>
|
||
</taxonomicName>
|
||
is bisulcate, narrower and more acute-keeled than of
|
||
<taxonomicName id="4C73CB8FFFDBFFE10D7FFD65FB070E8B" box="[1068,1186,736,759]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="striatus">
|
||
<emphasis id="B9076C1EFFDBFFE10D7FFD65FB070E8B" box="[1068,1186,736,759]" italics="true" pageId="14" pageNumber="98">H. striatus</emphasis>
|
||
</taxonomicName>
|
||
, which is flat without sulci. The umbilical wall of
|
||
<taxonomicName id="4C73CB8FFFDBFFE10D3BFC85FB7D0F6B" box="[1128,1240,768,791]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="striatus">
|
||
<emphasis id="B9076C1EFFDBFFE10D3BFC85FB7D0F6B" box="[1128,1240,768,791]" italics="true" pageId="14" pageNumber="98">H. striatus</emphasis>
|
||
</taxonomicName>
|
||
is lower and more sloped than of
|
||
<taxonomicName id="4C73CB8FFFDBFFE10ABCFCA5FBC70F4B" box="[1007,1122,799,823]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="wrighti">
|
||
<emphasis id="B9076C1EFFDBFFE10ABCFCA5FBC70F4B" box="[1007,1122,799,823]" italics="true" pageId="14" pageNumber="98">H. wrighti</emphasis>
|
||
</taxonomicName>
|
||
, which is higher and more rounded. Despite of the remarkable likeness between
|
||
<taxonomicName id="4C73CB8FFFDBFFE10A6CFCE5FC160F0B" box="[831,947,864,887]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="striatus">
|
||
<emphasis id="B9076C1EFFDBFFE10A6CFCE5FC160F0B" box="[831,947,864,887]" italics="true" pageId="14" pageNumber="98">H. striatus</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C73CB8FFFDBFFE10ABEFCE5FB150F0B" box="[1005,1200,863,887]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="subserpentinus">
|
||
<emphasis id="B9076C1EFFDBFFE10ABEFCE5FB150F0B" box="[1005,1200,863,887]" italics="true" pageId="14" pageNumber="98">H. subserpentinus</emphasis>
|
||
</taxonomicName>
|
||
, which also have the same stratigraphic occurrence, the former differs from the later by having finer and denser ribs, which are from bifurcating to bundled, more sinuous and projected on the ventro-lateral edge chiefly in the outer whorls and in the body chamber. The two Grecian specimens assigned by KOTTEK (1966, pl. 5, fig. 3 and pl. 6, fig. 1) to
|
||
<taxonomicName id="4C73CB8FFFDBFFE10C69FB9BFB87082A" authority="(TATE, 1895)" baseAuthorityName="TATE" baseAuthorityYear="1895" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="acutus">
|
||
<emphasis id="B9076C1EFFDBFFE10C69FB9BFC20082A" italics="true" pageId="14" pageNumber="98">Hildaites acutus</emphasis>
|
||
(TATE, 1895)
|
||
</taxonomicName>
|
||
probably must be assigned to
|
||
<taxonomicName id="4C73CB8FFFDBFFE10CD1FBBAFC2A080A" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="striatus">
|
||
<emphasis id="B9076C1EFFDBFFE10CD1FBBAFC2A080A" italics="true" pageId="14" pageNumber="98">H. striatus</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="8BCCB00CFFDBFFE10A6CFBFBFBB908A9" blockId="14.[831,1437,257,1238]" pageId="14" pageNumber="98">
|
||
<emphasis id="B9076C1EFFDBFFE10A6CFBFBFC6808EA" bold="true" box="[831,973,1150,1174]" pageId="14" pageNumber="98">Occurrence:</emphasis>
|
||
<taxonomicName id="4C73CB8FFFDBFFE10A80FBFAFB8308EA" box="[979,1062,1151,1174]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="striatus">
|
||
<emphasis id="B9076C1EFFDBFFE10A80FBFAFB8308EA" box="[979,1062,1151,1174]" italics="true" pageId="14" pageNumber="98">Striatus</emphasis>
|
||
</taxonomicName>
|
||
zone. We choose
|
||
<taxonomicName id="4C73CB8FFFDBFFE10DB7FBFBFA3908EA" box="[1252,1436,1150,1174]" class="Cephalopoda" family="Hildoceratidae" genus="Hildaites" kingdom="Animalia" order="Ammonoidea" pageId="14" pageNumber="98" phylum="Mollusca" rank="species" species="striatus">
|
||
<emphasis id="B9076C1EFFDBFFE10DB7FBFBFA3908EA" box="[1252,1436,1150,1174]" italics="true" pageId="14" pageNumber="98">Hildaites striatus</emphasis>
|
||
</taxonomicName>
|
||
as zonal index of early Toarcian (post-OAE) of the Apennines outcrops.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |