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<document id="BC589F0DCEB973EC3CF8885E7BCBABE9" ID-CLB-Dataset="8084" ID-DOI="10.5252/geodiversitas2021v43a4" ID-GBIF-Dataset="cd541dad-c385-42c7-848c-4303c55a10d7" ID-ISSN="1638-9395" ID-Zenodo-Dep="4555560" ID-ZooBank="urn:lsid:zoobank.org:pub:D3197095-E2DE-44AD-AA1D-80A8781199C0" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatmentCitations_approvedBy="felipe" checkinTime="1613997888832" checkinUser="felipe" docAuthor="Fauré, Philippe, Sekatni, Nejla, Arfaoui, Mohamed Sabri &amp; Alouani, Rabah" docDate="2021" docId="691087FCFF97FFF6B3ACFCCADFC4FAEA" docLanguage="fr" docName="Geodiversitas 43.4.95-119.pdf.imf" docOrigin="Geodiversitas 43 (4)" docStyle="DocumentStyle:F830B10FF475E64C1F1601E3B32DDC00.4:Geodiversitas.2018-.journal_article" docStyleId="F830B10FF475E64C1F1601E3B32DDC00" docStyleName="Geodiversitas.2018-.journal_article" docStyleVersion="4" docTitle="Arnioceras ceratitoides Hyatt 1867" docType="treatment" docVersion="8" lastPageNumber="105" masterDocId="9529FF84FF9BFFFAB37EFFFFDC18FFE7" masterDocTitle="Le Jurassique du Jebel Ressas (Tunisie). Identification du Sinémurien supérieur dans la Formation Zaghouan. Précisions stratigraphiques et paléobiogéographiques sur le Sinémurien de Tunisie" masterLastPageNumber="119" masterPageNumber="95" pageNumber="105" updateTime="1698930737569" updateUser="ExternalLinkService" zenodo-license-document="CC0-1.0" zenodo-license-figures="CC0-1.0">
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<mods:title id="C384FEE35A7EBB5F91737F8633E86554">Le Jurassique du Jebel Ressas (Tunisie). Identification du Sinémurien supérieur dans la Formation Zaghouan. Précisions stratigraphiques et paléobiogéographiques sur le Sinémurien de Tunisie</mods:title>
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<mods:namePart id="F03C6508C9F9BA19656270804C2DE9B7">Fauré, Philippe</mods:namePart>
<mods:affiliation id="35075F1C36228AFCA79ECA89633EBDF5">Centre dACP, 47 rue Théron Périé, BP 30205, F- 81104 Castres cedex (France) et Muséum dHistoire Naturelle de Toulouse, F- 31000, Toulouse (France)</mods:affiliation>
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<mods:namePart id="A1C7C20BCE715CDD6450643517A22D9F">Sekatni, Nejla</mods:namePart>
<mods:affiliation id="675B9523812FE51138086792CE7607A7">Université de Sousse, faculté des Lettres et des Sciences Humaines de Sousse, Département de géographie Cité Erriadh, 4029 Sousse Ryadh, Sousse (Tunisie)</mods:affiliation>
<mods:nameIdentifier id="ED8B1836BEA49110D00DF7C4B85FE670" type="email">sgatninejla@yahoo.fr</mods:nameIdentifier>
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<mods:namePart id="FAAA07A619A1002500213BFC0B07451F">Arfaoui, Mohamed Sabri</mods:namePart>
<mods:affiliation id="5DCD7E597D52D38B63166F9105EBB59A">Département de géologie, faculté des sciences de Tunis, 1060 El Manar II, Tunis (Tunisie)</mods:affiliation>
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<mods:namePart id="B3660403045E7DA7528EA39660A12891">Alouani, Rabah</mods:namePart>
<mods:affiliation id="B270F080C2F52C77407BF4445982B5C8">Département de géologie, faculté des sciences de Bizerte, Université de Carthage 7021 Zerzouna Bizerte (Tunisie)</mods:affiliation>
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<mods:title id="BD766356606A0E8B486C5CB6936BB1FB">Geodiversitas</mods:title>
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<mods:date id="067C7FED05790BB070D788A2BC5860FE">2021</mods:date>
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<mods:number id="BD577F496478E5B87B6D63BB848D084F">2021-02-18</mods:number>
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<mods:number id="1362D84B6E5EFA6B9CC636D0942839A6">43</mods:number>
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<mods:number id="26C50896DAFA65BFA58441CA5CBAAB3E">4</mods:number>
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<treatment id="691087FCFF97FFF6B3ACFCCADFC4FAEA" ID-DOI="http://doi.org/10.5281/zenodo.4555584" ID-GBIF-Taxon="179903469" ID-Zenodo-Dep="4555584" LSID="urn:lsid:plazi:treatment:691087FCFF97FFF6B3ACFCCADFC4FAEA" httpUri="http://treatment.plazi.org/id/691087FCFF97FFF6B3ACFCCADFC4FAEA" lastPageNumber="105" pageId="12" pageNumber="105">
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<paragraph id="E10636EAFF97FFF6B3ACFCCADE22FC88" blockId="12.[210,697,821,879]" pageId="12" pageNumber="105">
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<taxonomicName id="26B94D69FF97FFF6B3ACFCCADE22FC88" ID-CoL="334C" authority="(Quenstedt, 1849)" authorityName="Hyatt" authorityYear="1867" baseAuthorityName="Quenstedt" baseAuthorityYear="1849" class="Cephalopoda" family="Arietitidae" genus="Arnioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="12" pageNumber="105" phylum="Mollusca" rank="genus">
<emphasis id="D3CDEAF8FF97FFF6B3ACFCCADD5DFCA8" bold="true" box="[210,325,821,847]" italics="true" pageId="12" pageNumber="105">Arnioceras</emphasis>
gr.
<emphasis id="D3CDEAF8FF97FFF6B210FCCADDF0FCB7" bold="true" box="[366,488,821,848]" italics="true" pageId="12" pageNumber="105">ceratitoides</emphasis>
(Quenstedt, 1849)
<emphasis id="D3CDEAF8FF97FFF6B22FFCA9DDB0FC88" box="[337,424,854,879]" italics="true" pageId="12" pageNumber="105">rejectum</emphasis>
<bibRefCitation id="85284B1BFF97FFF6B2D1FCAADE22FC88" author="FUCINI A." box="[431,570,853,879]" pageId="12" pageNumber="105" pagination="91 - 177" refId="ref19915" refString="FUCINI A. 1902. - Cefalopodi Liassici del Monte di Cetona. Palaeontographia Italica 8: 91 - 177." type="journal article" year="1902">Fucini, 1902</bibRefCitation>
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<paragraph id="E10636EAFF97FFF6B206FC8ADE0BFC68" blockId="12.[376,531,885,911]" box="[376,531,885,911]" pageId="12" pageNumber="105">(Fig. 7C1-C3)</paragraph>
</subSubSection>
<subSubSection id="A9A36561FF97FFF6B3FAFC51DF10FB88" pageId="12" pageNumber="105" type="reference_group">
<paragraph id="E10636EAFF97FFF6B3FAFC51DE86FC21" blockId="12.[132,670,942,966]" box="[132,670,942,966]" pageId="12" pageNumber="105">
<treatmentCitationGroup id="C1A911C4FF97FFF6B3FAFC51DE86FC21" box="[132,670,942,966]" pageId="12" pageNumber="105">
<treatmentCitation id="601810FBFF97FFF6B3FAFC51DE86FC21" box="[132,670,942,966]" pageId="12" pageNumber="105">
<emphasis id="D3CDEAF8FF97FFF6B3FAFC51DCF4FC22" box="[132,236,942,965]" italics="true" pageId="12" pageNumber="105">Ammonites</emphasis>
<taxonomicName id="26B94D69FF97FFF6B38DFC51DE11FC21" ID-CoL="334C" authority="Quenstedt, 1849" authorityName="Quenstedt" authorityYear="1849" box="[243,521,942,966]" class="Cephalopoda" family="Arietitidae" genus="Arnioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="12" pageNumber="105" phylum="Mollusca" rank="species" species="ceratitoides">
<emphasis id="D3CDEAF8FF97FFF6B38DFC51DD42FC21" box="[243,346,942,966]" italics="true" pageId="12" pageNumber="105">ceratitoides</emphasis>
Quenstedt, 1849
</taxonomicName>
: pl. 19, fig. 13.
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</paragraph>
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<treatmentCitationGroup id="C1A911C4FF97FFF6B3FAFC21DF1FFC12" box="[132,775,989,1014]" pageId="12" pageNumber="105">
<treatmentCitation id="601810FBFF97FFF6B3FAFC21DF1FFC12" box="[132,775,989,1014]" pageId="12" pageNumber="105">
<taxonomicName id="26B94D69FF97FFF6B3FAFC21DDA3FC11" ID-CoL="GT89" authority="Fucini, 1902" authorityName="Fucini" authorityYear="1902" box="[132,443,989,1014]" class="Cephalopoda" family="Arietitidae" genus="Arnioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="12" pageNumber="105" phylum="Mollusca" rank="species" species="rejectum">
<emphasis id="D3CDEAF8FF97FFF6B3FAFC21DD21FC12" box="[132,313,990,1013]" italics="true" pageId="12" pageNumber="105">Arnioceras rejectum</emphasis>
<bibRefCitation id="85284B1BFF97FFF6B240FC22DDA3FC11" author="FUCINI A." box="[318,443,989,1014]" pageId="12" pageNumber="105" pagination="91 - 177" refId="ref19915" refString="FUCINI A. 1902. - Cefalopodi Liassici del Monte di Cetona. Palaeontographia Italica 8: 91 - 177." type="journal article" year="1902">Fucini, 1902</bibRefCitation>
</taxonomicName>
: pl. 14, fig. 12-14; pl. 16, fig. 1-6.
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</paragraph>
<paragraph id="E10636EAFF97FFF6B3FAFBF2DD54FBA7" blockId="12.[132,775,1037,1088]" pageId="12" pageNumber="105">
<treatmentCitationGroup id="C1A911C4FF97FFF6B3FAFBF2DD54FBA7" pageId="12" pageNumber="105">
<taxonomicName id="26B94D69FF97FFF6B3FAFBF2DD4BFBC2" ID-CoL="334C" authorityName="Quenstedt" authorityYear="1849" box="[132,339,1037,1061]" class="Cephalopoda" family="Arietitidae" genus="Arnioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="12" pageNumber="105" phylum="Mollusca" rank="species" species="ceratitoides">
<emphasis id="D3CDEAF8FF97FFF6B3FAFBF2DD4BFBC2" box="[132,339,1037,1061]" italics="true" pageId="12" pageNumber="105">Arnioceras ceratitoides</emphasis>
</taxonomicName>
<treatmentCitation id="601810FBFF97FFF6B211FBF2DD54FBA7" pageId="12" pageNumber="105">
<bibRefCitation id="85284B1BFF97FFF6B211FBF2DE49FBC2" author="MEISTER C. &amp; BOHM F." box="[367,593,1037,1061]" pageId="12" pageNumber="105" pagination="163 - 211" refId="ref20495" refString="MEISTER C. &amp; BOHM F. 1993. - Austroalpine Liassic Ammonites from the Adnet Formation (Northern Calcareous Alps). Jahrbuch der Geologischen Bundesanstalt 136 (1): 163 - 211." type="journal article" year="1993">Meister &amp; Böhm 1993</bibRefCitation>
: pl. 4, fig. 3, 5, 6, 10, avec synonymie.
</treatmentCitation>
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</paragraph>
<paragraph id="E10636EAFF97FFF6B3FAFBA8DF10FB88" blockId="12.[132,776,1111,1136]" box="[132,776,1111,1136]" pageId="12" pageNumber="105">
<treatmentCitationGroup id="C1A911C4FF97FFF6B3FAFBA8DF10FB88" box="[132,776,1111,1136]" pageId="12" pageNumber="105">
<taxonomicName id="26B94D69FF97FFF6B3FAFBA8DD4EFB88" ID-CoL="GT89" authorityName="Hyatt" authorityYear="1867" box="[132,342,1111,1136]" class="Cephalopoda" family="Arietitidae" genus="Arnioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="12" pageNumber="105" phylum="Mollusca" rank="genus">
<emphasis id="D3CDEAF8FF97FFF6B3FAFBA8DCFDFB89" box="[132,229,1111,1134]" italics="true" pageId="12" pageNumber="105">Arnioceras</emphasis>
gr.
<emphasis id="D3CDEAF8FF97FFF6B279FBA7DD4EFB88" box="[263,342,1112,1135]" italics="true" pageId="12" pageNumber="105">rejectum</emphasis>
</taxonomicName>
<treatmentCitation id="601810FBFF97FFF6B215FBA8DE47FB88" author="EL HARIRI K. &amp; DOMMERGUES J. - L. &amp; MEISTER C. &amp; CHAFIKI D." box="[363,607,1111,1135]" page="232" pageId="12" pageNumber="105" year="2010">
<bibRefCitation id="85284B1BFF97FFF6B215FBA8DE47FB88" author="EL HARIRI K. &amp; DOMMERGUES J. - L. &amp; MEISTER C. &amp; CHAFIKI D." box="[363,607,1111,1135]" pageId="12" pageNumber="105" pagination="217 - 260" refId="ref19420" refString="EL HARIRI K., DOMMERGUES J. - L., MEISTER C. &amp; CHAFIKI D. 2010. - Nouvelles donnees sur les ammonites du Sinemurien et du Pliensbachien basal du Haut-Atlas central (Maroc). Taxonomie et implication stratigraphiques et paleobiogeographiques. Revue de Paleobiologie 29: 217 - 260." type="journal article" year="2010">
El Hariri
<emphasis id="D3CDEAF8FF97FFF6B2B8FBA7DDECFB88" box="[454,500,1111,1135]" italics="true" pageId="12" pageNumber="105">et al.</emphasis>
2010: 232
</bibRefCitation>
</treatmentCitation>
, avec synonymie.
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="A9A36561FF97FFF6B3FAFB78DCE8FB5E" pageId="12" pageNumber="105" type="materials_examined">
<paragraph id="E10636EAFF97FFF6B3FAFB78DCE8FB5E" blockId="12.[132,776,1159,1209]" pageId="12" pageNumber="105">
MATÉRIEL EXAMINÉ. — Jebel Ressas, Paroi Rouge, niv. 20.
<specimenCount id="F7BFFD63FF97FFF6B1A9FB78DF10FB79" box="[727,776,1159,1183]" pageId="12" pageNumber="105" type="generic">1 ex.</specimenCount>
(PFT201).
</paragraph>
</subSubSection>
<subSubSection id="A9A36561FF97FFF6B3FAFB0BDD99F9CA" pageId="12" pageNumber="105" type="description">
<paragraph id="E10636EAFF97FFF6B3FAFB0BDD0DFAEB" blockId="12.[130,776,1268,1581]" box="[132,277,1268,1294]" pageId="12" pageNumber="105">DESCRIPTION</paragraph>
<paragraph id="E10636EAFF97FFF6B3FAFAECDD99F9CA" blockId="12.[130,776,1268,1581]" pageId="12" pageNumber="105">
Malgré son mauvais état de conservation, cet
<taxonomicName id="26B94D69FF97FFF6B13AFAEBDEB1FAC9" authorityName="Hyatt" authorityYear="1867" box="[580,681,1300,1326]" class="Cephalopoda" family="Arietitidae" genus="Arnioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="12" pageNumber="105" phylum="Mollusca" rank="genus">
<emphasis id="D3CDEAF8FF97FFF6B13AFAEBDEB1FAC9" box="[580,681,1300,1326]" italics="true" pageId="12" pageNumber="105">Arnioceras</emphasis>
</taxonomicName>
de petite taille est bien caractérisé par un stade lisse court, nexcédant pas
<quantity id="26419B0FFF97FFF6B3CEFAACDCEBFA89" box="[176,243,1363,1390]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" pageId="12" pageNumber="105" unit="mm" value="5.0">5 mm</quantity>
de longueur, auquel succède une costulation de densité moyenne faite de côtes tranchantes au tracé tendu, très en relief au rebord ventral, avant leur projection ventrale très courte (
<figureCitation id="79822A6FFF97FFF6B3ABFA4CDD39FA2A" box="[213,289,1459,1485]" captionStart="FIG" captionStartId="6.[132,143,1435,1452]" captionTargetBox="[138,1450,215,1394]" captionTargetId="figure-227@6.[138,1450,215,1394]" captionTargetPageId="6" captionText="FIG. 3. — A, photographie aérienne du Grand Ressas (daprès Google Earth). Localisation de la coupe étudiée au lieu-dit Paroi rouge, au niveau du gradin le plus élevé de la carrière du Ressas; B, vue générale de la coupe de Paroi Rouge: Trait pointillés rouges, limites des formations lithostratigraphiques. Les encadrés C et D matérialisent les gros plans suivants: C, photographie du sommet de la Fm Oust et de la partie inférieure de la Fm Zaghouan; D; photographie de la partie supérieure de la Fm Zaghouan et de la base de la Fm Bou Gabrine." figureDoi="http://doi.org/10.5281/zenodo.4555568" httpUri="https://zenodo.org/record/4555568/files/figure.png" pageId="12" pageNumber="105">Fig. 3a</figureCitation>
). La section est subrectangulaire, comprimée, et lenroulement moyennement évolute. La carène, peu élevée, est bordée de méplats creusés de sillons bien marqués mais peu profonds (
<figureCitation id="79822A6FFF97FFF6B25AF9EDDD6CF9CA" box="[292,372,1554,1581]" captionStart="FIG" captionStartId="6.[132,143,1435,1452]" captionTargetBox="[138,1450,215,1394]" captionTargetId="figure-227@6.[138,1450,215,1394]" captionTargetPageId="6" captionText="FIG. 3. — A, photographie aérienne du Grand Ressas (daprès Google Earth). Localisation de la coupe étudiée au lieu-dit Paroi rouge, au niveau du gradin le plus élevé de la carrière du Ressas; B, vue générale de la coupe de Paroi Rouge: Trait pointillés rouges, limites des formations lithostratigraphiques. Les encadrés C et D matérialisent les gros plans suivants: C, photographie du sommet de la Fm Oust et de la partie inférieure de la Fm Zaghouan; D; photographie de la partie supérieure de la Fm Zaghouan et de la base de la Fm Bou Gabrine." figureDoi="http://doi.org/10.5281/zenodo.4555568" httpUri="https://zenodo.org/record/4555568/files/figure.png" pageId="12" pageNumber="105">Fig. 3b</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="A9A36561FF97FFF6B3FAF9ACD8C8FEB6" pageId="12" pageNumber="105" type="discussion">
<paragraph id="E10636EAFF97FFF6B3FAF9ACDD1EF98C" blockId="12.[129,777,1619,2028]" box="[132,262,1619,1645]" pageId="12" pageNumber="105">DISCUSSION</paragraph>
<paragraph id="E10636EAFF97FFF6B3FAF98CD8C8FEB6" blockId="12.[129,777,1619,2028]" lastBlockId="12.[813,1456,215,337]" pageId="12" pageNumber="105">
Les
<taxonomicName id="26B94D69FF97FFF6B3CCF98CDDD5F96B" authority="du Sinemurien" authorityName="du Sinemurien" box="[178,461,1650,1677]" class="Cephalopoda" family="Arietitidae" genus="Arnioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="12" pageNumber="105" phylum="Mollusca" rank="genus">
<emphasis id="D3CDEAF8FF97FFF6B3CCF98CDD07F96A" box="[178,287,1651,1677]" italics="true" pageId="12" pageNumber="105">Arnioceras</emphasis>
du Sinémurien
</taxonomicName>
supérieur téthysien sont un groupe très variable, en termes de densité de costulation et de section du tour, dont le large spectre morphologique est très bien illustré par la multiplication des «espèces » de
<bibRefCitation id="85284B1BFF97FFF6B1BCF92DDCCAF8EB" author="FUCINI A." pageId="12" pageNumber="105" pagination="91 - 177" refId="ref19915" refString="FUCINI A. 1902. - Cefalopodi Liassici del Monte di Cetona. Palaeontographia Italica 8: 91 - 177." type="journal article" year="1902">Fucini (1902)</bibRefCitation>
. Ces formes ont longtemps été regroupées sous le taxon de
<taxonomicName id="26B94D69FF97FFF6B397F8EDDD61F8CB" authorityName="Quenstedt" authorityYear="1849" box="[233,377,1810,1836]" class="Cephalopoda" family="Arietitidae" genus="Arnioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="12" pageNumber="105" phylum="Mollusca" rank="species" species="ceratitoides">
<emphasis id="D3CDEAF8FF97FFF6B397F8EDDD61F8CB" box="[233,377,1810,1836]" italics="true" pageId="12" pageNumber="105">A. ceratitoides</emphasis>
</taxonomicName>
, qui est une espèce dAdneth figurée par Quenstedt (1849) et plusieurs fois interprétée par les auteurs (
<bibRefCitation id="85284B1BFF97FFF6B39CF8AEDDAEF88B" author="SCHLEGELMILCH R." box="[226,438,1873,1900]" pageId="12" pageNumber="105" refId="ref21688" refString="SCHLEGELMILCH R. 1992. - Die Ammoniten des Suddeutschen Lias. Ein Bestimmungsbuch fur Fossiliensammler und Geologen. 2. Auflage. G. Fischer Verlag, Stuttgart, Jena, New-York, 241 p." type="book" year="1992">Schlegelmilch 1992</bibRefCitation>
;
<bibRefCitation id="85284B1BFF97FFF6B2BAF8AEDEE1F88C" author="CASSINIS G. &amp; CANTALUPPI G." box="[452,761,1873,1900]" pageId="12" pageNumber="105" pagination="51 - 64" refId="ref18208" refString="CASSINIS G. &amp; CANTALUPPI G. 1967. - Nuovi dati paleontologici per una piu approfondita conoscenza del limite cronologico superiore della &quot; Corna &quot; di Botticino (Brescia). Atti dell'istituto geologico della universita di Pavia XVIII: 51 - 64." type="journal article" year="1967">Cassinis &amp; Cantaluppi 1967</bibRefCitation>
;
<bibRefCitation id="85284B1BFF97FFF6B3FFF88EDDBEF86C" author="CANTALUPPI G. &amp; CORTI S." box="[129,422,1905,1931]" pageId="12" pageNumber="105" pagination="103 - 133" refId="ref18253" refString="CANTALUPPI G. &amp; CORTI S. 1969. - La fauna della &quot; piedra di Moltrasio &quot; (Como). Societa Italiana di Scienza Naturali e del Museo civico di Storia naturale di Milano 60 (2): 103 - 133." type="journal article" year="1969">Cantaluppi &amp; Corti 1969</bibRefCitation>
;
<bibRefCitation id="85284B1BFF97FFF6B2C4F88EDE37F86C" author="BLAU J." box="[442,559,1905,1931]" pageId="12" pageNumber="105" pagination="177 - 285" refId="ref17719" refString="BLAU J. 1998. - Monographie der Ammoniten des Obersinemurium (Lotharingium, Lias) der Lienzer Dolomiten (Osterreich): Biostratigraphie, Systematik and Palaobiogeographie. Revue de Paleobiologie 17 (1): 177 - 285." type="journal article" year="1998">Blau 1998</bibRefCitation>
;
<bibRefCitation id="85284B1BFF97FFF6B13DF88EDCA4F84C" author="GECZY B. &amp; MEISTER C." pageId="12" pageNumber="105" pagination="137 - 305" refId="ref19957" refString="GECZY B. &amp; MEISTER C. 2007. - Les ammonites du Sinemurien et du Pliensbachien inferieur de la Montagne du Bakony (Hongrie). Revue de Paleobiologie 26 (1): 137 - 305." type="journal article" year="2007">Géczy &amp; Meister 2007</bibRefCitation>
). Constatant que les âges et les provenances de tous les spécimens figurés par Fucini étaient à peu près identiques,
<bibRefCitation id="85284B1BFF97FFF6B3F8F82DDDBCF80B" author="DOMMERGUES J. - L. &amp; FERRETI A. &amp; MEISTER C." box="[134,420,2001,2028]" pageId="12" pageNumber="105" pagination="13 - 42" refId="ref19003" refString="DOMMERGUES J. - L., FERRETI A. &amp; MEISTER C. 1994. - Les faunes du Sinemurien de l'Apennin Central (Marches et Toscane, Italie). Bolletino della Societa Paleontologica Italiana 33 (1): 13 - 42." type="journal article" year="1994">
Dommergues
<emphasis id="D3CDEAF8FF97FFF6B261F82DDD4BF80C" box="[287,339,2001,2027]" italics="true" pageId="12" pageNumber="105">et al.</emphasis>
(1994)
</bibRefCitation>
les rapportent à une seule entité spécifique très variable dont la forme moyenne est
<taxonomicName id="26B94D69FF97FFF6B624FF27DF4FFEF6" authorityName="Fucini" authorityYear="1902" class="Cephalopoda" family="Arietitidae" genus="Arnioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="12" pageNumber="105" phylum="Mollusca" rank="species" species="rejectum">
<emphasis id="D3CDEAF8FF97FFF6B624FF27DF4FFEF6" italics="true" pageId="12" pageNumber="105">A. rejectum</emphasis>
</taxonomicName>
. Il est très vraisemblable que
<taxonomicName id="26B94D69FF97FFF6B7F5FF08D902FEF6" authorityName="Quenstedt" authorityYear="1849" box="[1163,1306,247,273]" class="Cephalopoda" family="Arietitidae" genus="Arnioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="12" pageNumber="105" phylum="Mollusca" rank="species" species="ceratitoides">
<emphasis id="D3CDEAF8FF97FFF6B7F5FF08D902FEF6" box="[1163,1306,247,273]" italics="true" pageId="12" pageNumber="105">A. ceratitoides</emphasis>
</taxonomicName>
et
<taxonomicName id="26B94D69FF97FFF6B647FF08D9B5FEF6" authorityName="Fucini" authorityYear="1902" box="[1337,1453,247,273]" class="Cephalopoda" family="Arietitidae" genus="Arnioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="12" pageNumber="105" phylum="Mollusca" rank="species" species="rejectum">
<emphasis id="D3CDEAF8FF97FFF6B647FF08D9B5FEF6" box="[1337,1453,247,273]" italics="true" pageId="12" pageNumber="105">A. rejectum</emphasis>
</taxonomicName>
ne forment quune seule et même espèce, dans le spectre de laquelle nous incluons notre spécimen.
</paragraph>
</subSubSection>
<subSubSection id="A9A36561FF97FFF6B053FE89DFC4FAEA" pageId="12" pageNumber="105" type="description">
<paragraph id="E10636EAFF97FFF6B053FE89D815FE77" blockId="12.[811,1463,374,1293]" box="[813,1037,374,403]" pageId="12" pageNumber="105">ÂGE ET RÉPARTITION</paragraph>
<paragraph id="E10636EAFF97FFF6B053FE69D872FDF7" blockId="12.[811,1463,374,1293]" pageId="12" pageNumber="105">
Récolté avec
<taxonomicName id="26B94D69FF97FFF6B0BFFE68D829FE56" authorityName="Hyatt" authorityYear="1867" box="[961,1073,407,433]" class="Cephalopoda" family="Arietitidae" genus="Asteroceras" kingdom="Animalia" order="Psiloceratida" pageId="12" pageNumber="105" phylum="Mollusca" rank="genus">
<emphasis id="D3CDEAF8FF97FFF6B0BFFE68D829FE56" box="[961,1073,407,433]" italics="true" pageId="12" pageNumber="105">Asteroceras</emphasis>
</taxonomicName>
gr.
<taxonomicName id="26B94D69FF97FFF6B721FE69D969FE56" authority="(Parona, 1896)" baseAuthorityName="Parona" baseAuthorityYear="1896" box="[1119,1393,406,433]" class="Cephalopoda" family="Arietitidae" genus="Arietites" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="12" pageNumber="105" phylum="Mollusca" rank="species" species="saltriensis">
<emphasis id="D3CDEAF8FF97FFF6B721FE69D8DBFE57" box="[1119,1219,406,432]" italics="true" pageId="12" pageNumber="105">saltriensis</emphasis>
(
<bibRefCitation id="85284B1BFF97FFF6B7ACFE68D971FE56" author="PARONA C. F." box="[1234,1385,406,433]" pageId="12" pageNumber="105" pagination="1 - 45" refId="ref21063" refString="PARONA C. F. 1896. - Contribuzione alla conoscenza delle Ammoniti liasiche di Lombardia. Parte I: Ammoniti del Lias inferiore. Memoires de la Societe paleontologique Suisse 23: 1 - 45." type="journal article" year="1896">Parona, 1896</bibRefCitation>
)
</taxonomicName>
et
<taxonomicName id="26B94D69FF97FFF6B6E7FE68D9B3FE36" authority="Dommergues, Meister &amp; Mettraux, 1990" authorityName="Dommergues, Meister &amp; Mettreaux" authorityYear="1990" class="Cephalopoda" family="Arietitidae" genus="Asteroceras" kingdom="Animalia" order="Psiloceratida" pageId="12" pageNumber="105" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="D3CDEAF8FF97FFF6B6E7FE68D9B0FE56" box="[1433,1448,407,433]" italics="true" pageId="12" pageNumber="105">A</emphasis>
. cf.
<emphasis id="D3CDEAF8FF97FFF6B02EFE49DFCAFE37" box="[848,978,438,464]" italics="true" pageId="12" pageNumber="105">meridionalis</emphasis>
<bibRefCitation id="85284B1BFF97FFF6B0A5FE48D9B3FE36" author="DOMMERGUES J. - L. &amp; C. MEISTER &amp; METTRAUX M." box="[987,1451,438,465]" pageId="12" pageNumber="105" pagination="307 - 341" refId="ref18939" refString="DOMMERGUES J. - L., C. MEISTER &amp; METTRAUX M. 1990. - Succession des faunes d'ammonites du Sinemurien et du Pliensbachien dans les Prealpes romandes (Vaud et Fribourg). Geobios 23 (3): 307 - 341. https: // doi. org / 10.1016 / 0016 - 6995 (90) 80004 - Y" type="journal article" year="1990">Dommergues, Meister &amp; Mettraux, 1990</bibRefCitation>
</taxonomicName>
, notre spécimen provient clairement de la partie terminale de la sous-chronozone à Stellare.
</paragraph>
<paragraph id="E10636EAFF97FFF6B03DFDE8D8BEFC68" blockId="12.[811,1463,374,1293]" pageId="12" pageNumber="105">
Les
<taxonomicName id="26B94D69FF97FFF6B012FDE9DFCFFDD7" box="[876,983,534,560]" class="Cephalopoda" family="Arietitidae" genus="Arnioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="12" pageNumber="105" phylum="Mollusca" rank="genus">
<emphasis id="D3CDEAF8FF97FFF6B012FDE9DFCFFDD7" box="[876,983,534,560]" italics="true" pageId="12" pageNumber="105">Arnioceras</emphasis>
</taxonomicName>
du groupe de
<taxonomicName id="26B94D69FF97FFF6B715FDE9D9B6FDD7" box="[1131,1454,534,560]" class="Cephalopoda" family="Arietitidae" genus="Arnioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="12" pageNumber="105" phylum="Mollusca" rank="species" species="ceratitoides-rejectum">
<emphasis id="D3CDEAF8FF97FFF6B715FDE9D9B6FDD7" box="[1131,1454,534,560]" italics="true" pageId="12" pageNumber="105">Arnioceras ceratitoides-rejectum</emphasis>
</taxonomicName>
sont souvent cités dans le Sinémurien supérieur de la région méditerranéenne où ils caractérisent une large plage de temps. Ils recouvrent toute la durée de la chronozone à Obtusum dans lAustroalpin (
<bibRefCitation id="85284B1BFF97FFF6B0B5FD69D8D2FD57" author="MEISTER C. &amp; BOHM F." box="[971,1226,662,688]" pageId="12" pageNumber="105" pagination="163 - 211" refId="ref20495" refString="MEISTER C. &amp; BOHM F. 1993. - Austroalpine Liassic Ammonites from the Adnet Formation (Northern Calcareous Alps). Jahrbuch der Geologischen Bundesanstalt 136 (1): 163 - 211." type="journal article" year="1993">Meister &amp; Böhm 1993</bibRefCitation>
;
<bibRefCitation id="85284B1BFF97FFF6B7A4FD69DF7DFD37" author="DOMMERGUES J. - L. &amp; MEISTER C. &amp; BOHM F." pageId="12" pageNumber="105" pagination="161 - 205" refId="ref19049" refString="DOMMERGUES J. - L., MEISTER C. &amp; BOHM F. 1995. - New data on Austroalpine Liassic Ammonites from the Adnet quarries and adjacent areas (berosterreich, Northern Calcareous Alps). Jahrbuch des Geologischen Bundesanstalt 138: 161 - 205." type="journal article" year="1995">
Dommergues
<emphasis id="D3CDEAF8FF97FFF6B604FD69D9A8FD57" box="[1402,1456,662,688]" italics="true" pageId="12" pageNumber="105">et al.</emphasis>
1995
</bibRefCitation>
;
<bibRefCitation id="85284B1BFF97FFF6B00CFD4AD872FD37" author="MEISTER C. &amp; FRIEBE J. G." box="[882,1130,693,720]" pageId="12" pageNumber="105" pagination="9 - 99" refId="ref20531" refString="MEISTER C. &amp; FRIEBE J. G. 2003. - Austroalpine Liassic Ammonites from Vorarlberg (Austria, Northern Calcareous Alps). Beitrage zur Palaontologie 28: 9 - 99." type="journal article" year="2003">Meister &amp; Friebe 2003</bibRefCitation>
), les Apennins (
<bibRefCitation id="85284B1BFF97FFF6B663FD49DF81FD17" author="DOMMERGUES J. - L. &amp; FERRETI A. &amp; MEISTER C." pageId="12" pageNumber="105" pagination="13 - 42" refId="ref19003" refString="DOMMERGUES J. - L., FERRETI A. &amp; MEISTER C. 1994. - Les faunes du Sinemurien de l'Apennin Central (Marches et Toscane, Italie). Bolletino della Societa Paleontologica Italiana 33 (1): 13 - 42." type="journal article" year="1994">
Dommergues
<emphasis id="D3CDEAF8FF97FFF6B053FD29DF46FD08" box="[813,862,725,751]" italics="true" pageId="12" pageNumber="105">et al.</emphasis>
1994
</bibRefCitation>
) et les Chaînes Bétiques (
<bibRefCitation id="85284B1BFF97FFF6B7DCFD29D948FD17" author="BRAGA J. - C. &amp; ALGARRA A. &amp; RIVAS P." box="[1186,1360,725,752]" pageId="12" pageNumber="105" pagination="85 - 100" refId="ref17978" refString="BRAGA J. - C., MARTIN- ALGARRA A. &amp; RIVAS P. 1985. - Ammonites du Lias inferieur (Sinemurien-Lotharingien) de la Sierra Harana (Cordilleres betiques, Espagne), in Premier Colloque du Centre International d'Etude du Lias (CIEL). Cahiers de l'Universite Catholique de Lyon 14: 85 - 100." type="journal article" year="1985">
Braga
<emphasis id="D3CDEAF8FF97FFF6B79DFD29D90CFD08" box="[1251,1300,725,751]" italics="true" pageId="12" pageNumber="105">et al.</emphasis>
1985
</bibRefCitation>
), la seule sous-chronozone à Stellare dans les Alpes calcaires méridionales (
<bibRefCitation id="85284B1BFF97FFF6B00DFCEAD859FCC8" author="MEISTER C. &amp; SCHIROLLI P. &amp; DOMMERGUES J. - L." box="[883,1089,789,815]" pageId="12" pageNumber="105" pagination="79 - 148" refId="ref20613" refString="MEISTER C., SCHIROLLI P. &amp; DOMMERGUES J. - L. 2017. - Early Jurassic (Sinemurian to basal Toarcian) Ammonites of the Brescian Prealps (Southern Alps, Italy). Rivista Italiana di Paleontologie e Stratigrafia 123 (1): 79 - 148." type="journal article" year="2017">
Meister
<emphasis id="D3CDEAF8FF97FFF6B0B3FCE9D81AFCC8" box="[973,1026,789,815]" italics="true" pageId="12" pageNumber="105">et al.</emphasis>
2017
</bibRefCitation>
) et la seule partie terminale de la sous-chronozone à Stellare dans les Montagnes de Bakony où, comme en
<collectingCountry id="99AE767AFF97FFF6B0ABFCAAD83FFC88" box="[981,1063,853,879]" name="Tunisia" pageId="12" pageNumber="105">Tunisie</collectingCountry>
, lespèce accompagne
<taxonomicName id="26B94D69FF97FFF6B660FCAAD995FC88" authorityName="Hyatt" authorityYear="1867" box="[1310,1421,853,879]" class="Cephalopoda" family="Arietitidae" genus="Asteroceras" kingdom="Animalia" order="Psiloceratida" pageId="12" pageNumber="105" phylum="Mollusca" rank="genus">
<emphasis id="D3CDEAF8FF97FFF6B660FCAAD995FC88" box="[1310,1421,853,879]" italics="true" pageId="12" pageNumber="105">Asteroceras</emphasis>
</taxonomicName>
gr.
<taxonomicName id="26B94D69FF97FFF6B050FC8AD8B9FC68" authority="(Geczy &amp; Meister 2007)" baseAuthorityName="Geczy &amp; Meister" baseAuthorityYear="2007" box="[814,1185,885,911]" class="Cephalopoda" family="Arietitidae" genus="Arietites" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="12" pageNumber="105" phylum="Mollusca" rank="species" species="saltriensis">
<emphasis id="D3CDEAF8FF97FFF6B050FC8ADF88FC68" box="[814,912,885,911]" italics="true" pageId="12" pageNumber="105">saltriensis</emphasis>
(
<bibRefCitation id="85284B1BFF97FFF6B0E1FC8AD88EFC68" author="GECZY B. &amp; MEISTER C." box="[927,1174,885,911]" pageId="12" pageNumber="105" pagination="137 - 305" refId="ref19957" refString="GECZY B. &amp; MEISTER C. 2007. - Les ammonites du Sinemurien et du Pliensbachien inferieur de la Montagne du Bakony (Hongrie). Revue de Paleobiologie 26 (1): 137 - 305." type="journal article" year="2007">Géczy &amp; Meister 2007</bibRefCitation>
)
</taxonomicName>
.
</paragraph>
<paragraph id="E10636EAFF97FFF6B03DFC6AD80DFB49" blockId="12.[811,1463,374,1293]" pageId="12" pageNumber="105">
Sur la marge maghrébine de la Téthys, le groupe est bien représenté dans le Rif (
<bibRefCitation id="85284B1BFF97FFF6B762FC4AD8DCFC28" author="MOUTERDE R." box="[1052,1220,948,975]" pageId="12" pageNumber="105" pagination="227 - 243" refId="ref20800" refString="MOUTERDE R. 1965. - Sur quelques ammonites du Lias du Rif. Remarques paleontologiques. Notes et Memoires du Service geologique du Maroc 184: 227 - 243." type="journal article" year="1965">Mouterde 1965</bibRefCitation>
) et dans le Haut-Atlas marocain (de Midelt, de Beni Melal et de Rich) (
<bibRefCitation id="85284B1BFF97FFF6B633FC2BDFBCFBE9" author="EL HARIRI K. &amp; DOMMERGUES J. - L. &amp; MEISTER C. &amp; SOUHEL A. &amp; CHAFIKI D." pageId="12" pageNumber="105" pagination="537 - 576" refId="ref19476" refString="EL HARIRI K., DOMMERGUES J. - L., MEISTER C., SOUHEL A. &amp; CHAFIKI D. 1996. - Les ammonites du Lias inferieur et moyen du Haut-Atlas central de Beni Mellal (Maroc): taxinomie et biostratigraphie a haute resolution. Geobios 29: 537 - 576. https: // doi. org / 10.1016 / S 0016 - 6995 (96) 80025 - 8" type="journal article" year="1996">
El Hariri
<emphasis id="D3CDEAF8FF97FFF6B050FC0ADF7CFBE9" box="[814,868,1012,1038]" italics="true" pageId="12" pageNumber="105">et al.</emphasis>
1996
</bibRefCitation>
,
<bibRefCitation id="85284B1BFF97FFF6B0CAFC0ADFF5FBE8" author="EL HARIRI K. &amp; DOMMERGUES J. - L. &amp; MEISTER C. &amp; CHAFIKI D." box="[948,1005,1013,1039]" pageId="12" pageNumber="105" pagination="217 - 260" refId="ref19420" refString="EL HARIRI K., DOMMERGUES J. - L., MEISTER C. &amp; CHAFIKI D. 2010. - Nouvelles donnees sur les ammonites du Sinemurien et du Pliensbachien basal du Haut-Atlas central (Maroc). Taxonomie et implication stratigraphiques et paleobiogeographiques. Revue de Paleobiologie 29: 217 - 260." type="journal article" year="2010">2010</bibRefCitation>
;
<bibRefCitation id="85284B1BFF97FFF6B083FC0BD8C0FBE8" author="LACHKAR N. &amp; DOMMERGUES J. - L. &amp; MEISTER C. &amp; IZARD A. &amp; LANG J." box="[1021,1240,1012,1039]" pageId="12" pageNumber="105" pagination="587 - 619" refId="ref20422" refString="LACHKAR N., DOMMERGUES J. - L., MEISTER C., IZARD A. &amp; LANG J. 1998. - Les ammonites du Sinemurien superieur du Jebel Bou-Hamid (Haut-Atlas central, Rich, Maroc). Approches paleontologiques et biostratigraphiques. Geobios 31: 587 - 619. https: // doi. org / 10.1016 / S 0016 - 6995 (98) 80046 - 6" type="journal article" year="1998">
Lachkar
<emphasis id="D3CDEAF8FF97FFF6B71FFC0AD88FFBE9" box="[1121,1175,1012,1038]" italics="true" pageId="12" pageNumber="105">et al.</emphasis>
1998
</bibRefCitation>
;
<bibRefCitation id="85284B1BFF97FFF6B796FC0AD9BEFBE8" author="GUEX J. &amp; RAKUS M. &amp; MORARD A. &amp; TENTE M." box="[1256,1446,1012,1039]" pageId="12" pageNumber="105" pagination="1 - 99" refId="ref20073" refString="GUEX J., RAKUS M., MORARD A. &amp; QUARTIER- LA- TENTE M. 2008. - Ammonites sinemuriennes du Haut-Atlas marocain. Memoires de Geologie de Lausanne 47: 1 - 99." type="journal article" year="2008">
Guex
<emphasis id="D3CDEAF8FF97FFF6B651FC0AD97DFBE9" box="[1327,1381,1012,1038]" italics="true" pageId="12" pageNumber="105">et al.</emphasis>
2008
</bibRefCitation>
) où lextension stratigraphique de
<taxonomicName id="26B94D69FF97FFF6B7E2FBEAD91FFBC8" box="[1180,1287,1045,1071]" class="Cephalopoda" family="Arietitidae" genus="Arnioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="12" pageNumber="105" phylum="Mollusca" rank="genus">
<emphasis id="D3CDEAF8FF97FFF6B7E2FBEAD91FFBC8" box="[1180,1287,1045,1071]" italics="true" pageId="12" pageNumber="105">Arnioceras</emphasis>
</taxonomicName>
gr.
<taxonomicName id="26B94D69FF97FFF6B64AFBEAD993FBC9" authorityName="Fucini" authorityYear="1902" box="[1332,1419,1045,1070]" class="Cephalopoda" family="Arietitidae" genus="Arnioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="12" pageNumber="105" phylum="Mollusca" rank="species" species="rejectum">
<emphasis id="D3CDEAF8FF97FFF6B64AFBEAD993FBC9" box="[1332,1419,1045,1070]" italics="true" pageId="12" pageNumber="105">rejectum</emphasis>
</taxonomicName>
est plus large car lespèce précède le plus souvent les couches à
<taxonomicName id="26B94D69FF97FFF6B050FBABDF84FB89" authorityName="Hyatt" authorityYear="1867" box="[814,924,1108,1134]" class="Cephalopoda" family="Arietitidae" genus="Asteroceras" kingdom="Animalia" order="Psiloceratida" pageId="12" pageNumber="105" phylum="Mollusca" rank="genus">
<emphasis id="D3CDEAF8FF97FFF6B050FBABDF84FB89" box="[814,924,1108,1134]" italics="true" pageId="12" pageNumber="105">Asteroceras</emphasis>
</taxonomicName>
avant de sassocier à lui dans la sous-chronozone à Stellare, voire dans des niveaux élevés de la sous-chronozone (
<bibRefCitation id="85284B1BFF97FFF6B048FB6BD81DFB49" author="LACHKAR N. &amp; DOMMERGUES J. - L. &amp; MEISTER C. &amp; IZARD A. &amp; LANG J." box="[822,1029,1172,1198]" pageId="12" pageNumber="105" pagination="587 - 619" refId="ref20422" refString="LACHKAR N., DOMMERGUES J. - L., MEISTER C., IZARD A. &amp; LANG J. 1998. - Les ammonites du Sinemurien superieur du Jebel Bou-Hamid (Haut-Atlas central, Rich, Maroc). Approches paleontologiques et biostratigraphiques. Geobios 31: 587 - 619. https: // doi. org / 10.1016 / S 0016 - 6995 (98) 80046 - 6" type="journal article" year="1998">
Lachkar
<emphasis id="D3CDEAF8FF97FFF6B0EDFB6ADFDFFB49" box="[915,967,1172,1198]" italics="true" pageId="12" pageNumber="105">et al.</emphasis>
1998
</bibRefCitation>
).
</paragraph>
<paragraph id="E10636EAFF97FFF6B03DFB4BDFC4FAEA" blockId="12.[811,1463,374,1293]" pageId="12" pageNumber="105">
Il est singulier quaucun exemplaire d
<taxonomicName id="26B94D69FF97FFF6B784FB4BD972FB29" box="[1274,1386,1204,1230]" class="Cephalopoda" family="Arietitidae" genus="Arnioceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="12" pageNumber="105" phylum="Mollusca" rank="genus">
<emphasis id="D3CDEAF8FF97FFF6B784FB4BD972FB29" box="[1274,1386,1204,1230]" italics="true" pageId="12" pageNumber="105">Arnioceras</emphasis>
</taxonomicName>
de ce groupe nait été à ce jour signalé dans le Sinémurien supérieur de
<collectingCountry id="99AE767AFF97FFF6B0F8FB0CDFC0FAEA" box="[902,984,1267,1293]" name="Tunisia" pageId="12" pageNumber="105">Tunisie</collectingCountry>
.
</paragraph>
</subSubSection>
</treatment>
</document>