A coleoid gladius (Mollusca, Cephalopoda) from the Albian of Normandy (France): a new squid genus and species

Breton, Gérard, Strugnell, Jan, and Donovan, Desmond T. (2013) A coleoid gladius (Mollusca, Cephalopoda) from the Albian of Normandy (France): a new squid genus and species. Annales de Paleontologie, 99 (3). pp. 275-283.

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A coleoid gladius (Mollusca, Cephalopoda), well preserved in a phosphate nodule, is described from the lower Albian of Normandy (France). The lateral parts of the gladius are considered as the remains of a primary conus. This fossil is part of a gladius of modern type. It is thought to be included in an evolutionary trend leading to the Recent genera, of narrowing of the gladius associated with greater streamlining of the body. The coleoid gladii are almost unknown from the Cretaceous. This coleoid gladius from the Albian of Normandy differs from any known Mesozoic gladius, and thus is named Normanoteuthis inopinata, new genus, new species, within the family Plesioteuthidae.

[French] Un rostre de coléoïde (Mollusque, Céphalopode), bien préservé dans un nodule phosphaté de l’Albien inférieur de Normandie (France), est décrit. Les parties latérales du rostre sont considérées comme les restes d’un cône primaire. Ce fossile est une partie d’un rostre de type moderne. Il est interprété comme faisant partie d’une tendance évolutive menant aux genres actuels, avec raccourcissement du rostre et plus grand fuselage du corps. Les rostres de coléoïdes sont presque inconnus au Crétacé. Ce spécimen de l’Albien de Normandie diffère de tous ceux connus au Mésozoïque, et est baptisé Normanoteuthis inopinata, nouveau genre et nouvelle espèce de la famille des Plesioteuthidae.

Item ID: 46436
Item Type: Article (Research - C1)
ISSN: 0753-3969
Keywords: squid; coleoid; gladius; new taxon; Albian; Paris basin; France
Date Deposited: 06 Dec 2016 22:36
FoR Codes: 04 EARTH SCIENCES > 0403 Geology > 040308 Palaeontology (incl Palynology) @ 100%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960808 Marine Flora, Fauna and Biodiversity @ 100%
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