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A mawsoniid coelacanth (Sarcopterygii: Actinistia) from the Rhaetian (Upper Triassic) of the Peygros quarry, Le Thoronet (Var, southeastern France)

Published online by Cambridge University Press:  02 August 2017

UTHUMPORN DEESRI ,
LIONEL CAVIN ,
ROMAIN AMIOT ,
NATHALIE BARDET ,
ERIC BUFFETAUT ,
GILLES CUNY ,
STEPHEN GINER ,
JEREMY E. MARTIN  and
GUILLAUME SUAN
UTHUMPORN DEESRI
Affiliation:
Department of Biology, Faculty of Science, Mahasarakham University, Khamriang, Kantarawichai District, Maha Sarakham, 44150, Thailand Palaeontological Research and Education Centre, Mahasarakham University, Khamriang, Kantarawichai District, Maha Sarakham, 44150, Thailand
LIONEL CAVIN*
Affiliation:
Département de Géologie et Paléontologie, Muséum d'Histoire Naturelle, CP6434, 1211 Genève 6, Switzerland
ROMAIN AMIOT
Affiliation:
Laboratoire de Géologie de Lyon: Terre, Planètes, et Environnement, Université Claude Bernard Lyon 1, ENS de Lyon, CNRS, UMR 5276 LGL-TPE, F-69622, Villeurbanne, France
NATHALIE BARDET
Affiliation:
CR2P - UMR 7207 CNRS-MNHN-UPMC, Muséum national d'Histoire naturelle, CP38, 57 rue Cuvier, 75005 Paris, France
ERIC BUFFETAUT
Affiliation:
CNRS (UMR 8538), Laboratoire de Géologie de l'Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris Cedex 05, France
GILLES CUNY
Affiliation:
Laboratoire de Géologie de Lyon: Terre, Planètes, et Environnement, Université Claude Bernard Lyon 1, ENS de Lyon, CNRS, UMR 5276 LGL-TPE, F-69622, Villeurbanne, France
STEPHEN GINER
Affiliation:
Service du Patrimoine et de l'Archéologie, Direction de la Culture, Chêteau de la Ripelle, 83200 Le Revest-les-Eaux, France
JEREMY E. MARTIN
Affiliation:
Laboratoire de Géologie de Lyon: Terre, Planètes, et Environnement, Université Claude Bernard Lyon 1, ENS de Lyon, CNRS, UMR 5276 LGL-TPE, F-69622, Villeurbanne, France
GUILLAUME SUAN
Affiliation:
Laboratoire de Géologie de Lyon: Terre, Planètes, et Environnement, Université Claude Bernard Lyon 1, ENS de Lyon, CNRS, UMR 5276 LGL-TPE, F-69622, Villeurbanne, France
*
†Author for correspondence. [email protected]
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Abstract

Remains of a coelacanth specimen are described from Rhaetian deposits of the Var Department, southeastern France. They comprise the lower part of a branchial apparatus associated with a left lower jaw and a basisphenoid. Osteological features of the angular and basisphenoid and the teeth ornamentation allow the inclusion of the specimen in the mawsoniid family, genus and species indeterminate. Mawsoniids are known in freshwater environments from the Triassic of North America and from the Cretaceous of Western Gondwana and Europe, as well as from Late Jurassic marine environments from Europe. The new discovery here reported represents the first coelacanth from the marine Triassic of France and improves the understanding of the palaeobiogeography of the Mawsoniidae.

Keywords

MesozoicSarcopterygiiEuropesystematicpalaeobiogeography
Type
Rapid Communication
Information
Geological Magazine , Volume 155 , Issue 1 , January 2018 , pp. 187 - 192
Copyright
Copyright © Cambridge University Press 2017 

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