Systematic Revision and Palaeobiology of Emplastron edwardsi (Van Straelen, 1928) gen. et comb. nov. (Crustacea, Decapoda, Astacidae) Entombed within Travertine, from Sézanne, France - MNHN - Muséum national d'Histoire naturelle Access content directly
Journal Articles Paleontological research Year : 2021

Systematic Revision and Palaeobiology of Emplastron edwardsi (Van Straelen, 1928) gen. et comb. nov. (Crustacea, Decapoda, Astacidae) Entombed within Travertine, from Sézanne, France

Abstract

Crayfish are rare in the fossil record and therefore it is important to investigate each occurrence in detail. The only known fossil crayfish from France, Astacus edwardsi Van Straelen, 1928, is known from a replica made by pouring plaster of Paris inside the holotype (consequently destroyed), an external mould extracted from a travertine cavity from the Thanetian of Sézanne. An evaluation of the taxonomic name, A. edwardsi, is provided; A. edwardsi is considered valid in accordance with ICZN rulings. It possesses atypical features for all other astacid genera, thus Emplastron gen. nov. is erected. Emplastron edwardsi gen. et comb. nov. inhabited a warm climate with calm waters, abundant food sources, and an ample supply of calcium carbonate: so much so that it is surprising that it is the only recovered specimen. Despite apparent North American faunal and floral affinities in the vicinity, E. edwardsi is more closely related to European crayfishes than it is to American ones.
Fichier principal
Vignette du fichier
Emplastron_preprint.pdf (768.43 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

mnhn-03608680 , version 1 (15-03-2022)

Identifiers

Cite

Robert O'Flynn, Denis Audo, Tadashi Kawai. Systematic Revision and Palaeobiology of Emplastron edwardsi (Van Straelen, 1928) gen. et comb. nov. (Crustacea, Decapoda, Astacidae) Entombed within Travertine, from Sézanne, France. Paleontological research, 2021, 25 (4), ⟨10.2517/2021pr007⟩. ⟨mnhn-03608680⟩

Collections

MNHN
5 View
35 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More