Skip to Main content Skip to Navigation
Journal articles

Les sclérobiontes des huîtres du Cénomanien supérieur du Mans (Sarthe, France)

Abstract : Oysters of the Marnes à Pycnodonte biauriculata Formation, Upper Cenomanian (Guerangeri biozone) were significantly sampled in building works within the town of Le Mans (Sarthe, France). They are colonized by episkeletobionts (encrusting organisms) and endoskeletobionts (boring and bioeroding organisms). First ones include bivalves, polychaetes, foraminiferans and bryozoans. Second ones are represented by about fifteen ichnotaxa, the producers of which, when they are known, belong to ten taxa. The oysters, some of which have a large fixation surface, are allochtonous or at least parautochtonous. The settlement of sclerobionts began when the oysters were alive (Entobia isp.) and continued post-mortem on isolated valves, transported in their final depositional environment (Gnathichnus pentax). The significance of the coexistence of both Entobia and Gnathichnus ichnocoenosis is discussed
Document type :
Journal articles
Complete list of metadatas

https://hal-insu.archives-ouvertes.fr/insu-01579568
Contributor : Isabelle Dubigeon <>
Submitted on : Thursday, August 31, 2017 - 1:23:47 PM
Last modification on : Thursday, January 30, 2020 - 9:22:22 AM

Identifiers

Collections

Citation

Gérard Breton. Les sclérobiontes des huîtres du Cénomanien supérieur du Mans (Sarthe, France). Annales de Paléontologie, Elsevier Masson, 2017, 103 (3), pp.173-183. ⟨10.1016/j.annpal.2017.07.001⟩. ⟨insu-01579568⟩

Share

Metrics

Record views

150