The ammonoid fauna of the Prionocyclus germari Zone (upper Turonian, upper Cretaceous) from Rochefort-en-Valdaine (Drôme, France) | Zendy

Cyril Baudouin | Zendy; Gérard Delanoy | Zendy; Christina Ifrim | Zendy; Josep Anton MorenoBedmar | Zendy

Open Access

The ammonoid fauna of the Prionocyclus germari Zone (upper Turonian, upper Cretaceous) from Rochefort-en-Valdaine (Drôme, France)

Author(s) -

Cyril Baudouin,

Gérard Delanoy,

Christina Ifrim,

Josep Anton MorenoBedmar

Publication year - 2018

Publication title -

carnets de géologie (notebooks on geology)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.263

H-Index - 15

eISSN - 1765-2553

pISSN - 1634-0744

DOI - 10.4267/2042/69401

Subject(s) - cretaceous , fauna , paleontology , geology , geography , ecology , biology

The late Turonian ammonoid fauna of Rochefort-en-Valdaine (Drome, France) is herein described in detail and the intraspecific variability of Vocontiiceras vocontiense Diebold et al., 2018, is studied. The ammonoid assemblage (9 taxa identified) was deposited within the Prionocyclus germari Zone, which was defined in Germany, and is now also documented in southeastern France. Moreover, the co-occurrence of the heteromorph ammonoids Hyphantoceras (Hyphantoceras) flexuosum (Schluter) and Hyphantoceras (Hyphantoceras) ernsti Wiese indicates the lower part of the Prionocyclus germari Zone.

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