New and poorly known Perisphinctoidea (Ammonitina) from the Upper Tithonian of Le Chouet (Drôme, SE France)[i][/i]
Journal Title: Volumina Jurassica - Year 2014, Vol 12, Issue 1
Abstract
The aim of this paper is to document the ammonite fauna of the upper part of the Late Tithonian collected at the key section of Le Chouet (Drôme, SE France). Emphasis is laid on new and poorly known Ataxioceratidae, Himalayitidae and Neocomitidae from the upper part of the Tithonian. Among the Ataxioceratidae, a new account on the taxonomy and relationship between [i]Paraulacosphinctes[/i] Schindewolf and Moravisphinctes Tavera is presented. Regarding the Himalayitidae, the range and content of [i]Micracanthoceras [/i]Spath is discussed and two new genera are introduced: [i]Ardesciella [/i]gen. nov., for a group of Mediterranean ammonites that is homoeomorphic with the Andean genus [i]Corongoceras [/i]Spath, and [i]Pratumidiscus [/i]gen. nov. for a specimen that shows morphological similarities with the Boreal genera Riasanites Spath and [i]Riasanella [/i]Mitta. Finally, the occurrence of Neocomitidae in the uppermost Tithonian is documented by the presence of the reputedly Berriasian genera [i]Busnardoiceras [/i]Tavera and [i]Pseudargentiniceras [/i]Spath.
Authors and Affiliations
Luc G. BULOT, Camille FRAU, William A. P. WIMBLEDON
Keywords
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- EP ID EP67972
- DOI 10.5604/17313708 .1125191
- Views 54
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