The genus Ptychoceras D'ORBIGNY in the Aptian - Albian of Patagonia and Antarctica

Aptian - Albian Ptychoceratidae of southern Patagonia and James Ross Island, Antarctica are described. They are represented by Ptychoceras adpressum (J. SOWERBY, 1814), P. forbesianum STOLICZKA, 1865 and P. hamaimense PERVINQUIÈRE 1907. P. hamaimense occurs in the Peltocrioceras deeckei Assemblage Z...

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Bibliographic Details
Main Author: Medina, Francisco Alberto
Language:unknown
Published: 2008
Subjects:
Albian
Ammonoidea
Antarctica
Aptian
Patagonia
Ptychoceratidae
Argentina
Ross Island
Antarc*
James Ross Island
Online Access:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00777749_v249_n1_p9_Riccardi
https://hdl.handle.net/20.500.12110/paper_00777749_v249_n1_p9_Riccardi
Description
Summary:Aptian - Albian Ptychoceratidae of southern Patagonia and James Ross Island, Antarctica are described. They are represented by Ptychoceras adpressum (J. SOWERBY, 1814), P. forbesianum STOLICZKA, 1865 and P. hamaimense PERVINQUIÈRE 1907. P. hamaimense occurs in the Peltocrioceras deeckei Assemblage Zone (Upper Aptian) of Patagonia and the Pictetia Assemblage Zone (Lower Albian) of Antarctica. P. adpressum has been recorded from the Upper Albian Puzosia vegaensis Assemblage Zone of Patagonia and Tetragonites Assemblage Zone of Antarctica. P. forbesianum occurs in the Middle-Late Albian of Antarctica. © 2008 E. Schweizerbart'sche Verlagsbuchhandlung. Fil:Medina, F.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.

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