New gastropods from the Jurassic of Orville Coast, Ellsworth Land, Antarctica

The Latady Group (southern Antarctic Peninsula) hosts the most diverse assemblage of Jurassic molluscs from this continent. A new gastropod mollusc, Silberlingiella latadyensis sp. nov. and three forms assigned to Rissoidae, Pseudomelaniidae and Bullinidae from the Middle-Late Jurassic, Bathonian-Ki...

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Bibliographic Details
Published in:Antarctic Science
Main Authors: Hikuroa, DCH, Kaim, A
Format: Article in Journal/Newspaper
Language:unknown
Published: Cambridge University Press 2007
Subjects:
Alexander Island
Antarctic
Antarctic Peninsula
Ellsworth Land
Hauberg
Hauberg Mountains
Latady
Orville
Orville Coast
Antarc*
Antarctic Science
Antarctica
Online Access:http://hdl.handle.net/2292/18217
https://doi.org/10.1017/S0954102007000168
Description
Summary:The Latady Group (southern Antarctic Peninsula) hosts the most diverse assemblage of Jurassic molluscs from this continent. A new gastropod mollusc, Silberlingiella latadyensis sp. nov. and three forms assigned to Rissoidae, Pseudomelaniidae and Bullinidae from the Middle-Late Jurassic, Bathonian-Kimmeridgian Hauberg Mountains Formation, Ellsworth Land, Antarctic Peninsula are described herein. Silberlingiella is transferred to Eustomatidae and is the first confirmed record of this family in the Southern Hemisphere, indicating a much more widespread Jurassic distribution. The Triassic and Jurassic species of Silberlingiella are compared with the coeval European genus Diatinostoma. Eustomatidae is proposed as an ancestral group for Potamididae and Batillariidae. The composition of the gastropod association described herein differs markedly from the only other Antarctic Jurassic fauna from Alexander Island.

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