NEW RECORDS OF MARINE GASTROPODS FROM THE LOWER CRETACEOUS OF WEST-CENTRAL ARGENTINA --- Preprint doi:10.5710/AMGH.14.12.2016.3053

Cecilia S. Cataldo

Abstract


Eleven new records of marine gastropods from several localities in west-central Argentina are presented, including the following new species: Proconulus kotrus, Calliotropis (Riselloidea) ligosta, Lyosoma truquicoensis, Exelissa crassicostata, Cirsocerithium agriorivensis, Cataldia? binodosa, Vanikoropsis? leviplicata and Tornatellaea neuquina. These records come from two Early Cretaceous units of the Neuquén Basin: the Mulichinco (Valanginian) and Agrio (upper Valanginian–upper Hauterivian/lowermost Barremian) formations. The families Proconulidae, Calliotropidae, Neritidae, Cryptaulacidae, ?Peudomelaniidae, Vanikoridae, Epitoniidae and Acteonidae are represented, whilst one record is as yet unassigned at the family level.

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