UNA FAUNA DE BIVALVOS EN LA FORMACION SANTA GERTRUDIS (ORDOVICICO) DE LA PROVINCIA DE SALTA (ARGENTINA)

Teresa M. Sanchez

Abstract


"A new Ordovician bivalve fauna is described: Cadomia typa De Tromelin, Cocloconcha cf. C. oblonga Foerste, Cyrtodontula sp. and Malletiidae and Edmondiacea were recognized. The evídences of thís fauna and the associated Genus Brongniartella (Trilobita ) suggest a maximal Llandeilian age for the upper mid-portion of the Santa Gertrudis Formation.

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