9 research outputs found
Cosmopolitan Early Jurassic Marine Gastropods from West-Central Patagonia, Argentina
Full text linkA new, relatively diverse gastropod fauna is reported from the Chubut province of west−central Patagonia. The gastro− pod association at the “El Córdoba ” fossiliferous locality (Lower Toarcian of Osta Arena Formation) consists of three new species: the eucyclid Amberleya? espinosa sp. nov. and two procerithiids Cryptaulax damboreneae sp. nov. and Cryptaulax nulloi sp. nov. Other members of the association are the ataphrid Striatoconulus sp., discohelicid Colpom− phalus? sp., and an undetermined zygopleurid. Knowledge on Early Jurassic gastropods from South America and other southern continents is reviewed to show that the taxonomic composition of the El Cordoba association strongly resem− bles other gastropod associations of this age (even those from Europe), suggesting a wide distribution of cosmopolita
The Mactracea, Tellinacea and Myacea (Bivalvia) in the marine Holocene of northeastern Buenos Aires Province (Argentina, South America): indicators of environmental change
No full textEarly Jurassic Ataphridae (Mollusca: Gastropoda) from Chubut, Argentina: Paleogeographic and Paleoecologic Implications
No full textEarly Jurassic marine gastropods from Argentina: a palaeobiogeographical analysis based on Vetigastropoda
No full textMarine Bivalves from the Argentine Coast and Continental Shelf: Species Diversity and Assessment of the Historical Knowledge *
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