CRUSTACEOS DECAPODOS BARREMIANOS DE LA REGION DEL TUCU-TUCU, PROVINCIA DE SANTA CRUZ

Maria B Aguirre-Urreta

Abstract


BARREMIAN DECAPOD CRUSTACEANS FROM THE Tucu Tucu REGION, SANTA CRUZ
PROVINCE. - Three macruran species, Palaeastacus terraeregina e (Etherídge), Enoploclytia
sp. and Hoploparia longimana (Sowerby ) and one anomuran Protocallianassa patagonica
n. sp. are described and illustrated from the Río Mayer Formation, Austral Basin, Patagonia.
Based on the associated ammonite fauna, the material is assigned to the Late Barremian,
Although the genera are cosmopolitan, they are not of chronostratigraphic value, the macruran
species, as well as the anomuran, are important environmental indicators. Hoploporia
longimana (Sowerby), Enoploclytia sp. and Protocallianassa patagonica n. sp. are mentioned
and described for the first time in Argentina.

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