RESUMO

The fossil shrimp Somalis piauiensis n. gen. n. sp. is a new fossil record of Penaeoidea from the Araripe Basin. The purpose of this study is to describe a new decapod crustacean from the Romualdo Formation of the Santana Group and compare it with other fossil Dendrobranchiata described from this basin. The new fossil is characterized by a carapace with antennal and branchiostegal spines. Long rostrum, with thirteen evident dorsal spines yielding a serrate appearance. The laminar scaphocerite is large with a weakly rounded lateral margin and is longer than the rostrum. The fossil specimen is the first occurrence of shrimp in the Piauí territory.

Assuntos

Decápodes , Fósseis , Animais , Brasil