A new Decapoda (Natantia, Malacostraca, Crustacea) from the Riachuelo formation (Albian), Sergipe basin
AbstractA New Decapoda (Natantia, Malacostraca, Crustacea) From the Riachuelo Formation, Albian of the Sergipe Basin A "lobster" fossil from the Riachuelo Formation, Sergipe Sub-basin, is here described and placed in the Decapoda, Infraorder Palinura, based on the flattened carapace and the well-developed abdomen. The specimen is characterized by a dorsal median keel and a keel in each margin of the carapace and abdomen. Field data and petrographic studies suggest that the environment in which the Decapoda lived was probably a place with waves and moderate currents, located behind a sand barrier or in within a lagoon. Apparently, the carbonization process was responsible for specimen preservation.
This journal is licensed under a Creative Commons — Attribution 4.0 International — CC BY 4.0, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.