Descrição de um novo Decapoda (Natantia, Malacostraca, Crustacea) da formação Riachuelo, Albiano da bacia de Sergipe

Autor:	Pedro De Cesero, Caio Vinícius Gabrig Turbay, Márcia Aparecida Fernandes dos Reis
Rok vydání:	2005
Předmět:	Dorsum biology Decapoda Geography Planning and Development Geology Development biology.organism_classification Crustacean Natantia Infraorder Palinura Paleontology Malacostraca Economic Geology Carapace Keel (bird anatomy) General Environmental Science
Zdroj:	Anuário do Instituto de Geociências. 28:80-91
ISSN:	1982-3908 0101-9759
DOI:	10.11137/2005_1_80-91
Popis:	A 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.
Databáze:	OpenAIRE
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