| Título: | On some Panamerican Cretaceous crabs (Decapoda: Raninoida) |
| Autores: |
Vega,Francisco J. Nyborg,Torrey Kovalchuk,Greg Etayo,Fernando Luque,Javier Rojas-Briceño,Alexis Patarroyo,Pedro Porras-Múzquiz,Héctor Armstrong,Adam Bermúdez,Hermann Garibay,Luis |
| Fecha: | 2010-08-01 |
| Publicador: | SCIELO |
| Fuente: |
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| Tipo: | journal article |
| Tema: |
Crustacea, Raninoida Cretaceous North America South America |
| Descripción: | Decapod crustacean specimens recently collected from new and previously reported localities of USA, Mexico, and Colombia, as well as a review of species of uncertain affinity, add important information to complete the descriptions and paleobiological knowledge of some Cretaceous primitive crabs. The stratigraphic range for the genus Cenomanocarcinus is formally extended from the upper Albian to Campanian, based on occurrences from Colombia, Oklahoma and Mexico. Specimens of Cenomanocarcinus vanstraeleni from the Turonian of Mexico and Colombia include features not described previously for this species, such as variation in the shape and ornament of chelae. Necrocarcinus renfroae is here included in the genus Cenomanocarcinus, based on features of dorsal and ventral carapaces, as well as shape of pereiopods, and its occurrence is documented from the upper Albian of Colombia. Orithopsis tricarinata is reported for the first time in America from upper Albian deposits of Oregon and Colombia; the shape of the sternum confirms close affinities with the Cenomanocarcinidae and the family Orithopsidae is here included in the section Raninoida and restricted to the genus Orithopsis. |
| Idioma: | Inglés |
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