INVESTIGADORES
SCANFERLA Carlos Agustin
artículos
Título:
The youngest record of the Cretaceous snake genus Dinilysia (Squamata, Serpentes)
Autor/es:
CARLOS AGUSTÍN SCANFERLA; JUAN IGNACIO CANALE
Revista:
South American Journal of Herpetology
Referencias:
Año: 2006 p. 76 - 81
ISSN:
1808-9798
Resumen:
We report the youngest record of the Cretaceous snake Dinilysia, from the Late Cretaceous (Campanian) Anacleto Formation (Campanian) of Neuquén province, Argentina. The specimen consists on twenty four articulated mid-posterior trunk vertebrae with the base of their respective ribs. The specimen is refered to Dinilysia on the basis of several morphological features, including a triangular shape of the vertebral body, straight posterior border of the neural arch, large craniocaudal extension of the neural spine, absence of parazygantral foramen, and arqual ridges. This represents the youngest record of the genus Dinilysia, thus extending its biochron up to the Campanian age.
