Haas, Georg
Pachyrhachis problematicus Haas, snakelike Reptile from the Lower Cenomanian: ventral view of the skull - Paris Muséum national d'Histoire naturelle Juin 1980 - pp. 87-104
CRETACEO
REPTILIA
Pachyrhachis problematicus Haas, snakelike Reptile from the Lower Cenomanian: ventral view of the skull - Paris Muséum national d'Histoire naturelle Juin 1980 - pp. 87-104
CRETACEO
REPTILIA