Amonitas del Jurasico Superior y del Cretacico Inferior del extremo oriental del Estado de Durango, Mexico.

Bibliographic Details
Main Author:	Peña Muñoz, Magdalena Josefina
Format:	Book
Language:	Spanish
Published:	Mexico, [publisher not identified] ; 1964.
Series:	Paleontología mexicana ; no. 20.
Subjects:	Ammonoidea. Paleontology > Jurassic. Paleontology > Cretaceous. Paleontology > Mexico > Durango (State)

Description
Physical Description:	33 pages : maps, 10 plates. ; 23 cm.
Bibliography:	Bibliography: pages 32-33.