The lower Cretaceous Gryphæas of the Texas region
By: by Robert Thomas Hill and Thomas Wayland Vaughan.
Contributors: Vaughan, Thomas Wayland, 1870-1952, joint author.
Publisher: Govt. Print. Off.
Published: 1898
Place of publication: Washington
Language: eng
Number of pages: 139
Subjects: Gryphæa.; Paleontology -- Texas.; Paleontology -- Cretaceous.