Gabb, W. M. (1877). Notes on American Cretaceous fossils, with descriptions of some new species. Proceedings of the Academy of Natural Sciences of Philadelphia. 28: 276-324, 1 pl. ["1876", published 23 Jan 1877].
135897
Gabb, W. M.
1877
Notes on American Cretaceous fossils, with descriptions of some new species.
Proceedings of the Academy of Natural Sciences of Philadelphia
28: 276-324, 1 pl. ["1876", published 23 Jan 1877]