Cragin, F. W. (1893). A contribution to the invertebrate paleontology of the Texas Cretaceous. In: Dumble, E.T. (Ed.) Fourth Annual Report of the Geological Survey of Texas. Paleontology and Natural History, 9. Geological Survey of Texas, Austin, pp. 139-295, pls 24-46. [published June 1893].
198504
Cragin, F. W.
1893
A contribution to the invertebrate paleontology of the Texas Cretaceous
Geological Survey of Texas, Annual Report
In: Dumble, E.T. (Ed.) Fourth Annual Report of the Geological Survey of Texas. Paleontology and Natural History, 9. Geological Survey of Texas, Austin, pp. 139-295, pls 24-46. [published June 1893]