1. Some of Alpheus Hyatt's unfigured types from the Jurassic of California Author/Creator: Crickmay, C. H. 1899-1988. (Colin Hayter) Publication/Creation: Washington, D.C. : U.S. G.P.O., 1933 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 174-178. Access & Availability: Loading
2. Some of Alpheus Hyatt's unfigured types from the Jurassic of California Author/Creator: Crickmay, C. H. 1899-1988, (Colin Hayter), author Publication/Creation: Washington : United States Department of the Interior, United States Geological Survey, 1933 Resource Type: Book Access & Availability: Loading