Copyright 1966 by Michigan Academy of Science, Arts and Letters. This material is copyrighted, and any further reproduction or distribution is prohibited without the permission of the copyright owner.
Discussion of the fossil echinoids present in the Glen Rose Limestone formation in Central Texas.
Source
Whitney, Marion; Kellum, Lewis. "Echinoids of the Glen Rose Limestone of Texas". Papers of the Michigan Academy of Science, Arts and Letters Vol. LI, 1966 (1965 Meeting). 241-263.