1. The brachiopod Antiquatonia coloradoensis (Girty) from the upper Morrowan and Atokan (lower Middle Pennsylvanian) of the United States Author/Creator: Henry, Thomas W. Publication/Creation: Washington : U.S. G.P.O. ; Denver, CO : For sale by U.S. Geological Survey, Information Services, 1998 Resource Type: Book Access & Availability: Loading
2. The brachiopod Antiquatonia coloradoensis (Girty) from the upper Morrowan and Atokan (lower Middle Pennsylvanian) of the United States Author/Creator: Henry, Thomas W., author Publication/Creation: Washington : United States Government Printing Office., 1998 Resource Type: Book Access & Availability: Loading