1. Facies analysis, genetic sequences, and paleogeography of the lower part of the Minturn Formation (Middle Pennsylvanian), southeastern Eagle Basin, Colorado Author/Creator: Karachewski, John A. Publication/Creation: Washington : U.S. G.P.O. ; Denver, CO., 1992 Resource Type: Book Access & Availability: Loading
2. The fossil flora of the Drywood Formation southwestern Missouri Author/Creator: Basson, Philip W. Publication/Creation: Columbia : University of Missouri Press, [1969] Resource Type: Book Access & Availability: Loading