A pelecypod fauna from the Gaptank Formation (Pennsylvanian) west Texas - Bird, Samuel O. (Samuel Oscar), 1934- (Ithaca, N.Y., Paleontological Research Institution, 1968)
Bibliography: p. 167-173.
Keywords: Bivalves, Fossil -- Texas; Paleontology -- Pennsylvanian; Paleontology -- Texas, West