1. Lower Pennsylvanian ammonoids from the Bloyd formation of Arkansas and Oklahoma Author/Creator: McCaleb, James A. Publication/Creation: Boulder, Colo. : Geological Society of America, 1968 Resource Type: Book Is Part Of: Bound with: QE1 .G4 S7 NO.95-100 ; Stratigraphy and paleoecology of the Saluda Formation (Cincinnatian) in Indiana, Ohio, and Kentucky. Access & Availability: Loading