TY - RPRT TI - Conodont and fusulinid biostratigraphy and history of the Pennsylvanian to Lower Permian Keeler Basin, east-central California AU - C.H. Stevens AU - P. Stone AU - S.M. Ritter PY - 2001 UR - https://pubs.usgs.gov/publication/70023391 ID - 70023391 ER -