TY - RPRT TI - A record of the inarticulate brachiopod Glottidia? from the ancestral Gulf of California, Miocene to Pliocene Imperial Formation, southern California AU - C.L. Powell PY - 1997 DO - 10.3133/ofr97538 UR - https://pubs.usgs.gov/publication/ofr97538 ID - ofr97538 ER -