There are 2 matches

Collection Authorizer Collection name Reference
40823D. Bottjer USNM806i, Cerros de los Monos, El Antimonio, Sonora Wordian - Permian 3 - Mexico Cooper et al. (1953)
40838D. Bottjer USNM806q, Cerros de los Monos, El Antimonio, Sonora Wordian - Permian 3 - Mexico Cooper et al. (1953)

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