There are 4 matches

Collection Authorizer Collection name Reference
17549J. Alroy Monroe Creek (LACM 1862) Monroecreekian - Cenozoic 4 - South Dakota Macdonald (1970)
17554J. Alroy Monroe Creek (LACM 1964) Monroecreekian - Cenozoic 4 - South Dakota Macdonald (1970)
17555J. Alroy Monroe Creek (SDSM V-592) Monroecreekian - Cenozoic 4 - South Dakota Macdonald (1970)
17623J. Alroy Sharps (SDSM V-5347) Geringian - Cenozoic 4 - South Dakota - old id Macdonald (1970)

Do another search