There are 2 matches

Collection Authorizer Collection name Reference
20019J. Alroy Delmont (= Hieb Sand Pit) Blancan - Cenozoic 6 - South Dakota Martin and Harksen (1974)
20021J. Alroy Yankton (= SDSM V-721
DUPLICATE REF 1712 or 1713 or 1714)
Blancan - Cenozoic 6 - South Dakota
Green (1977)

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