There are 4 matches

Collection Authorizer Collection name Reference
49016M. Carrano Sand Arroyo/ Prairie Elk Creek (AMNH) (= Sand Creek / coll. Brown & Kaisen 1909) Maastrichtian - Cretaceous 8 - Montana Osborn (1933)
99441J. Alroy Chalk Buttes, near Powderville (= East Fork of the Little Powder River / coll. 1904) Maastrichtian - Cretaceous 8 - Montana - old id Riggs (1906)
100852J. Alroy Sieber Ranch, Hell Creek (AMNH) (= Hell Creek CaƱon / coll. Brown, Lull, & Brooks 1902) Maastrichtian - Cretaceous 8 - Montana - old id Brasley (1903)
142376M. Carrano Hell Creek (CM general) (coll. Utterback 1903, 1906) Maastrichtian - Cretaceous 8 - Montana - old id Holland (1905)

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