"Tertiary strata, probably late Eocene; Bijou Basin, forty miles east of Denver, Colorado", USA; Eocene (?) [locality ... [details]
"Salt Wells Group; Upper Kanab, Utah, and Hilliard Station, Wyoming", USA; Late Cretaceous [details]
Millis, S of Evanston ("Bear River Valley, near Mellis Station"), Wyoming, United States; Bear River Formation, ... [details]
Millis, S of Evanston ("Bear River Valley, near Mellis Station"), Wyoming, United States; Bear River Formation, ... [details]
"south base of Pine Valley Mountains, Utah", United States [details]
"eight miles below Green River Station, Wyoming", United States [details]
Almy coal-mines, near Evanston, Wyoming, United States; Evanston Formation, Campanian to Selandian, late Cretaceous ... [details]
West base of Mary's Nipple ("Mu-si-ni-a Plateau"), 1,000 feet below the summit, Sanpete County, Utah, United ... [details]
Black Buttes, Sweetwater County, Wyoming, United States; Lance Formation, Maastrichtian, late Cretaceous [details]
Crow Creek, Weld County, Colorado, United States; Laramie Formation, Maastrichtian, late Cretaceous [details]
Black Buttes, Sweetwater County, Wyoming, United States; Lance Formation, Maastrichtian, late Cretaceous [details]
Two miles west of Point of Rocks, Wyoming, United States; Laramie Formation, Maastrichtian, late Cretaceous [details]
Locality L3335a, Upper Kanab Creek, Kane County, Utah, United States; Mesaverde Group, late Santonian to early ... [details]
"Bitter Creek Group; Almy coal mines, near Evanston, Wyoming", USA; Evanston Fm., Late Cretaceous [details]
Locality L3335a, Upper Kanab Creek, Kane County, Utah, United States; Mesaverde Group, late Santonian to early ... [details]
Millis, S of Evanston ("Bear River Valley, near Mellis Station"), Wyoming, United States; Bear River Formation, ... [details]
"Alkali Stage Station, twenty-two miles northward from Green River Station, Wyoming", United States [details]
Black Buttes, Sweetwater County, Wyoming, United States; Lance Formation, Maastrichtian, late Cretaceous [details]
"Bitter Creek Group; Black Buttes, Wyoming", USA; Lance Fm., Maastrichtian, Late Cretaceous [details]
"Sevier Cliffs, twelve miles above Panguitch, Utah [p. 100]; Point of Rocks Group; Upper Kanab, Utah [p. 116]", USA; ... [details]
"Bitter Creek Group; Black Buttes, Wyoming", USA; Lance Fm., Maastrichtian, Late Cretaceous [details]
"Bitter Creek Group; Black Buttes, Wyoming", USA; Lance Fm., Maastrichtian, Late Cretaceous [details]
"Upper Green River Group; Henry's Fork and Alkali Stage Station, Wyoming; also in Lower Green River Group; west ... [details]
"At Flaming Gorge of Green River, near the northern boundary line of Utah", Wyoming, USA; Jurassic [details]
Locality L3335, Sevier Cliffs, 12 miles above Panguitch, and Upper Kanab, Garfield County, and Locality L3335a, ... [details]
Black Buttes, Sweetwater County, Wyoming, United States; Lance Formation, Maastrichtian, late Cretaceous [details]