Fort Clark, North Dakota, United States; Fort Union Formation, Paleocene [details]
Fort Clark, North Dakota, United States; Fort Union Formation, Paleocene [details]
"Three miles below Fort Union" [today Buford], North Dakota, United States [details]
"Three miles below Fort Union" [today Buford], North Dakota, United States [details]
"Three miles above Fort Union", North Dakota, USA; Fort Union Fm., Paleocene [details]
"Three miles above Fort Union", North Dakota, USA; Fort Union Fm., Paleocene [details]
"Three miles above Fort Union", North Dakota, USA; Fort Union Fm., Paleocene [details]
"Near Moreau River", South Dakota, USA; Lance Fm., Maastrichtian, Late Cretaceous [details]
"Near Moreau River", South Dakota, USA; Lance Fm., Maastrichtian, Late Cretaceous [details]
"Bad Lands of the Judith", Montana, USA; Judith River Fm., Campanian, Late Cretaceous [details]
Buford ("Three miles below Fort Union"), North Dakota, United States; Fort Union Formation, Paleocene [details]
Buford ("Three miles below Fort Union"), North Dakota, United States; Fort Union Formation, Paleocene [details]
Buford ("Ten miles above Fort Union"), North Dakota, United States; Fort Union Formation, Paleocene [details]
Buford ("Ten miles above Fort Union"), North Dakota, United States; Fort Union Formation, Paleocene [details]
Mouth of Sulphur Creek, on Bear River, Uinta County, Wyoming, United States; Bear River Formation, Albian, early ... [details]
Buford ("Fort Union"), North Dakota, United States; Fort Union Formation, Paleocene [details]
Buford ("Ten miles below Fort Union"), North Dakota, United States; Fort Union Formation, Paleocene [details]
Fort Clark, North Dakota, United States; Fort Union Formation, Paleocene [details]
Fort Clark, North Dakota, United States; Fort Union Formation, Paleocene [details]
Buford ("Three miles below Fort Union"), North Dakota, United States; Fort Union Formation, Paleocene [details]
Buford ("Ten miles from Fort Union"), North Dakota, United States; Fort Union Formation, Paleocene [details]
Buford ("Three miles above Fort Union"), North Dakota, United States; Fort Union Formation, Paleocene [details]
Buford ("Three miles below Fort Union"), North Dakota, United States; Fort Union Formation, Paleocene [details]
Buford ("Three miles above Fort Union"), North Dakota, United States; Fort Union Formation, Paleocene [details]
Little Bighorn River ("Little Horn river"), Montana, United States; Fort Union Formation, Paleocene [details]
Buford ("Three miles below Fort Union"), North Dakota, United States; Fort Union Formation, Paleocene [details]
"Three miles below Fort Union" [today Buford], North Dakota, United States [details]
"Yellowstone River, forty miles above the mouth", Montana, USA; Fort Union Fm., Eocene [details]
Buford ("Three miles below Fort Union"), North Dakota, United States; Fort Union Formation, Paleocene [details]
Buford ("Three miles below Fort Union"), North Dakota, United States; Fort Union Formation, Paleocene [details]