Dinosaur: Trierarchuncus prairiensis
Cretaceous: 72.1–66 Ma
Period
Epoch: Late Cretaceous
Stage: Late Maastrichtian
Years: 72.1–66 Ma
Details
Status: valid
Author: Fowler et al.
Year: 2020
Distribution
Area: North America
Country: USA
Region: Montana
Formation: Hell Creek
Locations
Sources
Material: Manual ungual, referred very fragmentary remains.
References: Denver W. Fowler, John P. Wilson, Elizabeth A. Freedman Fowler, Christopher R. Noto, Daniel Anduza, John R. Horner (2020). Trierarchuncus prairiensis gen. et sp. nov., the last alvarezsaurid: Hell Creek Formation (uppermost Maastrichtian), Montana.
