Trierarchuncus
Field photograph to come
Trierarchuncus
DV-1123
- Lived
- 72 to 66 million years ago, Late Cretaceous
- Diet
- Carnivore
- Group
- Theropods, Alvarezsauridae
- Found in
- United States
- Named by
- Fowler et al. 2020
Field notes
About Trierarchuncus
Trierarchuncus was a meat-eating theropod that lived in the Late Cretaceous, 72 to 66 million years ago. It belongs to the family Alvarezsauridae.
The Paleobiology Database lists 6 finds of Trierarchuncus, from Montana. Its fossils come from the Hell Creek Formation. It was named by Fowler et al. in 2020.
The evidence
Where its fossils were found
Today
70 million years ago
Lived alongside
Found in the same rock formations.
Close relatives
Other members of Alvarezsauridae.
Sources: Paleobiology Database, WikidataNamed in: D. W. Fowler, J. P. Wilson, and E. A. Freedman Fowler, C. R. Noto, D. Anduza, J. R. Horner. 2020. Trierarchuncus prairiensis gen. et sp. nov., the last alvarezsaurid: Hell Creek Formation (uppermost Maastrichtian), Montana. Cretaceous Research 116:104560