Dinosauria › Reptilia › Theropoda › Alvarezsauridae
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Trierarchuncus
Trierarchuncus prairiensis Fowler et al. 2020
Late Cretaceous (Maastrichtian) · 72.2–66 Mya
Key Statistics
Diet
carnivore
Locomotion
bipedal
inferred from clade
Overview
Trierarchuncus prairiensis is a theropod dinosaur known from the Late Cretaceous, roughly 72.2–66.0 million years ago. It was a carnivore. It was named by Fowler et al. 2020. The species is represented by 6 recorded occurrences in the Paleobiology Database.
Fossil Record Completeness
How much of this profile is grounded in the fossil record
~21%
fragmentary record
Confirmed
Inferred
Based on 6 recorded occurrences in the Paleobiology Database.
Geologic Time
Where Trierarchuncus sits in deep time
Trierarchuncus
252 Mya201 Mya145 Mya66 Mya
Relationships
Part of a wider fossil web
These species share Trierarchuncus's place in deep time — computed from overlapping age ranges, shared clades, and inferred ecology.