Dinosauria›Ornithischia›Silesauridae
Lewisuchus Lewisuchus admixtus Romer 1972
/lˈuːɪsˌʌtʃəs/
estimated
Middle Triassic (Carnian) · 241.5–233.6 Mya
Key Statistics
Diet
herbivore
Locomotion
Unknown
Habitat
ground-dwelling
Social
herding
Where It Was Found
Country
Argentina
Region
La Rioja
Formation
Chañares
Dig sites
2
distinct collections
Overview
Lewisuchus admixtus is a dinosaur known from the Middle Triassic, roughly 241.5–233.6 million years ago. It was a herbivore. It is recorded as ground-dwelling and herding. Fossils have been recovered from La Rioja, Argentina. It was named by Romer 1972. The species is represented by 4 recorded occurrences in the Paleobiology Database.
Fossil Record Completeness
How much of this profile is grounded in the fossil record
~15%
confidence from occurrence count
Based on 4 recorded occurrences in the Paleobiology Database.
Geologic Time
Where Lewisuchus admixtus sits in deep time
Lewisuchus
252 Mya201 Mya145 Mya66 Mya
Relationships
Part of a wider fossil web
These species share Lewisuchus admixtus's place in deep time — computed from overlapping age ranges, shared clades, and inferred ecology. Predator–prey pairs additionally have to have been dug up in the same place.