Dinosauria›Saurischia
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Bicharracosaurus Bicharracosaurus dionidei Reutter et al. 2026
/baɪtʃˌæɹɐkəsˈɔːɹəs/
estimated
Late Jurassic (Kimmeridgian) · 161.5–149.2 Mya
Key Statistics
Diet
herbivore
Locomotion
quadrupedal
inferred from clade
Habitat
ground-dwelling
Social
herding
Where It Was Found
Country
Argentina
Region
Chubut
Formation
Cañadón Calcáreo
Dig sites
2
distinct collections
Overview
Bicharracosaurus dionidei is a sauropodomorph dinosaur known from the Late Jurassic, roughly 161.5–149.2 million years ago. It was a herbivore. It is recorded as ground-dwelling and herding. Fossils have been recovered from Chubut, Argentina. It was named by Reutter et al. 2026. The species is represented by 2 recorded occurrences in the Paleobiology Database.
Fossil Record Completeness
How much of this profile is grounded in the fossil record
~8%
confidence from occurrence count
Based on 2 recorded occurrences in the Paleobiology Database.
Geologic Time
Where Bicharracosaurus dionidei sits in deep time
Bicharracosaurus
252 Mya201 Mya145 Mya66 Mya
Relationships
Part of a wider fossil web
These species share Bicharracosaurus dionidei'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.