Outline: a typical theropod
Xenotarsosaurus
"strange ankle lizard"
Type species Xenotarsosaurus bonapartei
- Lived
- 101 to 90 million years ago, Late Cretaceous
- Diet
- Carnivore
- Group
- Theropods, Abelisauridae
- Found in
- Argentina
- Named by
- Martínez et al. 1986
Where its fossils were found
The evidence
Today
95 million years ago
Field notes
About Xenotarsosaurus
What it was like
Xenotarsosaurus was an abelisaur, a predator related to Carnotaurus. It is known from part of the backbone and a hind leg. Its ankle bones were fused in an unusual way, which gave it its name.
Its world
It lived in the Late Cretaceous, in what is now Argentina. It comes from the Bajo Barreal Formation, where it shared the land with the titanosaurs Epachthosaurus and Sarmientosaurus.
How it was found
Martínez and colleagues named Xenotarsosaurus in 1986. The type species is Xenotarsosaurus bonapartei.
Lived alongside
Found in the same rock formations
Close relatives
Other members of Abelisauridae
Sources: WikidataNamed in: R. D. Martínez, O. Giménez, and J. Rodríguez, G. Bochatey. 1986. Xenotarsosaurus bonapartei nov. gen. et sp. (Carnosauria, Abelisauridae), un nuevo Theropoda de la Formacion Bajo Barreal, Chubut, Argentina [Xenotarsosaurus bonapartei nov. gen. et sp. (Carnosauria, Abelisauridae), a new Theropoda from the Bajo Barreal Formation, Chubut, Argentina]. IV Congreso Argentino de Paleontologia y Bioestratigrafia 1:23-31