Trigonosaurus
"triangle lizard"
- Length
- 5 m (16.4 ft)
- Period
- Late Cretaceous (70–66 Mya)
- Place
- Brazil
- Food
- Herbivore
- Clade
- Dinosauria The clade containing all dinosaurs, terrestrial archosaurs with upright limbs.
Trigonosaurus (meaning “triangle lizard” after Triangulo Mineiro, where it was found), is a genus of saltasaurid dinosaurs from the Maastrichtian Serra da Galga Formation of Brazil. The type species, Trigonosaurus pricei, was first described by Campos, Kellner, Bertini, and Santucci in 2005. It was based on two specimens, both consisting mainly of vertebrae. The two specimens were originally believed to have come from the same individual. However, one specimen was described as the holotype of Caieiria in 2022, while the holotype may have instead come from Baurutitan. Before its description, it was known as the “Peirópolis titanosaur”, after the place it was found.
What we know
- Named by Campos et al. 2005.
- Fossils found in Brazil.
What we guess
The reconstruction notes for Trigonosaurus — soft tissue, color, behavior — haven't been written up yet. Only the recorded basics above are filled in so far.