Temporal range: Middle Triassic, Anisian–Ladinian
Tropidosuchus is an extinct genus of carnivorous archosauriform from the Middle Triassic period (Anisian to Ladinian stage). It is a proterochampsid which lived in what is now Argentina. It is known from the holotype PVL 4601, which consists of partial skeleton. It was found in the Chañares Formation and its type locality is Rio Chanares. It was first named by A. B. Arcucci in 1990 and the type species is Tropidosuchus romeri.
- A. B. Arcucci (1990). "Un nuevo Proterochampsidae (Reptilia―Archosauriformes) de la fauna local de los Chañares (Triasico medio), La Rioja, Argentina (A new Proterochampsid (Reptilia-Archosauriformes) from the local fauna of Los. Chañares, middle Triassic of La Rioja, Argentine)". Ameghiniana 27 (3-4): 365–378.
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