Before dinosauromorphs like Asilisaurus, the evolutionary lineage would include earlier archosaurs. One such early archosaur is Marasuchus lilloensis, which lived around 240 million years ago. Marasuchus exhibits several primitive features that are on the evolutionary path towards dinosaurs.
- Kingdom: Animalia > Phylum: Chordata > Class: Reptilia > Order: Dinosauriformes
- 30 to 40 cm (12 to 16 inches)
- Found in Argentina, South America
- primarily bipedal
- carnivore