| Named By: | M. B. Lacerda, C. L. Schultz & C. BertoniinMachado in 2015 |
| Time Period: | Middle Triassic, 235 Ma |
| Location: | Brazil - Santa Maria Formation |
| Size: | Uncertain |
| Diet: | Carnivore |
| Fossil(s): | Partial hip |
| Classification: | | Chordata | Reptilia | Archosauria | Pseudosuchia | Suchia | Paracrocodylomorpha | Loricata | |
Dagasuchus is an extinct genus of pseudosuchian archosaur from the Middle Triassic of Rio Grande do Sul, Brazil, represented by the type species Dagasuchus santacruzensis. D. santacruzensis was named in 2015 on the basis of a partial hip (one illium and a pair of ischia) found in an exposure of the Santa Maria Formation near the city of Santa Cruz do Sul. Dagausuchus is an early member of a large evolutionary group called Loricata, which originated in the Triassic and includes modern crocodylians and their ancestors. Features of its hip closely resemble those of other early loricatans such as Stagonosuchus and Saurosuchus. Dagasuchus is notable for being the first loricatan found in the Santacruzodon assemblage zone of the Santa Maria Formation; previously loricatans were only known from the older Dinodontosaurus assemblage zone and the younger Hyperodapedon assemblage zone within the Santa Maria Formation, meaning that Dagasuchus fills in a gap in the fossil record of the group.