Carnotaurus
The animal lived in an environment of estuaries, tidal flats or coastal plains. The climate would have been seasonal with both dry and humid periods. The most common vertebrates collected include  lungfish, turtles, crocodiles, plesiosaurs, dinosaurs, lizards, snakes and mammals. Turtles are represented by at least five taxa. In 2011, the discovery of a new enantiornithine bird from the La Colonia Formation was announced.