Fauna from Upper Cretaceous Argentina, pt. 2
My illustrations for the thesis of a recently graduated palaeontologist. It's been an honor to work on this project and contribute in some way on the field of palaeontology. These are animals from the Upper Cretaceous of West-Central Argentina. The pseudosuchians Notosuchus and Comahuesuchus, the theropod dinosaurs Achillesaurus and Velocisaurus, and the early snake Dinilysia. The rest of the animals are not based on fossil skeletons found by the team but are the likely authors of the fossilized burrows. For the spiral burrows, a small mammal or a big lizard. For the insect burrows, ants or termites. For the more simple burrows, a crayfish.
Small, early mammal that could have made the spiral burrows found.
Comahuesuchus brachybuccalis, a small, terrestrial relative of modern crocodiles. Young individual.
Velocisaurus unicus, a small, predatory theropod dinosaur.
Dinilysia patagonica, one of the earliest snakes. Of big size, killed its prey by constriction.
Medium sized lizard that could have made the spiral burrows foud.