Name: Daemonosaurus chauliodus
Name Meaning: Prominent toothed demon lizard
First Described: 2011
Described by: Sues et al
Classification: Dinosauria, Eusaurischia, Theropoda
Daemonosaurus is a recently discovered basal theropod dinosaur from the Rhaetian age of the Late Triassic, between 208 to 201 million years ago. It was discovered in the Chinle Formation in Arizona. It lies outside of the Neotheropoda clade, making it somewhat less complex than contemporary theropods such as Coelophysis. It is known from a single incomplete skeleton. As such, it represents the group that extended from the early basal dinosaurs described previously on this blog, and later evolved into the more advanced theropods of later periods. It differs from both the early basals such as Herrerasaurus, and later early theropods such as Coelophysis. It wasn’t a very common predator, and it lived in a very diverse environment filled with the more complex early dinosaurs, many archosaurs, and other reptiles. Dinosaurs still weren’t the major life group of animals, but they were diversifying and showing more specialization from the early basal forms. It was probably a predator, but due to the hederotontion present it also could have used its teeth to shear off leaves.