Is a dinosaur a reptile?

Dinosaur Evolution & Classification On this page, we answer the question are dinosaurs reptiles. In order to do so, we’ll need to investigate what makes a reptile a reptile, and we’ll also need to take a look at how dinosaurs evolved. read more

Yes, because they are members of the phylogenetic clade Sauropsida ("lizard faces"). Note however that the term "reptile" is a paraphyletic (unnatural) assemblage of animals because it excludes the birds, which are also dinosaurs (since they descended from dinosaurs) and therefore reptiles. read more

Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago, although the exact origin and timing of the evolution of dinosaurs is the subject of active research. read more