Herrerasaurus Ischigualastensis- The One and Only Herrerasaurus Herrerasaurus, pronounced huh-Rare-uh-Sore-us, is classified to the family of Herrerasauridae, designated as the oldest known dinosaurs. The genus species type, Ischigualastensis, was marked by Osvaldo Reig in 1963, and named after the person credited with finding the first fossilized traces of this species. Herrera was the name of […]

