Two of the earliest known dinosaurs, Herrerasaurus (large) and Eoraptor (small), discovered in Argentina. Herrerasaurus is the earliest known theropod dinosaur, the ancestor of most carnivorous dinosaurs and modern birds. Eoraptor is
![Herrerasaurus Herrerasaurus was discovered in 1959 by Victorino Herrera, a shepherd that lived in the Andes near San Juan Argentina. The fossils were discovered near the city in an exposed rock formation. Herrerasaurus Herrerasaurus was discovered in 1959 by Victorino Herrera, a shepherd that lived in the Andes near San Juan Argentina. The fossils were discovered near the city in an exposed rock formation.](https://imageproxy.ifunny.co/crop:x-20,resize:640x,quality:90x75/images/c5b6f9c3b2068fb039e79ad743377481e2bc41dff75ff73608df6d190f1d585b_1.jpg)
Herrerasaurus Herrerasaurus was discovered in 1959 by Victorino Herrera, a shepherd that lived in the Andes near San Juan Argentina. The fossils were discovered near the city in an exposed rock formation.
![Herrerasaurus Alt View Stock Photo - Download Image Now - Dinosaur, Fossil, Animal Skeleton - iStock Herrerasaurus Alt View Stock Photo - Download Image Now - Dinosaur, Fossil, Animal Skeleton - iStock](https://media.istockphoto.com/id/157334222/photo/herrerasaurus-alt-view.jpg?s=612x612&w=0&k=20&c=AHUNcUZ9rULtghXGmNwj2tW_G1gy99Nz_zZW0ZJC-NQ=)
Herrerasaurus Alt View Stock Photo - Download Image Now - Dinosaur, Fossil, Animal Skeleton - iStock
Field Museum on X: "@SUEtheTrex This CCD is Herrerasaurus, sometimes mistaken for Velociraptor. Herrerasaurus lived about 230 million years ago—much earlier than Velociraptor who lived about 75 million years ago. https://t.co/unZ1gvCXMd" /
![The oldest known dinosaurs – Herrerasaurus, Staurikosaurus, Eoraptor, Pisanosaurus | DinoAnimals.com The oldest known dinosaurs – Herrerasaurus, Staurikosaurus, Eoraptor, Pisanosaurus | DinoAnimals.com](https://dinoanimals.com/wp-content/uploads/2020/07/Herrerasaurus.jpg)