Eoraptor lunensis
"Dawn Plunderer"

Eoraptor means "dawn thief." It was found by Ricardo Martinez in 1991; in the Ischigualasto Badlands of Argentina . This area was a river valley during the late Triassic period but is a desert. Eoraptor was found near the same site from which Herrerasaurus, another very early theropod, was found. Eoraptor was named by Paul Sereno in 1993.