million years ago) in northwestern Argentina. The type species, Herrerasaurus ischigualastensis, was described by Osvaldo Reig in 1963 and is the only species...

Staurikosaurus and 1960s in relation to Herrerasaurus. A nearly complete skeleton of Herrerasaurus ischigualastensis was discovered in the Ischigualasto Formation...

Staurikosaurus is constrained by its close relationship with Herrerasaurus ischigualastensis, which is more complete and well known. Below is a cladogram...

Ischigualastia and the species Herrerasaurus ischigualastensis, Pseudochampsa ischigualastensis, Pelorocephalus ischigualastensis and Protojuniperoxylon ischigualastianus...

body. A skull attributed to the early carnivorous dinosaur Herrerasaurus ischigualastensis exhibits pit-like wounds surrounded by swollen and porous bone...

representatives of saurischian dinosaurs. 1st row (early saurischians): Herrerasaurus ischigualastensis (herrerasaur), Eodromaeus murphi (basal theropod); 2nd row...

(three are found in some other archosaurs, but only two are found in Herrerasaurus); and a perforate acetabulum, or hip socket, with a hole at the center...

(1993). "The pectoral girdle and forelimb of the basal theropod Herrerasaurus ischigualastensis". Journal of Vertebrate Paleontology. 13 (4): 425–450. doi:10...

million years older than any previously described dinosaur, such as Herrerasaurus. However, this age is being questioned in recent papers. Dinosaur affinities...

Chromogisaurus novasi, Eodromaeus murphi, Eoraptor lunensis, Herrerasaurus ischigualastensis and Sanjuansaurus gordilloi, is published by Curry Rogers et...

E. (1994-01-14). "The skull and neck of the basal theropod Herrerasaurus ischigualastensis". Journal of Vertebrate Paleontology. 13 (4): 451–476. doi:10...

respectively, plus a three outgroup species (Ornithosuchus longidens, Herrerasaurus ischigualastensis and Scleromochlus taylori). The taxa were coded for 74 characters...

first diagnosed. The type species of the early dinosaur Herrerasaurus, Herrerasaurus ischigualastensis from the north of Argentina, is described by Osvaldo...

subject and found pathologies in 21 genera from 10 families. The Herrerasaurus ischigualastensis specimen PVSJ 407 had a pit in a skull bone, with two more...

(1993). "The pectoral girdle and forelimb of the basal theropod Herrerasaurus ischigualastensis". Journal of Vertebrate Paleontology. 13 (4): 425–450. doi:10...

and Skeleton of an Early dinosaur. Science. 258: 1137-1140. [Herrerasaurus ischigualastensis] Sill, W.D. (1974). "The anatomy of Saurosuchus galilei and...

Common and specific names derive from guayabo via Spanish Herrerasaurus ischigualastensis † saurischian Cacán From the Ischigualasto Formation, where...

Museo de Ciencias Naturales, Universidad Nacional de San Juan Herrerasaurus ischigualastensis N/A USMN 4735 US National Museum Ceratosaurus nasicornis N/A...