Dinosaur outgroup taxon: Turfanosuchus

It was the Middle Triassic when
a sister to Turfanosuchus evolved into the basalmost dinosaur, Herrerasaurus (Figs. 1, 2)

Figure 1. Turfanosuchus compared to Herrerasaurus, the basalmost dinosaur.

Figure 1. Turfanosuchus compared to Herrerasaurus, the basalmost dinosaur. Lower image to scale.

Figure 2. Skull of Turfanosuchus compared to Herrerasaurus, the basalmost dinosaur.

Figure 2. Skull of Turfanosuchus compared to Herrerasaurus, the basalmost dinosaur.

Quick one today.
I’ll let the pictures tell the story…

References
Novas FE 1994. New information on the systematics and postcranial skeleton of Herrerasaurus ischigualastensis (Theropoda: Herrerasauridae) from the Ischigualasto
Reig OA 1963. La presencia de dinosaurios saurisquios en los “Estratos de Ischigualasto” (Mesotriásico Superior) de las provincias de San Juan y La Rioja (República Argentina). Ameghiniana 3: 3-20.
Sereno PC and Novas FE 1993. The skull and neck of the basal theropod Herrerasaurusischigualastensis. Journal of Vertebrate Paleontology 13: 451-476. doi:10.1080/02724634.1994.10011525.
Young CC 1973. [On a new pseudosuchian from Turfan, Sinking (Xinjiang).] Memoirs of the Institute of Vertebrate Paleontology and Paleoanthropology of the Academia Sinica, Series B 10:15-37.

wiki/Herrerasaurus
wiki/Turfanosuchus

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