Gracilisuchus (Romer 1972)
nests at the base of the Archosauria in the large reptile tree. Scleromochlus and Saltopus are sister taxa. So are these short-faced specimens (Fig. 1), MCZ 4116 and 4117 (Brinkman 1981). That short rostrum looks juvenile, but note these specimens are not smaller than the holotype (Fig.1). Romer and Parrish (year?) restored the snout tip with a Gracilisuchus-like big round nasal and a very short, transverse premaxilla. As an option, I just followed existing contours and added a premaxilla similar in length to the holotype.
Could this be a juvenile of a much larger adult?
Brinkman D 1981. The origin of the crocodiloid tarsi and the interrelationships of thecodontian archosaurs. Breviora 464: 1–23.
Romer AS 1972. The Chañares (Argentina) Triassic reptile fauna. An early ornithosuchid pseudosuchian, Gracilisuchus stipanicicorum, gen. et sp. nov. Breviora 389:1-24.