Dromicosuchus grallator (Sues et al. 2003) Late Carnian, Late Triassic, ~1.2 m in length, was a small crocodylomorph phylogenetically succeeding Yonghesuchus and preceding Protosuchus.
Distinct from Hesperosuchus, the skull of Dromicosuchus has twin parietal crests and a V-shaped transverse occipital crest. A large embayment between the premaxilla and maxilla nested the large dentary fang when the jaws were closed. The naris was smaller. The antorbital fenestra was reduced to a slit. The mandibular fenestra was smaller. The squamosal was raised to the horizontal. The skull roof was wider.
The scapula was smaller. The femur was longer. The metatarsals were longer.
Like Terrestrisuchus, Dromicosuchus was a likely biped. |