Late Triassic
Coelophysidae
The first wave of predatory dinosaurs — small, slender and hollow-boned, built for speed in a world still recovering from the greatest extinction of all time. Every later theropod, from Velociraptor to T. rex, descends from ancestors much like these.
Among the earliest theropodsHollow, bird-like bonesLight and fastPack living
Coelophysidae