The raptor scaled up to nightmare size — as heavy as a polar bear, with 22 cm sickle claws. A single sandstone block from Utah contains a whole pack that apparently died together in quicksand while hunting.
Length5.5 m
Height1.8 m
Weight300 kg
Top speed40 km/h
Field notes
- Its sickle claws reached 22 cm — the largest of any raptor.
- Described in 1993, the same year Jurassic Park premiered.