Sauropsida
Diapsida
Archosauria
Dinosauria
Saurischia
Theropoda
Tetanurae
Coelurosauria
Maniraptora
Paraves
Dromaeosauridae (“Raptors”)
Eudromaeosauria
Maastrichtian, Late Cretaceous
South Dakota, United States
Hell Creek Formation
Length: 5.5 m
Tied with Utahraptor for being the largest known “raptor,” this swift predator shared her home with the considerably more common (and far larger) Tyrannosaurus.
Thursday, September 22nd, 2016
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