'slow lizard'
Late Cretaceous, 97-88 million years ago
Dinosauria, Saurischia, Theropoda, Neotheropoda, Tetanurae, Avetheropoda, Coelurosauria, Tyrannoraptora, Maniraptoriformes, Maniraptora, Therizinosauroidea, Therizinosauridae
Perle (1979)