'tail feather'
Early Cretaceous, 125-122 million years ago
Dinosauria, Saurischia, Theropoda, Neotheropoda, Tetanurae, Avetheropoda, Coelurosauria, Tyrannoraptora, Maniraptoriformes, Maniraptora, Oviraptorosauria, Caudipterygidae
Ji, Currie, Norell and Ji. (1998)