Dale Russell
Foot bones found in the Early Cretaceous Arundel Formation of Maryland were referred by Othniel Charles Marsh to "Allosaurus medius" in 1888. In 1911 Richard Swann Lull named these as a new species of "Dryptosaurus": "Dryptosaurus grandis". In 1920 Gilmore renamed them to a new species of "Ornithomimus". However, because "Ornithomimus grandis" already existed, he renamed the species "Ornithomimus affinis". In 1972 Dale Russell renamed them as a second species of "Archaeornithomimus": "Archaeornithomimus affinis". However, in 1990 Smith and Galton concluded that the remains were not ornithomimosaurian and came from some other small theropod.