Later, it was discovered that the name "Saurophagus" was preoccupied: in 1831, it had already been given by William Swainson to a tyrant-flycatcher, an extant eater of taxonomically true lizards. In 1995, Daniel Chure named a new genus: "Saurophaganax", adding Greek suffix -άναξ, "", meaning "ruler", to the earlier name. Chure also found OMNH 4666 undiagnostic in relation to "Allosaurus", so he chose OMNH 01123, a neural arch, as the holotype for "Saurophaganax". — and "Saurophaganax" is not a renaming of "Saurophagus". Much of the material informally named "Saurophagus maximus", namely those diagnostic elements that could be distinguished from "Allosaurus", were referred to "Saurophaganax maximus" by Chure. They contain disarticulated bones of at least four individuals.