over 100 fossil bones, including those of Cryolophosaurus. The specimens were formally named and described in 1994 by Hammer and Hickerson, in the journal Science. During the 2003 season, a field team returned and collected more material from the original site. A second locality was discovered about higher in the section on Mt. Kirkpatrick. The name Cryolophosaurus ellioti is derived from the Greek words κρυος (meaning 'cold' or 'frozen', in reference to its discovery in Antarctica), λοφος (meaning 'crest') and (meaning 'lizard'), thus "cold crest lizard". Hammer and Hickerson named the species C. ellioti, after David Elliot, who had made the initial discovery of the fossils. Description Cryolophosaurus was a large, well-built theropod, one of the largest of its time. The holotype specimen is estimated to have reached long and weighed . Some researchers noted that the holotype individual probably represents a sub-adult, so adults could have been larger. Despite having slender proportions, Cryolophosaurus is one of the largest known Early Jurassic theropods. The holotype FMNH PR1821 is the only fully described specimen of Cryolophosaurus. The specimen consists of an incomplete skull and mandibles lacking most of their front half; nine maxillary teeth; a fragmentary sixth cervical centrum; cervical vertebrae 7-10; several posterior cervical ribs; several anterior dorsal vertebrae; most mid and posterior dorsal vertebrae; several dorsal ribs; the fifth sacral vertebrae; three chevrons; many partial and complete caudal vertebrae and centra; two partial humeri; a proximal radius; a proximal ulna; a partial ilium; a proximal pubis; both ischia, but only one distal; two incomplete femora; the distal end of a tibia; the distal end of a fibula, and the astragalus and calcaneum. In 2013, new material of Cryolophosaurus was unearthed in Antarctica. The description of this material has not yet been published in a non-abstract form. Skull The holotype of Cryolophosaurus consists of a high, narrow skull, which was discovered articulated with the rest of the skeleton. The skull is an estimated long. It has a peculiar nasal crest that runs just over the eyes, where it rises perpendicular to the skull and fans out. It is thin and highly furrowed, giving it a unique "pompadour" appearance and earned it the nickname "Elvisaurus." The crest is an extension of the skull bones, near the tear ducts, fused on either side to orbital horns which rise from the eye sockets. While other theropods like the Monolophosaurus have crests, they usually