The skull of Ceratosaurus

This is an illustration of the skull of Ceratosaurus, as included in O.C. Marsh's famous volume The Dinosaurs of North America. The book has been notoriously difficult to find, often fetching high prices from booksellers, but now you can download a scan of it from the O.C. Marsh archives for free. There's plenty of other treasures there, too, although it does make me think that we at least need archives for E.D. Cope and Joseph Leidy to compliment it.

[And while you're at it, why not have a look at Gilmore's monograph on the osteology of carnivorous dinosaurs?]