The ilium is the uppermost and largest bone of the pelvis, and appears in most vertebrates including mammals and birds, but not bony fish. All reptiles have an ilium except snakes, although some snake species have a tiny bone which is considered to be an ilium.[1]
- ^ Jacobson, Elliott R. (2007). Infectious Diseases and Pathology of Reptiles. CRC Press. p. 7. ISBN ISBN 0849323215, 9780849323218. http://books.google.ca/books?id=hhO4WAZcVLEC&pg=PA7&lpg=PA7&dq=%22ilium%22+%22in+snakes%22&source=web&ots=XeieL4udly&sig=_6h9LYjMMXrl5HmmDJmhNRICBTc&hl=en&sa=X&oi=book_result&resnum=6&ct=result. Retrieved on 2009-01-09.