1. Amprino R, Godina G (1947) La struttura delle ossa nei vertebrati. Commentationes Pontificia Acad Sci 11: 329–464
2. Enlow DH, Brown SO (1956) A comparative histological study of fossil and recent bone tissue. Part I. Texas J Sci 8: 405–443
3. Enlow DH, Brown SO (1957) A comparative histological study of fossil and recent bone tissue. Part II. Texas J Sci 9: 186–214
4. Enlow DH, Brown SO (1959) A comparative histological study of fossil and recent bone tissue. Part III. Texas J Sci 10: 187–230.
5. Schmid E (1972) Atlas of animal bone/Knochenatlas. Elsevier, Amster-dam London New York