1. Jepsen, G. L. Science 154, 1333–1339 (1966).
2. Jepsen, G. L. in Biology of Bats Vol. 1 (ed. Wimsatt, W. A.) 1–64 (Academic, New York, 1970).
3. Revilliod, P. Abh. hess. geol. Landesanst. 7, 157–201 (1917).
4. Richter, G. & Storch, G. Natur. Mus., Frankf. 110, 353–367 (1980).
5. Smith, J. D. & Storch, G. Senckenberg. biol. 61, 153–167 (1981).