Note 133 — Chapter XX · CLASS MAMMALIA.
Reading edition
E.D. Cope, "The Creodonta," Amer. Natural., 1884. W.B. Scott, "Revision of the N. American Creodonta," P. Ac. Philad., 1892.
Reading edition
E.D. Cope, "The Creodonta," Amer. Natural., 1884. W.B. Scott, "Revision of the N. American Creodonta," P. Ac. Philad., 1892.