Hyracodontids and rhinocerotids (Mammalia, Perissodactyla, Rhinocerotoidea) from the Paleogene of Mongolia - Dashzeveg, Demberelyin; Case, Gerard R. (1991)
Enth. außerdem u.a.: A new species of chimaeroid fish from the Upper Paleocene (Thanetian) of Maryland, U.S.A. / G. R. Case