Richter M., Breitkreuz C., 1997: Permian fish remains from the peine formation of northern Chile. 14 pp.
 
81253
Riff D., Kellner A. W. A., 2001: On the dentition of Baurusuchus pachecoi price (Crocodyliformes, Metasuchia) from the upper cretaceous of Brazil. 15 pp. (in English). Boletim do Museu Nacional (N.S.) Geologia 59: 1-15.
 
AZC 3119
Roček Z., 1988: List of fossil amphibians of Czechoslovakia. 28 pp. [80592] Acta zoologica cracoviensia
 
81206
Rose K. D., Koenigswald W. von, 2007: The marmot-sized paramyid rodent Notoparamys costilloi from the early Eocene of Wyoming, with comments on dental variation and occlusion in paramyids. 15 pp. Bull. Carn. Mus. Nat. Hist. 39: 111-125.
 
AZC 3211
Rzebik-Kowalska B., 1989: Pliocene and Pleistocene Insectivora (Mammalia) of Poland. V. Soricidae: Petenyia Kormos, 1934 and Blarinella Thomas, 1911. 26 pp. [80609] Acta zoologica cracoviensia
 
AZC 371137
Rzebik-Kowalska B., 1994: Insectivora (Mammalia) from the Miocene of Belchatow in Poland. II. Soricidae Fischer von Waldheim, 1817. 19 pp. [80611] Acta zoologica cracoviensia 37(1): 137-