1. Advances in biostratigraphy of the Agrio Formation (Lower Cretaceous) of the Neuquén Basin, Argentina: ammonites, palynomorphs, and calcareous nannofossils;Aguirre-Urreta;Palaeogeogr. Palaeoclimatol. Palaeoecol.,1999
2. Hallazgo de Lepidotes maximus Wagner (Pisces) en el Titoniano de la Provincia de Neuquén, Argentina. II Congreso Latinoamericano de Paleontología, Porto Alegre, Brazil;Aramayo;Annals,1981
3. Varasichthys ariasi n. gen. et sp. from the Upper Jurassic of Chile (Pisces, Teleostei, Varasichthyidae n. fam.);Arratia;Palaeontogr. A,1981
4. Chongichthys dentatus, new genus and species from the Late Jurassic of Chile (Pisces: Teleostei: Chongichthyidae, new family);Arratia;J. Vertebr. Paleontol.,1982
5. Some osteological features of Varasichthys ariasi arratia (Pisces, teleostei) from the Late Jurassic of Chile;Arratia;Palaontol. Z.,1984