1. The Lower Cretaceous ammonite Paraspiticeras from the Neuquén basin, west-central Argentina;Aguirre-Urreta;Neues Jahrbuch für Geologie und Paläontologie,1993
2. The ammonite sequence in the Agrio Formation (Lower Cretaceous), Neuquén Basin, Argentina;Aguirre-Urreta;Geological Magazine,1997
3. Lower Cretaceous ammonites from the Neuquén Basin, Argentina: a new heteromorph fauna from the uppermost Agrio Formation;Aguirre-Urreta;Cretaceous Research,2012
4. Advances in the biostratigraphy of the Agrio Formation (Lower Cretaceous) of the Neuquén Basin, Argentina: ammonites, palynomorphs, and calcareous nannofossils;Aguirre-Urreta;Palaeogeography, Palaeoclimatology, Palaeoecology,1999
5. The Lower Cretaceous Chañarcillo and Neuquén Andean basins: ammonoid biostratigraphy and correlations;Aguirre-Urreta;Geological Journal,2007