Authors: Aguirre-Urreta, MB Concheyro, A Lorenzo, M Ottone, EG Rawson, PF

Citation: Mb. Aguirre-urreta et al., Advances in the biostratigraphy of the Agrio Formation (Lower Cretaceous) of the Neuquen Basin, Argentina: ammonites, palynomorphs, and calcareous nannofossils, PALAEOGEO P, 150(1-2), 1999, pp. 33-47