He earned his PhD in Geological Sciences at the National University of Córdoba (Argentina) in 1972 in a subject dealing with the stratigraphy, age and facial changes of the Vaca Muerta Formation. He has worked a life time with the stratigraphy of the Neuquén basin at the Argentinean Geological Survey, where he has been responsible of the surface mapping of the Neuquén province and adjacent areas. In the academic field –within many achievements- he was President of the Argentinean Geological Association, a fellow the John Simon Guggenheim Memorial Foundation at the University of Colorado (Boulder, USA), and member of the National Academy of Sciences (Cordoba). For his contributions to the stratigraphy of the Jurassic and Cretaceous of Argentina, he was honored with several distinctions and prizes. He currently also teachs Historical Geology at the National University of La Plata and his working place is in the Buenos Aires Natural History Museum, which depends of the Argentine Research Council (CONICET). In the last fifteen year he interacts more and more with geologists of oil companies operating in the Neuquén Basin, and after its retirement of the Geological Survey, he is much involved in organizing field trips oriented for the oil industry, focusing on several aspects of the outcrop geology and stratigraphy of source and reservoirs rocks as well as seals and stratigraphic traps. Within the recent companies involved in field trips are YPF (Argentina),  Petrobras (Brasil), Statoil (Norway), and Exploro (Norway).