Graduate, Eötvös Loránd University, Budapest, Hungary, 1966. Doctor of Philosophy in Geology, Eötvös Loránd University, Budapest, Hungary, 1984. Doctor of Science, Hungarian Academy of Sciences, 1999.
Junior scientist Hungarian Geological Institute, Budapest, 1966-1967, senior scientist, 1967-1970, project manager, 1990-1999, science advisor, since 1999. In charge mineral resources Mongolian-Hungarian Geological Expedition, Choibalsan, Mongolia, 1970-1971. Science secretary Hungarian Central Office Geology, Budapest, 1971-1978.
Head department Hungarian Geological Institute, 1978-1990, project manager, 1990-1999. Head regional geological department Eötvös Loránd University, since 1999. Science educator, since 1989, habilitatus, since 2000.
Secretary Stratigraphic Commission Hungary, Budapest, 1972-1980, president, since 1990. Member International Cretaceous Subcommn., 1984-1998. Co-leader Tethyan Cretaceous Correlation, International Geological Correlation Program, 1987-1993.
Honorary lecturer Eötvös Loránd University, 1990-1999. Correspondent Geological Survey, Vienna, 1989. Secretary Commission Geological Hungarian Academy of Sciences, since 1996.
Vice president Society Geological Herit. Hungarian, 1997-1999.
Member Carpatho-Balkan Geological Association (president Strategiraphic, Paleogeog. and Paleontologic Commission), New York Academy Sciences, Council Nature Protection Hungary.
Married Mária Kellencz, November 30, 1968. Children: Ajna, Ilma, Gábor.