1. Besse, J. and V. Courtillot, Revised and synthetic apparent polar wander paths of the African, Eurasian, North American and Indian Plates, and true polar wander since 200 Ma, J. Geophys. Res., 96, 4029–4050, 1991.
2. Camps, P. and M. Prèvot, A statistical model of the fluctuation in the geomagnetic field from paleosecular variation to reversal, Science, 273, 776–779, 1996.
3. Cande, S. C. and D. V. Kent, Revised calibration of the geomagnetic polarity time scale for the Late Cretaceous and Cenozoic, J. Geophys. Res., 100, 6093–6095, 1995.
4. Castillo-Hernandez, D. and F. Romero-Rios, Estudio geologico-regional de Los Altos, Jalisco y El Bajio: Comision Federal de Electricidad, Gerencia de Proyectos Geotermoelectricos, Depto. Exploracion, Open File Report, 02-91, 35 pp., 1991.
5. Cerca-Mart/’inez, L. M., Relacion estratigrafica y geocronologica entre el volcanismo de la Sierra Madre Occidental y el Cinturon Volcanico Mexicano en la parte sur de la Sierra de Guanajuato, M. Sc. Thesis, Dept. of Geology, Centro de Investigacion y Ensenanza Superior de Ensenada, Baja California, Mexico, 119 pp., 1998.