4th European meeting on the Palaeontology and Stratigraphy of latin America Tres Cantos, Madrid, september, 12-14, 2007 - European Meeting on the Palaeontology and Stratigraphy of Latin America (; Díaz-Martínez, E.,; Rábano, I.,; e-libro, Corp. (Instituto Geológico y Minero de España, 2007)