CORRECTION OF MESOZOIC STRATIGRAPHY IN NW CENTRAL AMERICA FROM THE ISTHMUS OF TEHUANTEPEC TO NICARAGUA
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Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, CD MEXICO, DF, MEX
Abstract
Ten localities in the area are considered; not all known horizons are well established, especially in the U Cretaceous, but those of the U Jurassic, and L and M Cretaceous, are better indicated Types known for each locality are listed and some briefl