Amonitas del Coniaciano (Cretácico Superior) de la región de Tepetlapa, Estado de Guerrero

Abstract

The presence of Pseudotissotia (Pseudotissotia) galliennei (D'Orbigny). Coilopoceras colleti Hyatt, Coilopoceras requieni (D'Orbigny), Forresteria (Forresteria) alluaudi (Boule, Lemoine and Thevenin) and Texasia dentatocarinata (Römer) has been determined in samples collected from the Mexcala Formation at Llanos de Tehuitzingo and Pochutla, in the northeast part of the State of Guerrero. The age of the fossils is Turonian-Coniacian.