The Upper Sinemurian ammonite succession in the Sierra Madre Oriental (Mexico).

Christian Meister (1) , Joachim Blau , Jean-Louis Dommergues (2) , Rudolf Schlatter (3) , Reinhard Schmidt-Effing (4)

1 Département de Géologie et de Paléontologie
2 BGS - Biogéosciences [UMR 6282]
3 Naturkundemuseum
4 Institut für Geologie und Paläontologie

In the Sierra Madre Oriental (Mexico), the biostratigraphic subdivision of the Upper Sinemurian can be refined. It has been possible to differentiate 11 horizons from the upper Obtusum Zone to the top of the Raricostatum Zone which are correlated with the NW European standard zonation. The index species of each horizon is figured.

Mots clés: ammonites; Early Jurassic; Sinemurian; biostratigraphy; Mexico; Sierra Madre Oriental

Domaines: Paléontologie

Christian Meister, Joachim Blau, Jean-Louis Dommergues, Rudolf Schlatter, Reinhard Schmidt-Effing. The Upper Sinemurian ammonite succession in the Sierra Madre Oriental (Mexico).. Volumina Jurassica, 2009, 7, pp.31-36. ⟨hal-00491406⟩