SciELO - Scientific Electronic Library Online

 
vol.29 número1Modelos tectonoestratigráficos de las cuencas de Tiburón y Wagner en el norte del Golfo de CaliforniaLímites temporales de la deformación por acortamiento Laramide en el centro de México índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Revista mexicana de ciencias geológicas

versión impresa ISSN 2007-2902

Resumen

QUIROZ-BARROSO, Sara A.; SOUR-TOVAR, Francisco  y  CENTENO-GARCIA, Elena. Cisuralian gastropods and bivalves (Lower Permian) from Otlamalacatla, Hidalgo, Mexico. Rev. mex. cienc. geol [online]. 2012, vol.29, n.1, pp. 158-178. ISSN 2007-2902.

New fauna of gastropods and bivalves colleted in outcrops of Tuzancoa Formation, near Otlamalacatla town, northeast of Hidalgo state, are described. The specimens are preserved like imperfect moulds with some deformation that limit the precise taxonomic determination. However, it is possible to report the presence of five species of gastropods from the families Bellerophontidae, Omphalotrochidae, Eotomariidae, Naticopsidae and Soleniscidae, and 20 species of pelecypods from the families Nuculidae, Mytilidae, Myalinidae, Pterineidae, Bakevellidae, Euchondriidae, Aviculopectinidae, Deltopectinidae, Chaenocardiidae, Streblochondriidae, Heteropectinidae, Acanthopectinidae, Limidae, Schizodidae, Trigoniidae, Astartidae, Sanguinolitidae and Solenomorphidae; most of these species are reported for the first time in Mexico. The principal affinities of this fauna are found in West Texas and belong to earlier Permian (Cisuralian) of Grandian province.

Palabras llave : Tuzancoa Formation; gastropods; bivalves; Permian; Mexico; Grandian province.

        · resumen en Español     · texto en Español     · pdf en Español