EXAMPLE Marine invertebrate fauna from the Upper Jurassic of southern Mexico (14 pt Times New Roman, Bold) María del Carmen Rosales Dominguez 1, Ana Bertha Villaseñor Martínez 2 (12 pt Times New Roman, regular) 1. Instituto Mexicano del Petróleo, México, 02030, Mexico. (E-mail: mcrosales@imp.mx) 2. Departamento de Paleontología, Instituto de Geología, UNAM, 04510, Mexico ((E-mail: anab@unam.mx) (10 pt Times New Roman, regular) The marine Upper Jurassic macroinvertebrate fauna of Mexico is characterized by bivalves, ammonites and gastropodos, from which the……. (12 pt Times New Roman, interline 1.5) Key words: Jurassic; marine biostratigraphy; Mexico (12 pt Times New Roman, bold): (12 pt Times New Roman) References: Padilla y Sánchez, R. J. 1985. Las estructuras de la Curvatura de Monterrey, Estados de Coahuila, Nuevo León, Zacatecas y San Luis Potosí. Revista del Instituto de Geología, Universidad Nacional Autónoma de México, 6 (1), 1-20. Olóriz, F., Marques, B. & Moliner, L. 1988. The Platform Effect: An example from Iberian shelf areas in the lowermost Kimmeridgian. Pp. 543-562 in R. Rocha, and A. F. Soares (eds.) 2nd International Symposium on Jurassic Stratigraphy, Lisboa, 1178 pp. Olóriz, F. & Villaseñor, A.B. 2010. Ammonite biogeography: From descriptive to dynamic, ecological interpretations. Pp 253-265 in K. Tanabe, Y. Shigeta, T. Sasaki, and H. Hirano (eds.) 2010, Cephalopods - Present and Past Tokai University Press, Tokyo.