The arthropod macrofauna from the Middle Member of the lithographic limestones of the
Tlayúa Formation, in quarries at Tepexi, México, is comprised of marine and nonmarine …

Por la abundancia, variedad y conservación de su paleobiota, la cantera Tlayúa constituye
una de las localidades fosilíferas cretácicas (Albiano) más importantes de América del …

ABSTRACT A new locality named El Pelillal (Cerro del Pueblo Formation, Late Cretaceous,
Campanian) in the southeastern area of the State of Coahuila, México yields an assemblage …

AR STRACT A model of Jurassic-Cretaceous paleogeographic evolution for the northern
portion of the Mixteca terrane is presented. The interpretation is based mainly upon …

1. Abstract The Tlayúa Quarry in Tepexi de Rodríguez, Puebla, Mexico, is one of the most
important localities in the New World because of its uniquely rich biota. For the last twenty …

ABSTRACT A new genus and species of pycnodont, Tepexichthys aranguthyorumgen. et sp.
n0v., is described from the Tlayúa quarries, near Tepexi de Rodríguez, Puebla. The …

Several dinosaur localities have been reported from Mexico. In 1926 Werner Janensch
reported the first dinosaur bone remains as Monoclonius from La Soledad, western …

Paleozoic rocks in the Oaxaca Terrane of southern Mexico occur as two outliers (Rio Salinas
and Santiago Ixtaltepec) unconformably overlying the 1-Ga Oaxaca Complex. They consist …

RESUMEN En el Terreno Mixteco donde afloran las Formaciones Conglomerado Cualac y
Rosario del Jurásico Inferior y Otlaltepec, Tecomazuchil y Zorrillo-Taberna indiferenciada …

By early Mesozoic time, a major plate reorganization produced the breakup of Pangea,
which was the most recent supercontinent assembled on Earth. Due to its paleogeographic …