Miscelánea 14
Los roedores del “Mesopotamiense” (Mioceno tardío, Formación Ituzaingó) de la provincia de Entre Ríos (Argentina)
Descargar trabajo en formato PDFAbstract
MESOPOTAMIENSE RODENTS (LATE MIOCENE, ITUZAINGO FORMATION FO ENTRE RÍOS, PROVINCE (ARGENTINA). The Hystricognathi rodents recorded in the “Conglomerado osífero” (= “Mesopotamiense”, Late Miocene, Huayquerian Age), outcropping in the base of the Ituzaingó Formation (Entre Ríos, Argentina), show a wide species diversity, encompassing all South American superfamilies of the Suborder. Among them, the unusual assemblage of echimyids, abrocomids, neoepiblemids and Myocastor is identified, a unique composition not registered before in any other South American Cenozoic fossil fauna. In spite of the rich representativity of these “Mesopotamian” Hystricognathi, their systematics, biogeographic history, paleoenvironmental and biochronological significance remain poorly known. This contribution summarizes the state of knowledge of the Hystricognathi families from the Ituzaingó Formation (Entre Rios Province) and provides a preliminary list of species of the Suborder Hystricognathi coming from this unit, as a reference framework for future studies.
