INSUGEO   12554
INSTITUTO SUPERIOR DE CORRELACION GEOLOGICA
Unidad Ejecutora - UE
artículos
Título:
Actualización del conocimiento de los roedores del Mioceno tardío de la Mesopotamia argentina: aspectos sistemáticos, evolutivos y paleobiogeográficos
Autor/es:
NORMA NASIF; ADRIANA CANDELA; LUCIANO RASIA; CAROLINA MADOZZO JAÉN; RICARDO BONINI
Revista:
PUBLICACION ESPECIAL - ASOCIACION PALEONTOLOGICA ARGENTINA
Editorial:
ASOCIACIÓN PALEONTOLÓGICA ARGENTINA
Referencias:
Lugar: Buenos Aires; Año: 2013 vol. 14 p. 153 - 153
ISSN:
0328-347X
Resumen:
Rodents recorded in the ?Conglomerado osífero?, outcropping in the base of the Ituzaingó Formation (=?Mesopotamiense?, late Miocene, Huayquerian Land Mammals Age), are included in the Caviomorpha. Remains recovered in this unit show important species diversity, encompassing all Caviomorph superfamilies and almost all the families recognized within the infraorder. Moreover, these rodents have a great variety of morphological patterns, such as wide body size ranges, and different degree of dental complexity and hypsodonty. Both attributes, taxonomic and morphological diversity, provide Mesopotamian species a particular importance for the explication of evolutionary and biogeographical aspects in the context of South American caviomorph history. In spite of the recent advances on systematic aspects of these rodents, in particular on those from the ?Mesopotamiense?, yet several aspects concerning the number of species and their phylogenetic affinities remain unresolved. In this contribution the systematic knowledge of Caviomorpha from the Ituzaingó Formation (Entre Ríos Province) is updated and preliminary hypotheses about the biogeographic and palaeoenvironmental significance of some of them are proposed.
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