Sistemática y antigüedad de Paramyocastor diligens (Ameghino, 1888) (Rodentia, Caviomorpha, Myocastoridae)
Abstract
Materials (including the holotypes) of the nominal species of the myocastorids Myopotamus (= Myocastor) diligens Ameghino, Paramyocastor intactus Ameghino, lsomvopotamus affinis Rovereto and Isomyopotamus albaniri Reig, are analyzed. We propose that differences in molar morphology among these species represent individual and, especially, ontogenetic variability. Consequently, these taxa are considered synonymous, being Paramyocastor diligens (Ameghino) the correct combination. A new specimen found in the lower levels of the Monte Hermoso F¿rmation confirms the record of P. diligens in sediments of Montehermosan Age. Therefore, the biochron of this myocastorid is Montehermosan-Upper Chapadmalalan (Late Miocene- Late Pliocene).Downloads
Published
2014-02-20
Issue
Section
Articles
License
Authors publishing in Ameghiniana have the option of making their article freely available online. Authors opting for the Open Access must pay a fee of $300 (US dollars) to cover article-processing costs and to ensure the article is made open access. Please contact the Production Team after the acceptance of your manuscript if you are interested in making your article Open Access. This option implies by default a license Creative Commons Attribution Non-Commercial-NoDerivs License (CC BY NC ND). If your funding institution requires a different licensing option please communicate this to the Production Team after the acceptance of your manusctipt.
How to Cite
Sistemática y antigüedad de Paramyocastor diligens (Ameghino, 1888) (Rodentia, Caviomorpha, Myocastoridae). (2014). Ameghiniana, 39(2), 193-200. https://ameghiniana.org.ar/index.php/ameghiniana/article/view/2662
