SciELO - Scientific Electronic Library Online

vol.28 issue3Biostratigraphy and paleoecology of the Qom Formation in Chenar area (northwestern Kashan), IranTectonothermal history of the Mesoproterozoic Novillo Gneiss of eastern Mexico: support for a coherent Oaxaquia microcontinent author indexsubject indexsearch form
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • Have no similar articlesSimilars in SciELO


Revista mexicana de ciencias geológicas

On-line version ISSN 2007-2902Print version ISSN 1026-8774


GONZALEZ-RUIZ, Laureano Raúl et al. A new Glyptodontidae (Mammalia, Xenarthra, Cingulata) from the Miocene of Patagonia (Argentina) and comments about the systematics of the "Friasian" glyptodonts. Rev. mex. cienc. geol [online]. 2011, vol.28, n.3, pp.566-579. ISSN 2007-2902.

In this contribution we described a new genus and species of Glyptodontidae, coming from a new middle Miocene fossiliferous locality named Tranquera Blanca (northwest of Chubut Province, Patagonia Argentina, Patagonia). The most complete specimen recovered includes osteoderms from the cephalic shield, dorsal carapace and caudal armour. The most remarkable features of these new taxon are: a) osteoderms from the cephalic shield large and without the dorsal carapace ornamentation pattern; b) osteoderms from the dorsal carapace punctuated and with irregular edges; c) movable osteoderms in the antero-lateral region of the dorsal carapace; d) osteoderms from the postero-lateral region of the dorsal carapace with accessory antero-lateral peripheralfigures; e) osteoderms from de caudal rings of the caudal armour with large and numerous foramina; f large and rigid caudal tube absent. A revision of the previously recognized Glyptodontidae for the patagonian middle Miocene ("Friasian" SALMA) indicates that taxa present includes (apart of the new taxon here described): Propalaehoplophorinae gen. et sp. indet., Eonaucum colloncuranum (Glyptodontidae incertae sedis), Propalaehoplophorus informis (Propalaehoplophorinae), Palaehoplophoroides rothi (Palaehoplophorini), Palaehoplophorus meridionalis (Palaehoplophorini) and Glyptodontidae gen. et sp. indet. Finally, the type locality is tentatively correlated with other fossiliferous localities of the middle Miocene.

Keywords : Glyptodontidae; Xenarthra; Miocene; Friasian; Patagonia; Argentina.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License