SciELO - Scientific Electronic Library Online

 
vol.45 issue2 author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

  • Have no cited articlesCited by SciELO

Related links

  • Have no similar articlesSimilars in SciELO

Share


Ameghiniana

On-line version ISSN 1851-8044

Abstract

ALBERDI, María Teresa; CERDENO, Esperanza  and  PRADO, José Luis. Stegomastodon platensis (Proboscidea, Gomphotheriidae) from Pleistocene levels of Santiago del Estero, Argentina. Ameghiniana [online]. 2008, vol.45, n.2, pp.257-271. ISSN 1851-8044.

Mammal fossil remains from Santiago del Estero Province (Argentina) are very poorly known. In this paper, best preserved specimens of Gomphotheriidae (Mammalia, Proboscidea) are presented. They come from Quaternary beds outcropping along the Río Dulce, near of the city of Santiago del Estero. The comparative study with other South American gomphotheres remains, mainly from Argentina and Brazil, allow their identification as Stegomastodon platensis, being among the largest forms of this species. Previous studies referred this locality to the late Pleistocene. Enamel tooth sample was dated to 19.900 ± 120 BP by AMS 14C, supporting that age for this fauna. Carbon and oxygen isotopic composition of the tooth enamel has been analyzed to get new data on the paleodiet and habitat preference of South American gomphotheres. Carbon isotopic values indicate an adaptation to an exclusively C4 diet. The oxygen isotopic analysis indicates cooler climatic conditions than present.

Keywords : Gomphotheriidae; Stegomastodon platensis; Late Pleistocene; Santiago del Estero; Argentina; South America.

        · abstract in Spanish     · text in Spanish

 

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