Lucas, S. G.; Alvarado, G. E.; Vega, E. The Pleistocene mammals of Costa Rica. Journal of Vertebrate Paleontology. 1997, 17 (2): 413–427. doi:10.1080/02724634.1997.10010985.
Lucas, S. G.; Morgan, G. S.; Estep, J. W.; Mack, G. H.; Hawley, J. W. Co-occurrence of the proboscideans Cuvieronius, Stegomastodon, and Mammuthus in the lower Pleistocene of southern New Mexico. Journal of Vertebrate Paleontology. 1999, 19 (3): 595–597. doi:10.1080/02724634.1999.10011169.
Wikiwand in your browser!
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.