Did Ice Age Cause Mastodon Extinction?
New Research Suggest Several Causes
Central Washington University, Oct. 29, 2017
http://www.cwu.edu/did-ice-age-cause-mastodon-extinction-new-research-suggest-several-causes
Emery-Wetherell, Meaghan M., Brianna K. McHorse, and
Edward Byrd Davis. "Spatially explicit analysis sheds new
light on the Pleistocene megafaunal extinction in North
America." Paleobiology (2017): 1-14.
https://www.researchgate.net/publication/319333874_Spatially_explicit_analysis_sheds_new_light_on_the_Pleistocene_megafaunal_extinction_