Fossil evidence for continental drift theory proposed over 100 yrs ago. http://t.co/qbrQuwwiAk #FossilFriday pic.twitter.com/FDPSPkzlsh
— USGS (@USGS) February 27, 2015
Fossil evidence for continental drift theory proposed over 100 yrs ago. http://t.co/qbrQuwwiAk #FossilFriday pic.twitter.com/FDPSPkzlsh
— USGS (@USGS) February 27, 2015