[sometimesp-] designating or of the second geologic epoch of the Neogene, characterized by the joining of what are now North and South America, the formation of the Arctic ice cap, the extensive migration of mammals between continents, and the development of apelike humans in Africa
"Pliocene." YourDictionary, n.d. Web. 14 October 2018. <http://www.yourdictionary.com/pliocene>.
Pliocene. (n.d.). Retrieved October 14th, 2018, from http://www.yourdictionary.com/pliocene
Of, relating to, or being the epoch of geologic time from 5.3 to 2.6 million years ago, the most recent epoch of the Tertiary Period. It is characterized by the appearance of distinctly modern animals and by the expansion of grasslands. geologic time
The Pliocene Epoch.
Origin of Pliocene
Greek pleiōnmore ; see pelə-1 in Indo-European roots. -cene