Plio-Pleistocene

• abstract: The term Plio-Pleistocene refers to the geological period more recent than circa 5 million years (Ma) ago, incorporating both the formally defined epochs of the Pliocene and the Pleistocene. Strictly, this would exclude the Holocene - the last 12 thousand years - but informally most Earth Scientists would probably consider the term to incorporate this period.

以上来源于: WordNet