- noting or pertaining to an interval of time corresponding to the Miocene and Pliocene epochs and accorded the status of a period when the Tertiary is considered an era.Compare Paleogene.
- the Neogene Period or System.
- of, denoting, or formed during the Miocene and Pliocene epochs
- the Neogene the Neogene period or system
- The youngest of two subdivisions of the Tertiary Period, including the Miocene and Pliocene Epochs.