The MN zonation is a system used to correlate mammal

Mammal

Mammals are members of a class of air-breathing vertebrate animals characterised by the possession of endothermy, hair, three middle ear bones, and mammary glands functional in mothers with young...

-bearing fossil

Fossil

Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...

 localities in the Miocene

Miocene

The Miocene is a geological epoch of the Neogene Period and extends from about . The Miocene was named by Sir Charles Lyell. Its name comes from the Greek words and and means "less recent" because it has 18% fewer modern sea invertebrates than the Pliocene. The Miocene follows the Oligocene...

 and Pliocene

Pliocene

The Pliocene Epoch is the period in the geologic timescale that extends from 5.332 million to 2.588 million years before present. It is the second and youngest epoch of the Neogene Period in the Cenozoic Era. The Pliocene follows the Miocene Epoch and is followed by the Pleistocene Epoch...

 of Europe. It consists of sixteen consecutive zones (numbered MN 1 through MN 17; MN 7 and 8 have been joined into MN 7/8) defined through reference faunas, well-known sites that other localities can be correlated with.

The zones are as follows:

• MN 1
• MN 2
• MN 3
• MN 4
• MN 5
  MN 5 (biostratigraphic zone)
  In biostratigraphy, MN 5 is one of the MN zones used to characterize the fossil mammal faunas of the Neogene of Europe. It is preceded by MN 4 and followed by MN 6 and is part of the Orleanian age of the middle Miocene...
  
  
• MN 6
• MN 7/8
• MN 9
• MN 10
• MN 11
• MN 12
• MN 13
• MN 14
• MN 15
• MN 16
• MN 17