It was formed in the mid to late Miocene period.

It existed in what is now Slovakia during the Miocene period.

Now, remember, this specimen dates from around the early Miocene period.

Three living dolphin groups have a record that extends back to about the late Miocene period some 11 million years ago.

It is thought to have formed and last erupted during the Miocene period.

About 80% of the volume of the island was formed during the Miocene period, between 14 and 9 million years ago.

The canyon is believed to have formed 5 to 13 million years ago during the Miocene period.

It lived approximately 23-16 million years ago in the Miocene period.

Eruptions started under the sea, probably in the Miocene period some 20 million years ago.

This area was once sub-tropical, such as during the Miocene period.