The Oligocene is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present . .. [it] refers to the sparsity of additional modern mammalian species of fauna after a burst of evolution during the Eocene. (wiki)
The connection belongs to Timeline connections.
Do you know of another WHS we could connect to Oligocene?
A connection should:
- Not be "self evident"
- Link at least 3 different sites
- Not duplicate or merely subdivide the "Category" assignment already identified on this site.
- Add some knowledge or insight (whether significant or trivial!) about WHS for the users of this site
- Be explained, with reference to a source