Silurian (disambiguation)
From Wikipedia, the free encyclopedia
Silurian:
- The Silurian is a major division of the geologic timescale that extends from the end of the Ordovician period, c. 439 million years ago to the beginning of the Devonian period, c. 408.5 million years ago.
- The Silurians are also a reptilian race from the science fiction series Doctor Who.
