The Telychian Age was between 438.5 ± 1.2 million years ago (Ma) and 433.4 ± 0.8 Ma. The Telychian Age succeeds the Aeronian Age and precedes the Sheinwoodian Age.
The Telychian Age lasted between 438.5 million years ago and 433.4 million years ago, succeeding the Aeronian Age and preceding the Sheinwoodian Age.