Type
Age
Age range
448.4–443.1 Ma
Llandovery
Rhuddanian
Late Ordovician
Hirnantian
Katian
Rhuddanian
Bolindian
Eastonian
Keiloran
Bolindian
Eastonian
448.6448.4448.2448.0447.8447.6447.4447.2447.0446.8446.6446.4446.2446.0445.8445.6445.4445.2445.0444.8444.6444.4444.2444.0443.8443.6443.4443.2443.0