French Silurien Cited by user Philippe rogez on 05 May 2024 Le Silurien, parfois anciennement nommé Gothlandien, est un système géologique qui s'étend de -443,4 à -419,2 Ma.
English Silurian Cited by user Kent G. Budge on 21 Feb 2022 The Silurian is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at million years ago (Mya), to the beginning of the…