Related formspost-Si·lu·ri·an, adjectivepre-Si·lu·ri·an, adjective, noun
Examples from the Web for silurian
In this brief sketch it is quite impossible to relate the many changes of species and genera during the Silurian.The Elements of Geology|William Harmon Norton
Snakes developed in the Silurian Era, some twenty million years ago.Carmen Ariza|Charles Francis Stocking
Are not the beings of the Silurian and Devonian epoch prophecies of the forms which were evolved out of them?Studies in the Out-Lying Fields of Psychic Science|Hudson Tuttle
We know as yet no Silurian animal that lived on the land or breathed air.The Story of the Earth and Man|J. W. Dawson
The rocks of these two earlier periods are those of the Cambrian and Silurian groups.