Silurian — Of or pertaining to the country of the ancient Silures; -- a term applied to the earliest of the Paleozoic eras, and also to the strata of the era, because most plainly developed in that country.
Silurian — The Silurian age.
These Also : Archaean; Asaphus; Atrypa; Calymene; Cambrian; Chaetetes; Chazy; Cincinnati;
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