Si*lu"ri*an (?), a. [From L.
Silures, a people who anciently inhabited a part of England and
Wales.] (Geol.) 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.
&fist; The Silurian formation, so named by Murchison, is divided
into the Upper Silurian and Lower Silurian. The lower
part of the Lower Silurian, with some underlying beds, is now
separated under the name Cambrian, first given by Sedwick.
Recently the term Ordovician has been proposed for the Lower
Silurian, leawing the original word to apply only to the Upper
Silurian.
Si*lu"ri*an, n. The Silurian
age.
Si*lu"ri*an (?), a. [From L.
Silures, a people who anciently inhabited a part of England and
Wales.] (Geol.) 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.
&fist; The Silurian formation, so named by Murchison, is divided
into the Upper Silurian and Lower Silurian. The lower
part of the Lower Silurian, with some underlying beds, is now
separated under the name Cambrian, first given by Sedwick.
Recently the term Ordovician has been proposed for the Lower
Silurian, leawing the original word to apply only to the Upper
Silurian.
Si*lu"ri*an, n. The Silurian
age.
