About The Word Silurian
Learn about the word Silurian to help solve your crossword puzzle. Discover Silurian definitions and meaning, origins, synonyms, related terms and more at the free Crossword Dictionary.
Silurian
| Silurian Definition And Meaning |
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What's The Definition Of Silurian?
[n] from 405 million to 425 million years ago; first air-breathing animals
Synonyms | Synonyms for Silurian: Silurian period Related Terms | Find terms related to Silurian: See Also | geological period | Paleozoic | Paleozoic era | period Silurian In Webster's Dictionary \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.
Note: 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. |
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