Definition of Silurian in English:
1Of, relating to, or denoting the third period of the Paleozoic era, between the Ordovician and Devonian periods.
- Conventionally, the Cambrian, Ordovician, and Silurian systems constitute the Lower Palaeozoic and the Devonian, Carboniferous, and Permian comprise the Upper Palaeozoic.
- These are overlain by low-grade metamorphosed sediments and volcanics of Ordovician and Silurian age.
- The so-called ophiolitic relics at the Moldanubian-Brunovistulian boundary show Early Ordovician to Silurian crystallization ages.
1.1 (as noun the Silurian) The Silurian period or the system of rocks deposited during it.
Definition of Silurian in:
- British & World English dictionary
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