Meaning Of The Word Ordovician

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  4. Ordovician

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Ordovician Meaning

Ordovician Definition
Ordovician Definition

What's The Definition Of Ordovician?

Ordovician in American English
designating or of the second geologic period of the Paleozoic Era, characterized by the development of abundant marine invertebrates and the first vertebrates
adjective: noting or pertaining to a geologic period of the Paleozoic Era, from 500 million to 425 million years ago, notable for the advent of fish
noun: the Ordovician Period or System

Ordovician in British English
adjective: of, denoting, or formed in the second period of the Palaeozoic era, between the Cambrian and Silurian periods, which lasted for 45 000 000 years during which marine invertebrates flourished
noun

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