Cambrian
Geology. noting or pertaining to a period of the Paleozoic Era, occurring from 570 million to 500 million years ago, when algae and marine invertebrates were the predominant form of life.
of or relating to Cambria; Welsh.
Geology. the Cambrian Period or System.
a native of Cambria; Welshman.
Contemporary Examples
Why Did It Take So Long For Complex Life To Evolve On Earth? Blame Oxygen. Matthew R. Francis November 1, 2014
Historical Examples
The Elements of Geology William Harmon Norton
The Story of the Cambrian C. P. Gasquoine
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 Various
The Story of the Cambrian C. P. Gasquoine
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 Various
Welsh Folk-Lore Elias Owen
The Story of the Cambrian C. P. Gasquoine
The Sleeping Bard Ellis Wynne
Notes and Queries, Vol. V, Number 134, May 22, 1852 Various
adjective
of, denoting, or formed in the first 65 million years of the Palaeozoic era, during which marine invertebrates, esp trilobites, flourished
of or relating to Wales
noun
the Cambrian, the Cambrian period or rock system
a Welsh person
adj.
Cambrian
(kām’brē-ən, kām’-)
The first period of the Paleozoic Era, from about 540 to 505 million years ago. During this time warm seas and desert land areas were widespread, and animal life diversified rapidly during what is known as the Cambrian Explosion. See Chart at geologic time.
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