- 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.
Origin of Cambrian
Examples from the Web for cambrian
Then in the Cambrian era, around 570 million years ago, recognizably complex animal life evolved, including vertebrate ancestors.Why Did It Take So Long For Complex Life To Evolve On Earth? Blame Oxygen.
Matthew R. Francis
November 2, 2014
The Mid-Wales like the Cambrian, had had a chequered early career.
But of the Cambrian as we know it to-day there will be something more to be said presently.
But it is not only in length that the Cambrian has developed in recent years.
But the Cambrian had stout friends to put in the witness-box.
It was leased to the Cambrian, but got into Chancery and was closed a few years later.
- 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
- the Cambrian the Cambrian period or rock system
- a Welsh person
Word Origin and History for cambrian
1650s, "from or of Wales or the Welsh," from Cambria, variant of Cumbria, Latinized derivation of Cymry, the name of the Welsh for themselves, from Old Celtic Combroges "compatriots." Geological sense (of rocks first studied in Wales and Cumberland) is from 1836.
- 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.