- 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.
- the Cambrian Period or System.
- a native of Cambria; Welshman.
- 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 period or rock system
- a Welsh person
