from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Of or relating to Wales; Welsh.
- adj. Of or belonging to the geologic time, system of rocks, or sedimentary deposits of the first period of the Paleozoic Era, characterized by desert land areas, warm seas, and rapid early diversification of marine life resulting in the rise of almost all modern animal phyla. See Table at geologic time.
- n. A Welshman or Welshwoman.
- n. The Cambrian Period.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. of a geologic period within the Paleozoic era; comprises lower, middle and Furongian epochs from about 542 to 490 million years ago
- adj. of, or relating to Wales
- n. the Cambrian period
- n. a Welsh person
from the GNU version of the Collaborative International Dictionary of English
- adj. Of or pertaining to Cambria or Wales.
- adj. Of or pertaining to the lowest subdivision of the rocks of the Silurian or Molluscan age; -- sometimes described as inferior to the Silurian. It is named from its development in Cambria or Wales. See the Diagram under Geology.
- n. A native of Cambria or Wales.
- n. The Cambrian formation.
from The Century Dictionary and Cyclopedia
- Relating or pertaining to Wales or Cambria; Welsh.
- n. A Welshman.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a native or resident of Wales
- adj. of or relating to or characteristic of Wales or its people or their language
- n. from 544 million to about 500 million years ago; marine invertebrates
The term Cambrian explosion describes the geologically sudden appearance of animals in the fossil record during the Cambrian period of geologic time.
Eventually the O2 levels reduced enough to slow down the mutation rate, thus bringing an end to what we call the Cambrian Explosion
Early, simple life-forms developed before what is known as the Cambrian era.
The most famous example of this in the history of biology is known as the Cambrian explosion.
The Cambrian is mentioned 50 times in his Meyer's paper, and is his only example of the origin of animal forms.
Common descent would be hard put to recover were anyone to find a cow in Cambrian deposits.
Such an abundance of life occurred in the oceans at the beginning of what is called the Cambrian period.
The only modern phylum with an adequate fossil record to appear after the Cambrian was the phylum Bryozoa, which is not known before the early Ordovician.
The biggest gap, and the one the creationists like best of all, is the one that preceded the so-called Cambrian Explosion.
Then he debunked the Christian claim that most modern species appeared “all at once” during the period known as the Cambrian explosion half a billion years ago hmm, I thought the Lord had dispatched Noah only four thousand years ago.