1) Princedom 2) Principality 3) Welsh
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1) Welsh 2) Welshman
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https://www.crosswordclues.com/clue/cambrian
The Cambrian (n or n) is the first geological period of the Paleozoic Era, lasting from {Geologic Ages Inline|Cambrian} to {Geologic Ages Inline|Ordovician} million years ago (mya) and is succeeded by the Ordovician. Its subdivisions, and indeed its base, are somewhat in flux. The period was established by Adam Sedgwick, who named it after Cambria...
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http://en.wikipedia.org/wiki/Cambrian
• (a.) Of or pertaining to Cambria or Wales. • (n.) A native of Cambria or Wales. • (n.) The Cambrian formation. • (a.) 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 Diagra...
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http://thinkexist.com/dictionary/meaning/cambrian/
The oldest of the systems into which the Paleozoic stratified rocks are divided.
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The earliest defined geological period spanning 542-483Ma. Time before the Cambrian is referred to as the Pre-Cambrian, making the Cambrian the first period of the Palaeozoic Era. All fossils from this period are marine and the beginning of this period saw the Cambrian Explosion; an apparent burst of evolution. The Cambrian is split into four Epoch...
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http://www.encyclo.co.uk/local/20206
The earliest period of the Paleozoic, thought to have covered the span of time between 543 and 490 million years ago; also, the corresponding system of rocks. It is named after Cambria, the Roman name for Wales, where rocks of this age were first studied.
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Cam'bri·an noun 1. A native of Cambria or Wales.
2. (Geol.) The Cambrian formation.
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http://www.encyclo.co.uk/webster/C/12
Cam'bri·an adjective 1. (Geology) Of or pertaining to Cambria or Wales. 2. (Geol.) 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
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http://www.encyclo.co.uk/webster/C/12
The earliest period of the Palaeozoic era to which systems of rock may be assigned.
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http://www.juniorminers.com/glossary.html
Geologic period that occurred from 570 to 505 million years ago. During this period, invertebrates become common in the oceans and the Burgess Shale was formed.
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http://www.physicalgeography.net/physgeoglos/c.html
The Cambrian period was the third geological period, 450,000,000 years ago.
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http://www.probertencyclopaedia.com/browse/HC.HTM
HMS Cambrian was a British second-class cruiser of 4360 tons launched in 1893. The name Cambrian has been borne by British naval ships since 1797.
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the oldest system of rocks containing fossils; a geological period between 570 and 500 million years ago. See time table.
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http://www.seafriends.org.nz/books/glossary.htm
[
n] - from 500 million to about 544 million years ago
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http://www.webdictionary.co.uk/definition.php?query=Cambrian
the period of geological time between 544 and 505 million years ago. The name comes from the Cambrian Mountains in Wales, where the strata of the Cambrian were first defined. See Geological Timescale
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https://www.encyclo.co.uk/local/20800
Cambrian period noun from 544 million to about 500 million years ago; marine invertebrates
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https://www.encyclo.co.uk/local/20974
The earliest period of the Paleozoic era, spanning the time between 544 and 505 million years ago. It is named after Cambria, the Roman name for Wales, where rocks of this age were first studied.
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https://www.encyclo.co.uk/local/21202
The period of time between 545 and 495 million years ago. Calcium carbonate (CaCO3 ). It forms a large proportion of limestones.
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https://www.encyclo.co.uk/local/23001
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