Burgess Shale

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Burgess Shale

a bed of Cambrian sedimentary rock in the Rocky Mountains in British Columbia containing many unique invertebrate fossils
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

Burgess Shale

[¦bər·jəs ′shāl]
(geology)
A fossil deposit in the Canadian Rockies, British Columbia, consisting of a diverse fauna that accumulated in a clay and silt sequence during the Cambrian.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Traditionally, one of the most contentious aspects for scientists studying Burgess Shale fossils has been trying to understand their affinities with modern-day animals.
THE ROM HOLDS THE LARGEST COLLECTION OF BURGESS SHALE FOSSILS IN THE WORLD, estimated at around 150,000 specimens.
The origins of modern diversity: deciphering clues from the Burgess Shale to understand early life

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