What is the definition of Cambrian period? | Dictionary.net

CAMBRIAN PERIOD

\kˈambɹi͡ən pˈi͡əɹɪəd], \kˈambɹi‍ən pˈi‍əɹɪəd], \k_ˈa_m_b_ɹ_iə_n p_ˈiə_ɹ_ɪ__ə_d]\

Definitions of CAMBRIAN PERIOD

2011 - English Dictionary Database
2006 - WordNet 3.0

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from 500 million to about 544 million years ago; marine invertebrates

2011 - English Dictionary Database
By DataStellar Co., Ltd

from 544 million to about 500 million years ago; marine invertebrates

2006 - WordNet 3.0
By Princeton University

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