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cryptozoic

[krip-tuh-zoh-ik] /ˌkrɪp təˈzoʊ ɪk/
adjective
1.
(initial capital letter) Geology. of or pertaining to that part of Precambrian time whose stratigraphic record yields only sparse, primitive fossils.
2.
Zoology. living in concealed or secluded places.
noun
3.
(initial capital letter) Geology. the part of Precambrian time whose stratigraphic record yields only sparse, primitive fossils.
Origin
1890-1895
1890-95; crypto- + zo- + -ic
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for cryptozoic

cryptozoic

/ˌkrɪptəʊˈzəʊɪk/
adjective
1.
(of animals) living in dark places, such as holes, caves, and beneath stones

Cryptozoic

/ˌkrɪptəʊˈzəʊɪk/
adjective
1.
of or relating to that part of geological time represented by rocks in which the evidence of life is slight and the life forms are primitive; pre-Phanerozoic
noun
2.
the Cryptozoic, the Cryptozoic era
See also Precambrian Compare Phanerozoic
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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