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cryptozoon

 - 1 dictionary result

Cryp⋅to⋅zo⋅on

[krip-tuh-zoh-on]
–noun
an extinct genus of algae from Precambrian and Cambrian times, forming irregularly hemispherical fossil colonies composed of layers of limy precipitate.

Origin:
1883; < NL; see crypto-, -zoon
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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