What is the meaning of proterozoic aeon?

noun

  • From 2, 500 to 544 million years ago; bacteria and fungi; primitive multicellular organisms.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). proterozoic aeon. Retrieved September 21, 2026, from http://smartdefine.org/proterozoic_aeon/definitions/1329560
ChicagoWordNet. 2010. "proterozoic aeon" http://smartdefine.org/proterozoic_aeon/definitions/1329560 (accessed September 21, 2026).
HarvardWordNet 2010, proterozoic aeon, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/proterozoic_aeon/definitions/1329560>.
MLAWordNet. "proterozoic aeon" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/proterozoic_aeon/definitions/1329560>