What is the meaning of ordovician period?

noun

  • From 500 million to 425 million years ago; conodonts and ostracods and algae and seaweeds.
WordNet 3.0 © 2006 by Princeton University
15
 
|15 years ago|465 views|share |citing 
APAWordNet. (2010). Ordovician period. Retrieved September 25, 2026, from http://smartdefine.org/ordovician_period/definitions/1299280
ChicagoWordNet. 2010. "Ordovician period" http://smartdefine.org/ordovician_period/definitions/1299280 (accessed September 25, 2026).
HarvardWordNet 2010, Ordovician period, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/ordovician_period/definitions/1299280>.
MLAWordNet. "Ordovician period" 23 October 2010. Web. 25 September 2026. <http://smartdefine.org/ordovician_period/definitions/1299280>