mar 27, 490000000 BC - Crinoid

Description:

-a fossil called Echmatocrinus, from the famous Burgess Shale fossil site in British Columbia may be the earliest crinoid.

Source:
https://samnoblemuseum.ou.edu/wp-content/uploads/2017/08/mod-Crinoid.jpg
http://www.kgs.ku.edu/Extension/fossils/crinoid.html

Added to timeline:

26 Oct 2018

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