28 mar 444000000 ano antes da era comum - Graptolite

Descrição:

-sea creatures
-ice age lowered sea level led to the extinction

Source:
https://userpages.umbc.edu/~squire/extinctions.html
http://skywalker.cochise.edu/wellerr/fossil/graptolite/6graptolite1945.JPG

Adicionado na linha do tempo:

26 out 2018

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Fossil/Species Timeline

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