Rocko is a Maclurites magnus Gastropoda fossil. It was formed 450 million years in the Crown point limestone in geologic time, during the Ordovician Period, in the area which would become the state of Vermont. Rocko comes to life and explains how he was formed.
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Paul A. Crosby Joined: Mar-08-2019 |
Retired Lieutenant Firefighter, Substitute Teacher, 1st lieutenant Vermont Wing Civil Air Patrol, Blacksmith, member Burlington Gem & Mineral club.
