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Catastrophes and Lesser Calamities : The Causes of Mass Extinctions
Simon and Schuster
from the famous Alcatraz island
The full list of specimens in the Third Edition collection appears below and you can read more about each of these amazing items on our special page for the Third Edition:
Orthoceras Pendant - SOLD 2.23" metasequoia Catastrophes and Lesser Calamities :Orthoceras was an Ordovician cephalopod with a calcium carbonate shell which provided excellent physical protection against their natural predators. This necklace is a fossilized shell from this animal that has been preserved in great detail. You can even see the individual chambers the nautiloid had in its shell. This pendant is a 2. 23" Orthoceras fossil with a fine sterling silver backing and an 18 inch chain of the same material.
