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and Howardites "Johnstown"
It was originally retrieved at the scene in 1937 by journalist Harry Kroh
This specimen is a 179-gram fragment of a leaded glass shield window installed in the T Plant (221-T) Plutonium Recovery Building
acquired at auction in 2016
5 billion years
Cruziana Trilobite Tracks - SOLD 5.188" searchsuggestions and Howardites "Johnstown"The Cambrian Explosion brought new life and diversity to the ocean. 521,000,000 years ago, the first trilobites emerged in the fossil record thanks to this evolutionary event. With a tough exoskeleton, trilobites were one of the earliest known arthropods and quickly spread across the planet thanks to their incredible adaptability. This specimen is a 5. 188" trilobite Cruziana track fossil recovered from Morocco's Anti Atlas Mountain Range. Trace
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