The Virtual Petrified Wood Museum. Dedicated to the Exhibition and Educational Study of Permineralized Plant Material
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Precambrian & Cambrian Fossil Gallery
Archaean: 3.8-2.5 Billion Years Ago
Stromatolite Collenia undosa Mesabi Range, Minnesota
Stromatolite (Blue-Green Alage)
Collenia undosa
Archaean 2.6 Billion Years
Mesabi Range, Minnesota

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