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The Cephalon (Head Shield): A highly evolved structure featuring sophisticated compound eyes (in most species) with prismatic calcite lenses
Each piece represents one of Earth's most abundant minerals
trilobites are critical index fossils
a classification system that encompasses three distinct types based on mineralogical and chemical characteristics
The Badlands fossil record also includes animals like Subhyracodon
3.9" Thamnopora SP Coral Fossil Coral Reef Devonian Age Verde Valley, Arizona Triceratops The Cephalon (Head Shield): ALocation: Martin Formation, Verde Valley, Arizona, United States Weight: 8. 5 Ounces Dimensions: 3. 9 Inches Long, 3. 1 Inches Wide, 2 Inches Thick Devonian Age 380 Million Years Old The item pictured is the one you will receive. Thamnopora SP Fossil Coral Around 410 million years ago, during the Devonian period, corals re emerged and began building the first large reef systems. These early reefs were bustling underwater communities, primarily formed
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