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Duotone panel — violet briefing on the left, lime-sealed detail sheet on the right.
and Xenotrypidae (Ordovician-Silurian)
” corals appeared for the first time
similar to modern cephalopods
and serve as important markers of early marine ecosystems
and ecology of ancient cephalopods
1.9" Thamnopora SP Coral Fossil Coral Reef Devonian Age Verde Valley, Arizona Saw Fish Tooth and Xenotrypidae (Ordovician-Silurian)Location: Martin Formation, Verde Valley, Arizona, United States Weight: 1. 5 Ounces Dimensions: 1. 9 Inches Long, 1. 7 Inches Wide, 1. 7 Inches Thick Devonian Age 380 Million Years Old The item pictured is the one you will receive. Thamnopora SP Fossil Coral Corals made a comeback during the Devonian period, about 410 million years ago, forming the first large reef systems in Earths history. These reefs were built primarily by stromatoporoids (reef