Hunt for aquatic fossils takes one back to before Utah was

01 Apr

Mississippian Period (ambrotype by Alison Carey)

“The prospect of fossil discovery put an extra spring in his step that day. For some reason, this area is a hot spot for invertebrate fossils — crinoids, bi-valve seashells, and horn coral in particular. We stopped to rest on a large limestone slab and I scanned the vast desert below, wondering what made this desolate mountainside such a popular final resting place for ancient sea creatures.”‘It’s a combination of a few things,’ Mark Milligan told me. He explained that to understand why parts of Utah are so fossil-rich, we must look at ancient geology. Rewind past the great Lake Bonneville, past the formation of the mountain ranges and even the age of the dinosaurs to the Mississippian Period — roughly 350 million years ago — when “here” technically wasn’t here … yet.”

Thanks to Mark Milligan of the Utah Geological Survey. Click here to read the full article.


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