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Sarah Z. Gibson

Sarah Z. Gibson

Paleontologist and Ichthyologist

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Category Archives: Utah

Know thy namesake: the story of Gordon W. Weir and fossil fishes

The fossil fish Hemicalypterus weiri was named after Gordon Weir. But who is Gordon Weir?

Posted bySarah Z. GibsonNovember 8, 2017November 8, 2017Posted infish, fishes, History, UtahTags:America, chinle, fish, fossils, gordon weir, hemicalypterus, pilot, schaeffer, us geological survey, usgs, weir, weiri, WWII1 Comment on Know thy namesake: the story of Gordon W. Weir and fossil fishes

The Man on the Hill: A Geologic Mystery Solved over Breakfast

A historic photo from my hometown opens up a mystery of geologic proportions.

Posted bySarah Z. GibsonAugust 23, 2017November 2, 2017Posted inGeology, History, Utah3 Comments on The Man on the Hill: A Geologic Mystery Solved over Breakfast

New Paper: Evolution of multicuspid teeth in a Triassic fish from Utah

An enigmatic holostean from the Triassic of Utah possesses an unusual tooth morphology. What was the purpose of these teeth?

Posted bySarah Z. GibsonAugust 23, 2017November 2, 2017Posted infishes, morphology, UtahTags:chinle, fossil, hemicalypterus, herbivory, morphology, teeth, triassic, trophic niche specialization1 Comment on New Paper: Evolution of multicuspid teeth in a Triassic fish from Utah

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