Fossil shark teeth discovered in leftover rock that contained SUE the T. rex

January 22, 2019 - General

SUE the T. rex is the most famous fossil from the Hell Creek Formation of South Dakota–the most complete skeleton ever discovered of the world’s most popular dinosaur. When Field Museum scientists removed the rock surrounding SUE’s bones twenty years ago, they kept the leftover sediment (called matrix). For decades, the leftover matrix sat in underground storage at the museum, until scientists and volunteers began meticulously picking…

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Source: archeo

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