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A common, macroscopic, wood-boring trace fossil occurs in the Upper Cretaceous braided- and meandering-stream deposits of the upper and capping sandstone members of the Wahweap Formation in Grand Staircase-Escalante National Monument, Utah. Upon detailed examination, this trace warrants assignment to Asthenopodichnium (Thenius, 1979). Asthenopodichnium is a scoop-shaped, pouch-like trace that is preserved...
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