Abstract

A silicified fauna from the early Permian Coyote Butte Limestone within the Grindstone terrane of central Oregon contains a diverse fauna including five polyplacophorans, one rostroconch, and one problematic taxa. New taxa include Gryphochiton planoplata new species, Arcochiton soccus new species, Homeochiton triangularis new genus and species, Arceodomus sphairikos new species, and Diadeloplax apiculatus new species.

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