2 <i>Kainops invius</i> specimens: 1 lateral, 1 ventral. Unusually, specimen prepared from below to show the internal surface of the exoskeleton, including hypostome, doublure &amp; apodemes. Cravat Member, Bois d'Arc formation, Lower Devonian (Held.) age. Location: Clarita, Coal Co., Oklahoma, U.S.A.
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