Assertion: silverfish's abdomen | /r/CapableOf | extend beyond the apex of the elytra
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Source sentences:
text: The oldest known insect that resembles species of Coleoptera date back to the Lower Permian ( ), though they instead have 13-segmented antennae, elytra with more fully developed venation and more irregular longitudinal ribbing, and an abdomen and ovipositor extending beyond the apex of the elytra.