Paleothyris had sharp teeth and large eyes, meaning that it was likely a nocturnal hunter.

It probably fed on insects and other smaller animals found on the floor of its forest home.

[1] Arjan, Mann, et al. “Carbonodraco Lundi Gen Et Sp.

Nov., the Oldest Parareptile, from Linton, Ohio, and New Insights into the Early Radiation of Reptiles.” Royal Society Open Science, 27 Nov. 2019, royalsocietypublishing.org/doi/10.1098/rsos.191191.

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