Deep Time

Atopodentatus and its messed-up face

Art by Nobu Tamura

With a face that only an egg-laying mother could love (and then immediately leave), Atopodentatus is one of the weirdest reptiles ever to have lived.
Let's just get this right out of the way. Atopodentatus had one messed-up mug. Its upper jaw was split in the middle and lined with small teeth on each side of the gap. If Atopodentatus were a body louse, Cthulhu would be its host.