Ancient plant-eater with a twisted jaw was a 'living fossil' in its own time https://phys.org/news/2026-03-ancient-eater-jaw-sideways-teeth.html
An aberrant stem tetrapod from the early #Permian of Brazil https://royalsocietypublishing.org/rspb/article/293/2066/20252106/480542/An-aberrant-stem-tetrapod-from-the-early-Permian
"the lower jaw was twisted, so that the teeth pointed out to the sides. The part of its jawbone that, in humans, faces the tongue, in Tanyka is facing up towards the roof of its mouth. This surface is covered in smaller teeth forming a grinding surface like a cheese grater"
