Earliest Double Cusped Teeth With Double Roots

[Scylla]

This 215 m.y. old dentary was only 2 cm long, but it tells a big story in early mammalian evolution.

 

https://phys.org/news/2020-10-tiny-jaw-greenland-complex-teeth.html

[Shellseeker]

Thanks for sharing, Picking up some images off the Internet