Every time Evolutionists have a closer look at fossils (e.g. using modern CT scanning), it usually ends up with another REWRITE of established understanding of evolution …
The acquisition of the mammalian jaw contact was a key moment in mammal evolution …
What these new Brazilian fossils have shown is that different cynodont groups were experimenting with various jaw joint types, and that some features once considered uniquely mammalian evolved (independently) numerous times in other lineages as well …
( Dr. James Rawson, University of Bristol )
full article:
https://www.sci.news/paleontology/brazil-cynodonts-13286.html