Dr. J. Pardoさんのイラストまとめ

.@dimetrodoc and colleagues report a brand new synapsid from the latest Carboniferous, which seems to fall right at the therapsid-sphenacodontid split. Evidence for ecomorphological diversity and heterodonty originating very early in the mammal linage

https://t.co/1DJY6Y9YF3

Mammalian cusp-and-basin tooth system ("tribosphenic" molars) evolved to take advantage of lateralized jaw function in mammals. Excellent and comprehensive study by @armanafzadeh @AnjanBhullar and others!

https://t.co/f9FKuQ871j