Mesozoic mammaliform extinctions prompted therian mammal evolution

Graph displaying how Mesozoic therians were constricted compared to contemporary groups.

https://www.cell.com/current-biology/fulltext/S0960-9822(21)00591-1?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0960982221005911%3Fshowall%3Dtrue

An interesting new study concluding that the extinction of Mesozoic synapsid groups stimulated therian mammal evolution. I covered some of the basic arguments here before, but it’s nice to see that this has finally been compiled into a paper. Strongly recommend.