Fossil Friday: Controversial Gradualism in Tyrannosaurids
anagenesis, Canada, cladogenesis, Darwinian gradualism, Daspletosaurus, Daspletosaurus torosus, Evolution, Fossil Friday, fossil record, Montana, natural selection, paleontology, speciation, splitting, Tarbosaurus, tyrannosaurid, Tyrannosaurus rex, Zhuchengtyrannus
History will tell who is right in this scientific controversy, but personally I am more convinced by the evidence against anagenesis. Source