Die dinosaurs die
Dinosaurs ruled the earth for a period of 134 million years. They appeared in the Triassic, but their pseudosuchian cousins, as well as the remaining therapsids, were the dominant animals across the planet. Dinosaurs did expand into large herbivore niches in the form of sauropodomorphs, but only in the Jurassic did they became the dominant fauna, as their competitors were decimated. Thus, we can outright disprove the notion that dinosaurs were special above all other animal clades, that they too were lucky underdogs rather than a superior race.
Most shockingly, however, is that their reign was not as secure as previously thought. No matter how much we worship dinosaurs, the fact is that, by the late Cretaceous, most of their original diversity was lost. Ornithopods, while represented as the widely successful hadrosaurs, were otherwise represented by thescelosaurid relics and one or two iguanodontish clades, also with only localised success. Sauropods were cosmopolitian, but only the sp