This could actually be true since modern birds are descendants of dinosaurs
>>3785855You gonna make the paleospergs seethe
>>3785855Low quality bait
>>3785855The square cube law and the needs of thermoregulation in large endotherms would flip shit on a creature with a meter+of insulative integument.
>>3785862no this thread will get 300 replies
>>3785958beautiful eyes t b h
>>3786012We have Sciuromimus, Dilong and, more importantly, Yutyrannus as proof that tyrannosauroids were phylogenetically primarily feathered. If tyrannosaurids/eutyrannosaurs had no homologous to feather filaments then they lost them secondarily due to gigantothermy.
>>3788040Possible, but until we can find evidence of feathers in even small NA tyrranosaurs, it's arguably better evidence that the current Chinese-tyrannosauroid-centric evolutionary tree for the North American Tyrranosaurs might be invalid.
>>3786012>>3788040PS: we also have evidence for quill nobs as basally as Coelophysis, which is almost as basal as it gets for confident theropod placement standards (anything more basal than that tends to constantly swift between theropod, sauropodomorph, herrerasaur and non-dinosaur all the time, especially now that consensus tends to finally favour the Ornithoscelida hypothesis).
>>3788050>it's arguably better evidence that the current Chinese-tyrannosauroid-centric evolutionary tree for the North American Tyrranosaurs might be invalidThat's highly unlikely though given that tyrannosauroid sister taxa are constantly interchangable between NA and EA of late Cretaceous. Zhuchengtyrannus and Tarbosaurus are more closely related to T-rex than all other North American eutyrannosaurs were, alioramins were Asian and persistently found to be closer to tyrannosaurines than the American albertosaurines were, and the Mongolian Timurlengia/Alectrosaurus/Xiongguanlong-grade tyrannosauroids are often found in a position betweens the American Dryptosaurus and Appalachiosaurus.Not trying to say this means that derived late cretaceous tyrannosauroids were feathered, just that the geographic distinction between current continents doesn't mean shit for the late Cretaceous.