Has a new study on Psittacosaurus really proven that so-called feathered dinosaurs had both reptile and birdlike skin?
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[__ Science __ ] Did Some “Feathered Dinosaurs” Have “Birdlike Skin”?
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From the link...
"In other words, some parts of this dinosaur had scaly skin like today’s reptiles but the patch with the “feathers” had birdlike skin."
That's how birds are today They just have smaller areas with scales, and larger areas with feathers. Not much new there. Let's go on...
" So is Psittacosaurus a transitional form in the process of evolving feathers? "
This guy is from the Cretaceous. There were feathered dinosaurs long before that, so no. Archaeopteryx, a very avian-looking dinosaur, had fully-developed feathers, even assymetrical flight feathers.
Let's dig a little deeper.
Annu Rev Anim Biosci. 2015; 3: 169–195.
"In other words, some parts of this dinosaur had scaly skin like today’s reptiles but the patch with the “feathers” had birdlike skin."
That's how birds are today They just have smaller areas with scales, and larger areas with feathers. Not much new there. Let's go on...
" So is Psittacosaurus a transitional form in the process of evolving feathers? "
This guy is from the Cretaceous. There were feathered dinosaurs long before that, so no. Archaeopteryx, a very avian-looking dinosaur, had fully-developed feathers, even assymetrical flight feathers.
Let's dig a little deeper.
Annu Rev Anim Biosci. 2015; 3: 169–195.