Apparently, pterosaurs had branching feathers as well, not just dinofluff.
https://www.nbcnews.com/science/science-news/feathers-evolve-pterosaur-fossil-offers-hints-rcna24569
Why did feathers evolve? A pterosaur fossil offers new hints.
In a study published Wednesday in the journal Nature, McNamara, Godefroit and their colleagues report that this pterosaur possessed two types of feathers, including branched feathers similar to those of modern birds.
I wouldn’t quite call them similar, the branches all lie parallel to the main shaft rather than perpendicular as in birds. These could have evolved independently.
Feathers are useful for carrying water back to nestlings.
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On a different topic. I’d been wondering last week if there were any dinosaurs that lived in burrows.
Yes. According to the TV program on Antarctic dinosaurs.
Australia’s very own Leaellynasaurus from Dinosaur cove was found near fossilised burrows of a size that would fit a Leaellynasaurus in neatly.
