I find feathered dinosaurs and early birds absolutely fascinating! While those examples of 17 million-year old plumage are amazing, it's still pretty young in the history of feathers and flight. We have some amazingly pristine 120 million-year old fossils of
Confuciusornis, the earliest known bird to have a beak. By analyzing the fossils microscopically, we can even be pretty certain that it had a
black body with patches on its wings.
Even more amazing is
Sinosauropteryx, a 125 million-year old feathered dinosaur. The pigments in its feathers were so well fossilized that we can tell that they
were a reddish-ginger color.
Perhaps my favorite bird/dinosaur is the 150 million-year old
Archaeopteryx. Googling isn't turning up any pictures, but one specific specimen that we have is that of a female
Archaeopteryx sitting on her nest full of eggs. Just like modern birds, she has her head folded under her wing as she sleeps.
It always makes me sad thinking of a poor, unsuspecting mother
Archaeopteryx sitting on her nest full of soon-to-be-
Archaeopteryx eggs, one day 150 million years ago, and getting covered in the thick muck that helped preserve her so beautifully for millions of years.
ETA.: Just found
this reconstruction of
Iberomesornis romerali, which lived 125 million-years ago. Next time someone complains about a supposed lack of "transitional fossils," I'm showing them that picture.