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Re: Some questions & feathered Allosaurs?
Ivan Kwan wrote:
But recently I have been contemplating the presence of feathers in some of
the huge coelurosaurs like the tyrannosaurs & therizinosaurs. Maybe the
adults of the large species lost their "dino-fuzz" in maturity, but
retained certain features into adulthood. I recall a somewhat updated Greg
Paul picture in the Scientific American Dinosaurs book that depicted
_Tyrannosaurus bataar_ facing off with a small group of _Therizinosaurus
cheloniformis_ Old picture, but this time the tyrannosaurs had a fringe of
feathers along the lower edge of their arms.
To those of you all with the book, refer to page 33.
Makes me speculate & dream up of all sorts of things; perhaps showing male
tyrannosaurs raising their arms to show a flash of colour during the mating
season? In any case, I've begun restoring my tyrannosaurs with a short &
fuzzy mane along the back of their necks as well as a small caudal fan at
the tips of their tails. (too bad i don't have a scanner...)
This isn't really a new concept, it's been batted about on the list for at
least three or four years, I think. The first person I know of to
consistently restore an adult tyrannosaurid with feathers was Will Svensen,
but I wouldn't be surprised if there were earlier drawings by other artists.
I know that there was an image in _National Geographic_ of a baby
tyrannosaurid with feathers. I've gone through very phases of feathering my
tyrannosaurids, the first with extensive feather coverings, but more
recently I've reduced the about to just on the back of the head, around the
back of the lower jaw, on the very top of the body, on the arms, and on the
tail. I did go through a phase where I restored them with VERY LONG
feathers on their tails sort of erupting upwardly. Very freaky looking.
And with the porcupine-tailed psittacosaur, suddenly feathered
ornithischians don't look so bizarre to me either. Maybe basal ornithopods
like _Hypsilophodon_ had some primitve fuzzy integument, a feature that
maybe newly hatched iguanodonts & hadrosaurs possessed. At the moment
though, the thought of giving my Triceratops a porcupine tail is still too
bizarre to contemplate. (Though you never know what you may find out...)
CMIIW, but the preserved integumentary structures of *Psittacosaurus* sp.
were not feathers, not even in the sense of dino-fuzz. I wouldn't be
surprised if little ornithischians did have dino-fuzz which I do restore
And I just had a horrifying thought... feathered & fuzzy ankylosaurs,
stegosaurs & sauropods??????!!!
I don't think that sauropods would have had feathers. Do the fossilized
embryos show any integumentary preservation? I doubt that
non-maniraptoriforms had feathers, but I wouldn't be surprised by dino-fuzz
at all. I imagine that ankylosaurs and stegosaurs lost their dino-fuzz
earlier in their evolution, but this is all speculation in light of the lack
of integumentary impressions aside from the armor.
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