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Viva_La_Revolution

(28,791 posts)
Tue Jul 3, 2012, 12:37 PM Jul 2012

All dinosaurs may have had feathers

Early dinosaurs probably looked a lot more like Big Bird than scientists once suspected. A newly discovered, nearly complete fossilized skeleton hints that all dinosaurs may have sported feathers.

“It suggests that the ancestor of all dinosaurs might have been a feathered animal,” says study author Mark Norell, a paleontologist at the American Museum of Natural History in New York.

Researchers have found feathered dinosaurs before, but this one is more distantly related to birds than any previously discovered. Called Sciurumimus albersdoerferi, it belongs to a group of massive dinosaurs called megalosaurs that had sharp teeth, claws and a heavy-duty frame. The specimen — a youngster that lived about 150 million years ago — is only 70 centimeters long, but it could have grown up to 10 meters, about the length of a school bus.

http://www.sciencenews.org/view/generic/id/341948/description/All__dinosaurs_may_have_had_feathers

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All dinosaurs may have had feathers (Original Post) Viva_La_Revolution Jul 2012 OP
That can't be true. It would have made it impossible for people to ride on them. Ian David Jul 2012 #1
false AlecBGreen Jul 2012 #8
I want one now! n/t Ian David Jul 2012 #9
you want an ostrich? AlecBGreen Jul 2012 #10
Well if they'd had my four cats dipsydoodle Jul 2012 #2
Neat!! :D arcane1 Jul 2012 #3
Going to have to call "BS" on this. Ezlivin Jul 2012 #4
I want to frame this and hang it in my dining room. limpyhobbler Jul 2012 #7
It's a photo Ezlivin Jul 2012 #11
Isn't that the Lennon Sisters? longship Jul 2012 #20
Unfortunately I know some people who would believe this. Can you say low information voter? Auntie Bush Jul 2012 #21
how do you get down off a dragon leftyohiolib Jul 2012 #5
Even Mitch McConnell? LiberalEsto Jul 2012 #6
I'm confused how does a late Jurassic Dinosaur tell you about early dinosaurs? Johonny Jul 2012 #12
It makes it much more likely the common ancestor of this and coelurosaurs had feathers muriel_volestrangler Jul 2012 #13
cool thanks for the link Johonny Jul 2012 #15
You would expect that it is unlikely that feathers developed twice, Curmudgeoness Jul 2012 #17
They were yellow? Neoma Jul 2012 #14
Cool! Shadowflash Jul 2012 #16
Awesome pic, stealing! Odin2005 Jul 2012 #18
Pterosaurs had hair-like structures, too. Odin2005 Jul 2012 #19
If only Rabid_Rabbit Jul 2012 #22

AlecBGreen

(3,874 posts)
10. you want an ostrich?
Tue Jul 3, 2012, 03:24 PM
Jul 2012

i can get you one, cheap, low miles. I know some people... just dont ask too may questions. Oh btw, its sold "as is." No warranties on this baby.

longship

(40,416 posts)
20. Isn't that the Lennon Sisters?
Wed Jul 4, 2012, 03:36 PM
Jul 2012

Nah! Sorry. That's Pat Boone and his two sisters. Horrible toop even in the early 60's.

muriel_volestrangler

(101,306 posts)
13. It makes it much more likely the common ancestor of this and coelurosaurs had feathers
Tue Jul 3, 2012, 07:17 PM
Jul 2012

of some sort, at some stage of their lives. About a month ago, the clade of all descendants from this common ancestor has been termed 'Orionides'.

http://en.wikipedia.org/wiki/Orionides
http://theropoddatabase.blogspot.co.uk/2012/05/amazing-new-tetanurine-paper.html

'All dinosaurs' does seem a stretch; but they're saying it's unlikely feathers developed twice, so it pushes it back to the middle Jurassic most likely, anyway, and it might go further; and raises the possibility that allosaurs had some form of feathers too.

Curmudgeoness

(18,219 posts)
17. You would expect that it is unlikely that feathers developed twice,
Wed Jul 4, 2012, 01:37 PM
Jul 2012

but I just read an article about geckos and their adhesive toepads that may put that in dispute.

Geckos are known for sticky toes that allow them to climb up walls and even hang upside down on ceilings. A new study shows that geckos have gained and lost these unique adhesive structures multiple times over the course of their long evolutionary history in response to habitat changes.


http://www.sciencedaily.com/releases/2012/06/120628131053.htm

I am not entirely sure how they have determined this, but then again, I am not an evolutionary researcher. What this does mean, if it turns out to be true, is that many adaptations may have developed more than once.

Odin2005

(53,521 posts)
19. Pterosaurs had hair-like structures, too.
Wed Jul 4, 2012, 01:48 PM
Jul 2012

Dinosaurs and Pterosaurs are sister groups, so their common ancestor probably had those hair-like structures.

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