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Post by creature386 on Feb 15, 2013 21:20:10 GMT 5
If the mammoth is a good analogy depends on how cold it exactly was, because if Alaska was tundra or taiga like, it won't have to be as thick as the fur of mammoths.
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Post by theropod on Feb 15, 2013 21:41:01 GMT 5
Mammoths where tundra-animals. In fact, which animals did live on an inland ice shield (which certainly didn't exist during the late cretacous, at least not on the northern hemisphere)? None to my knowledge, tundra is the coldest enviroment in which terrestrial animals still exist, along with vegetation.
Mammoths also existed in temperate regions, i think a cool temperate climate would be cold enough for a tyrannosaurus-sized animal to retain functional feathers.
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Post by theropod on Feb 27, 2013 17:33:02 GMT 5
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Post by creature386 on Feb 27, 2013 20:22:42 GMT 5
Thanks a lot for this link!
Seems like scale impressions don't debunk feathers in Sauropods.
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Post by theropod on Jun 13, 2013 1:44:04 GMT 5
Imo we should add a poll to this thread with some options like "all dinosaurs/ornithodirans had feathers" "only coelurosaurs/theropods" etc.
I would honestly be interested in the results.
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Post by creature386 on Jun 13, 2013 1:48:26 GMT 5
I agree.
BTW, I really like that we can change our mind in the polls.
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Fragillimus335
Member
Sauropod fanatic, and dinosaur specialist
Posts: 573
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Post by Fragillimus335 on Jun 13, 2013 23:29:30 GMT 5
Imo we should add a poll to this thread with some options like "all dinosaurs/ornithodirans had feathers" "only coelurosaurs/theropods" etc. I would honestly be interested in the results. I am of the, "Feathers are ancestral to theropoda, but some giant species may have lost them secondarily." opinion. |
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Post by theropod on Jun 14, 2013 0:03:34 GMT 5
feel free to post some suggestions for poll entries, then maybe life can add one!
Such a survey may be of statistic interest.
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Post by creature386 on Jun 14, 2013 1:10:09 GMT 5
My suggestions:
-Dinosaurs had no feathers
-Only coelurosaurs had feathers
-Only theropods had feathers
-Only small dinosaurus had feathers
-All dinosaurs had feathers
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Post by theropod on Jun 14, 2013 16:52:39 GMT 5
I think there are still some people that would pick "only in the animals we found direct fossil proof", but I doubt they are around here (and hope they are not).
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Post by creature386 on Jun 14, 2013 19:07:25 GMT 5
I don't think so. Feathers are evidenced in little dromaeosauidae species, yet (almost) everyone agrees that at least all the small species were feathered.
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Post by Life on Jun 15, 2013 11:21:25 GMT 5
I have added a poll in this thread as per request of several members here.
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Post by creature386 on Jun 15, 2013 13:04:29 GMT 5
I don't think anyone would vote for 3, as I have never seen someone stating this.
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Jun 18, 2013 18:32:50 GMT 5
In my opinion:
Quills -> All of Dinosauria, but very sparse in most
Feathers -> Coelurosauria only, all of coelurosauria is feathered
My reason: Quills have been found in both saurischians and ornithiscians, it's likely that they are spread all over dinosauria. Feathers have only been found in coelurosaurs(Sciurumimus has been put in as a coelurosaur)
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Post by creature386 on Jun 18, 2013 22:01:35 GMT 5
For the last time, he only tends towards believing that.
Also, this has not been published yet, so you can't say it's phylogenic position is changed now.
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