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Extinct Animal Questions
Topic Started: Nov 26 2013, 10:24 PM (193,443 Views)
Incinerox
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Āeksiot Zaldrīzoti

And like I said, that kind of thick scaled, scuted texture seen in sauropods shows up again in Carnotaurus, with a VAST portion of its left side known, so we must assume that every dinosaur that evolved between the two clades had integument of that kind.
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CyborgIguana
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It's worth noting that feathers can on occasion grow between scales, but even so the type of scales seen in most non-avian dinosaurs seems incompatible with feathers in my opinion.
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stargatedalek
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I'm not slow! That's just my moe!

I never said it was most likely, just not impossible

just a heads up, embryos mean nothing, bird embryos often don't have feathers either until after hatching (some do but not all)
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Yi Qi
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stargatedalek
Nov 16 2014, 03:05 PM
I never said it was most likely, just not impossible

just a heads up, embryos mean nothing, bird embryos often don't have feathers either until after hatching (some do but not all)
but they don't show scales either, sauropod embryo's already have the scales we see in their adults.
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Swimming Spaghetti Monster
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It could be that feathers grew between the scales in dinosaurs after they hatched, as they do on bare skin in birds. If feathers appeared only in coelurosaurs, how to explain the feather gene in crocodiles, then?
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DinoBear
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Long story short: Need 'mo fossils.

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CyborgIguana
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It kind of seems weird to me that the scuted, armour-like scales of Carnotaurus and sauropods would be covered by feathers. Like I said before, they don't really look compatible.
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Myotragus
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The Ectotherm

Seeing as 3D fossils almost never preserve feathers, there's nothing against them in either of those fossils.

And seeing as dinosaur scales are non-overlapping, there's no reason they couldn't go between them.
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CyborgIguana
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No one ever said it was impossible, but it's still probably safer to reconstruct dinosaurs with scale impressions as scaly.
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Ulquiorra
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Why did ammonites become extinct when they were a highly successful group of cephalopods and so common in the prehistoric seas?
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CyborgIguana
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Even highly successful groups can and have become extinct.
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Myotragus
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The Ectotherm

According to Wikipedia:

Quote:
 
The ammonoids as a group continued through several major extinction events, although often only a few species survived. Each time, however, this handful of species diversified into a multitude of forms. Ammonite fossils became less abundant during the latter part of the Mesozoic, with none surviving into the Cenozoic era. The last surviving lineages disappeared, along with the dinosaurs, 65 Mya in the Cretaceous–Paleogene extinction event. The reason why no ammonites survived the extinction event at the end of the Cretaceous, whereas some nautiloids survived, might be due to differences in ontogeny. If their extinction was due to a bolide strike, plankton around the globe could have been severely diminished, thereby dooming ammonite reproduction during its planktonic stage.


But I'll have to look more into this. Enter google scholar!
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Incinerox
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Āeksiot Zaldrīzoti

Myotragus
Nov 16 2014, 08:02 PM
And seeing as dinosaur scales are non-overlapping, there's no reason they couldn't go between them.
This is never seen in nature. This is an extremely risky assumption to make.
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Posted Image Guat
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Incinerox
Nov 17 2014, 12:09 AM
Myotragus
Nov 16 2014, 08:02 PM
And seeing as dinosaur scales are non-overlapping, there's no reason they couldn't go between them.
This is never seen in nature. This is an extremely risky assumption to make.
He meant something like Owls. Owls have feathers growing in between scales IIRC.
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BossAggron
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Formerly Dilophoraptor

Incinerox
Nov 17 2014, 12:09 AM
Myotragus
Nov 16 2014, 08:02 PM
And seeing as dinosaur scales are non-overlapping, there's no reason they couldn't go between them.
This is never seen in nature. This is an extremely risky assumption to make.
Didn't Kulindadromeus have the "Fur" Between the scales or am i just not remembering it correctly.
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