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Extinct Animal Questions
Topic Started: Nov 26 2013, 10:24 PM (193,376 Views)
Urufu
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Incinerox
Aug 6 2015, 11:11 AM
Protofeathers: NON EXISTENT
are you sure about that? there are many Pictures of Ceratopsia with Protofeathers, is'nt Filaments a other Word for Protofeathers? because on the Picture in the Spoiler they say Ceratopsia had them
Spoiler: click to toggle
Edited by Urufu, Aug 6 2015, 11:28 AM.
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Paleop
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Paleopterix

there is no direct evidence of protofeathers on ceratopsids, however these filaments the chart refers to could be the quills or quill like structures found on psittacosaurus.
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Incinerox
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Āeksiot Zaldrīzoti

We have skin impressions of Centrosaurus which was very closely related to Styracosaurus. It had big hexagonal scales arranged in rosettes around larger rounded scales. No filaments at all. For the record, we also have similar skin for Chasmosaurus, which was in the other branch of the ceratopsid family tree. Triceratops was similar but it had these weird projections from the center of each large, round scale (not associated with filaments to our knowledge).

That chart is also bogus in that it assumes we have data on pachycephalosaurids, yet absolutely no mention of hadrosaur skin (of which we have lots of), or no mention of Kulindadromeus which had a fluffy body but an almost plated looking tail, and scaly forearms and lower legs. It also places Coelophysis as a ceratosaur, and it assumes megalosauroids were quilled (which again, we have no data for since Sciurumimus, originally thought to be a megalosauroid, turned out to be a basal member of the coelurosauria, which should have been obvious right from the start).

Really, given the data we have for both centrosaurines and chasmosaurines, the presence of a single row of bristles on Psittacosaurus's tail is of little consequence here.
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Paleop
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Paleopterix

what is the range of likely colors for proto feathers?
as well as scales?
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BossAggron
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Formerly Dilophoraptor

Paleop
Aug 6 2015, 03:04 PM
what is the range of likely colors for proto feathers?
as well as scales?
Protofeathers you'd get mostly the same colours you'd get from Mammal fur, and scales I think can go into most if not all colours.
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Dino Keeper
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The Man Your Man Could Smell Like

Incinerox
Aug 6 2015, 02:26 PM
Really, given the data we have for both centrosaurines and chasmosaurines, the presence of a single row of bristles on Psittacosaurus's tail is of little consequence here.
Maybe I'm misunderstanding your response, but... why then is every ceratopsian portrayed as having quills now?
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CyborgIguana
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The same reason you see a fluffy hadrosaur every now and again: people going overboard with speculation, and flying directly in the face of fossil evidence while doing so.
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Jules
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Mihi est imperare orbi universo

Meh, I refuse to believe Mark Witton can go overboard with speculation.
I mean he wrote an entire post about that on his website.
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CyborgIguana
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If you're talking about his woolly Pachyrhinosaurus, then I'm fully willing to embrace the possibility of that. Why do you think I have it as my avatar?
Edited by CyborgIguana, Aug 6 2015, 06:59 PM.
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Incinerox
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Āeksiot Zaldrīzoti

Dino Keeper
Aug 6 2015, 05:44 PM
Incinerox
Aug 6 2015, 02:26 PM
Really, given the data we have for both centrosaurines and chasmosaurines, the presence of a single row of bristles on Psittacosaurus's tail is of little consequence here.
Maybe I'm misunderstanding your response, but... why then is every ceratopsian portrayed as having quills now?
Because it's a stupid fad. Just like scaly dinosaurs were once upon a time.
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Urufu
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Incinerox
Aug 6 2015, 02:26 PM
We have skin impressions of Centrosaurus which was very closely related to Styracosaurus. It had big hexagonal scales arranged in rosettes around larger rounded scales. No filaments at all. For the record, we also have similar skin for Chasmosaurus, which was in the other branch of the ceratopsid family tree. Triceratops was similar but it had these weird projections from the center of each large, round scale (not associated with filaments to our knowledge).
thanks for this Information I'm trying to use it for my Styracosaurus Albertensis Remake.

Is there a List of Dinosaurs from them we know the Colour, or if the Skin was darker at some Parts of the Body?
Edited by Urufu, Aug 7 2015, 04:01 AM.
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Incinerox
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Āeksiot Zaldrīzoti

Urufu
Aug 7 2015, 04:00 AM
Incinerox
Aug 6 2015, 02:26 PM
We have skin impressions of Centrosaurus which was very closely related to Styracosaurus. It had big hexagonal scales arranged in rosettes around larger rounded scales. No filaments at all. For the record, we also have similar skin for Chasmosaurus, which was in the other branch of the ceratopsid family tree. Triceratops was similar but it had these weird projections from the center of each large, round scale (not associated with filaments to our knowledge).
thanks for this Information I'm trying to use it for my Styracosaurus Albertensis Remake.

Is there a List of Dinosaurs from them we know the Colour, or if the Skin was darker at some Parts of the Body?
For actual colours, list is almost exclusively feathered dinosaurs:

Anchiornis - Carbon black, white wings with black stripes, red mohawk

Sinosauropteryx - Rusty red-brown, countershaded, ringtailed.

Confuciusornis - Possibly similar to a modern zebra finch.

Sinornithosaurus - Reddish-brown, yellow, black and grey spread around its body (I still don't know patterns yet)

Archaeopteryx - Primarily black with pale wings.

Microraptor - Iridescent black.

Inkayacu (extinct penguin) - Gray back, brown belly

Assuming we can determine colour patterns based on scale arrangement, we might have something to work with for hadrosaurs:

Brachylophosaurus - Tail stripes.

Saurolophus angustirostris - Striped.

Saurolophus osborni - Spotted.

Edmontosaurus annectens - An absolute cluster****. Eyestripes, nasal airsac, shoulder spots, arm stripes big patch on the thigh, tail rosettes.

Corythosaurus - Collar stripe.

Gryposaurus - Plain.

Parasaurolophus - Plain.

That's it off the top of my head. I'd take that method with a huge pinch of salt though.
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kepperbob
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- Pure Shardana -

If I'm not wrong we even have proof for beipaosaurus color, right?
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Incinerox
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Āeksiot Zaldrīzoti

I'm not aware of any confirmed results.

But we have the tech, and the fossil quality's good. So that may well be true.
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BossMan, Jake
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Son of God

How can we be sure of the color of the skin/feathers. Or even designs (spots, stripes etc.)
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