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aGentlemanScientist — Feathers vs Scales vs Pycnofibres vs Skin
#pycnofibres #corythosaurus #dilophosaurus #dinosaur #dinosaurs #feathers #paleontology #prehistoric #pterosaurs #spinosaurus #mosasaurus #spinosaurusaegyptiacus #skincovering
Published: 2015-10-03 06:18:46 +0000 UTC; Views: 28120; Favourites: 309; Downloads: 81
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Description
A chart composed of various prehistoric animals with direct evidence of their skin coverings, ranging from Yi qi to Corythosaurus.Important Notes:
-It is debated if Dilophosaurus had feathers due to a possible feather impressions in squatting track fossil in 1997.
-The skin impressions of Attenborosaurus were destroyed in WWII.
-The skin impressions of Estemmenosuchus were recorded by Chudinov in 1965. These skin impressions have not been photographed and have almost no internet presence.
-The tail fluke impression of Platecarpus exists but it does not preserve if it had skin or scales.
Original Image Credit:
Matt Martyniuk
John Conway
www.prehistoric-wildlife.com/
Traheripteryx
Dmitry Bogdanov
Ville Sinkkonen
Nobu Tamura
ArthurWeasley
Sources:
www.ncbi.nlm.nih.gov/pmc/artic…
www.nature.com/nature/journal/…
markwitton-com.blogspot.com/20…
rspb.royalsocietypublishing.or…
www.bioone.org/doi/abs/10.1666…
www.ncbi.nlm.nih.gov/pmc/artic…
www.nature.com/nature/journal/…
Related content
Comments: 174
I haven't read the papers on those pterosaurs in a long time but they looks right from what I recall. I don't think the plesiosaur or icthyosaur show integument type, iirc they are just carbonized skin outlines.
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Ok thank you for your help, and to the best of my knowledge the skin impressions of Attenborosaurus were skin impressions, but unfortunately much of the evidence surrounding them was destroyed in WWII, I was only able to find vague and disjointed abstracts. As with Estemmenosuchus, the info was also very vague and don't give me much of a reference, I guess the Cold War will do that too. I know for a fact my Platecarpus is wrong. I found this on Aegirosaurus, www.bioone.org/doi/abs/10.1666… , you are correct in saying they are not skin impressions they are actually outlines formed from bacterial growth, but they do preserve the skin in very fine detail.
Again thank you so much for your help
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To be honest with you, I'm not happy with the current charts, I'm going to redo them
Also I'm massive fan of your work and I'm honored to see you in my comment section
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Thanks, I appreciate the support.
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A lot of my subscribers believe we have discovered Spinosaurus scales and that spinosaurus was just a giant scaly crocodile when no such evidence exists of scales or any skin impressions for that matter
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And I wanted to include it because the drawing was a gift from my good friend Nic
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Just to show how little we know about it
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man I have to say something I love all the stuff you do here on deviant art and your youtube account , your videos are very informative
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Hi there! I love your youtube videos! There is a lot of really cool information that I didn't already know. I just found out you that you are here on DA!
(BTW: I already know about feathers in Dinosaurs)
Just it's really cool to learn stuff like: Tyrannosaurus' visual acuity was 13 times better than a Human's. I just really enjoy watching your Paleo Profiles and other videos about Paleontology.
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Thank you so much 
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You are most certainly welcome
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Yi's wing membrane is skin, not feathers. It is likely that other Scansoriopterygids possessed similar membranes.
Yi is actually NOT a close relative of ornithomimosauria, Yi qi is closer related to therizinosaurs, oviraptors, and then finally dromaeosaurs and Troodontids than Ornithomimids. Yi qi is more of a distant relative of Ornithomimus.
Yi qi's membranes are most definitely not feathers, it is definitely skin.
The structure of skin on Ornithomimus is definitely not homologous to the wing membranes.
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what the hell did i say, jesus
my apologies for my idiotic attitude from over a year ago :v
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That's ok man XD I came off a bit rude in my response so my bad too
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Yi qi's membranes are most definitely not "modified feathers" and the 2015 Ornithomimus specimen has nothing to do with Yi qi and the web of skin is nothing but skin. None of those structures are homologous to Yi qi.
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Hidden by Commenter
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Nah it's no problem, don't get down on yourself. We all make mistakes and it is completely fine. You aren't stupid
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Cool! Love your channel, too Trey!
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Let me rephrase that question. I knew Cory, Sinosauropteryx, Jeholopterus and Yi Qui had feather/skin impressions. But where did you find out the rest of these animals had feathers/skin fossils? Because I tried to look it up, but I can't find it.
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Well, Spinosaurus does not have any skin impressions (that's why the illustration is black).
The skin impressions of Attenborosaurus were destroyed in WWII, before any photographs could be taken of the fossil (we do have the notes and studies by the scientists though).
The skin impressions of Estemmenosuchus were recorded by Chudinov in 1965. These skin impressions have not been photographed and have almost no internet presence. (Chudinov wrote extensively about the impressions (saying they were gland filled and very mammalian) and was a well respected paleontologist and his notes can be trusted)
Sordes pilosus is an extremely famous case of the discovery of pycnofibres (it actually was the first to be discovered to have them in the 1970s).
It is debated if Dilophosaurus had feathers due to a possible feather impressions in squatting track fossil in 1997 (Traces associated with AC 1/7 were interpreted as feathers by Gierlinski). Their has been no conclusive answer to if the track actually is feathers or cracks in the mud, it could really go either way. But, with more discoveries of feathered dinosaurs, even basal ones like Kulindadromeus, proving feathers are a very primitive trait to all dinosaurs, it wouldn't surprise me if the impressions were feathers.
I already sent you the links concerning Scleromochlus taylori.
Aegirosaurus: www.bioone.org/doi/abs/10.1666…
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Thanks. Shame for the Aegirosaurus and Soredes that they didn't show the actual photos. Maybe most likely because they want them to be kept secret from any fossil poachers.
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The fossils are probably in a museum, hidden from the public, to be further studied before fully released
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Yeah. I remember in the Dino Death Battle on National Geographic, that they often store away old fossils and they were later rediscovered.
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Oh I was only kidding about the "calm down dude" comment
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well Trey we dilophosaurus might just been cracks in the mud it was sitting in... :I
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I know and if you read the description you would have noticed I knowledge that.
Description:
Important Notes:
-It is debated if Dilophosaurus had feathers due to a possible feather impressions in squatting track fossil in 1997.
I clearly state that it is debated. Not certain. It is DEBATED. Some paleontologists say they are feathers, other say they are not. And ever since the discovery of Kulindadromeus, more evidence points to it being feathers.
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jesus trey sorry didnt mean to be rude! D: sorry i'm a big fan of you!
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That's fine. Sorry I sorta lost my temper there, I just got kinda irritated when people ask questions or say statements, I've already answered.
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no it was my fault that i didnt read the description but please promise me one thing... keep making awsome videos!!!
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Its alright man
Thanks for being so understanding and being a fan!
New video coming out soon...
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give me a hint?
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Have you see the trailer for the Good Dinosaur?
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i kinda like the rexes :I
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why is that akward?
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its not awkward... I was just trying to be funny
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ok
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I agree
I love the animation and I love Pixar! The T.rexes look very cool! Inaccurate yes, but Fun and beautiful!
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It would be really nice if Dilophosaurus was indeed covered in feathers, don't know if a aquatic animal like Spinosaurus had feathers but since Grizzly bears and Polar bears are aquatic mammals that still have fur and all aquatic birds still have feathers Spinosaurus might have been covered in water proof feathers
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We have zero skin impressions and/or feather preservations regarding Spinosaurs and Megalosaurs. The whole group Spinosaurus is part of is undetermined at the moment, as of skin covering.
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could it be possible though that Megalosaurs and Spinosaurs were covered in feathers? could it be?
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Ever since the discovery of Kulindadromeus, it has become very unclear. And with zero skin impressions, we can not say for sure.
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oh so it is possible that Megalosaurs and Spinosaurs were covered in fluffy feathers? that is rather nice
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