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Tomozaurus — Tyrannosaurus variants 2015
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#integument #palaeontography #rex #theropoda #tyrannosaurus #tyrannosauridae #tyrannosauroidea
Published: 2015-02-18 05:42:48 +0000 UTC; Views: 13258; Favourites: 198; Downloads: 54
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Description
In recent months an internet friend of mine, SimKoning , has shown to be as familiar with the developmental biology of integument as I am, and someone with whom I can adequately discuss the evolution of integument in archosaurs. A topic of which I am extremely interested.Today he proposed the possibility that within our parameters, it is possible that feathered and unfeathered variants of the same species (perhaps more plausibly of the same genus) existed at the same time, even on the same continent, in different environments. The range of Tyrannosaurus for example, seems to stretch all the way from the hot, dry, Alamosaurus-flattened uplands of southern Laramidia all the way to the far north which was confined to total darkness for large portions of the year.
In regards to this, Sim challenged: "Thinking about this, what I would love to see is a speculative depiction of northern and southern T. rex subspecies, with the former being "wooly" and the latter being scaly.
The scaly sauropod hunter from the south and the grizzly northerner."
I decided to oblige. Call it repayment to Sim for giving me someone to discuss the evo-devo of archosaur integument with.
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Comments: 92
You that you might be right with this particular idea. Check my latest post on skin impression of some Tyrannosaurs that was recently discovered. Now we have one with feathers and it seems to be one with no feathers.
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YES! I knew wasn't too far-fetched. This is why I kept telling all the people I argued with keep an open-mind and do more studying, open up to other speculations and get out of the "Save Face" zone.
I just knew a naked Rex or a T.Rex with little feathers was possible. Thank you, you save me and T.Rex's and I thank you!
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Science always evolve! I love it ! And i like people that can have good discussions about this particular subject without insulting.
I noticed some people who really try to insult. I can give you one example from two weeks ago. Someone posted a good picture about the CGI in J-world and he/she wrote i now realised how much better the look of jurassic park was, and i wrote back and said No if you look closely of the CGI of JP1 it does not look that particulary good but we did not have the quality of FULL HD the power of modern cpu graphics or these awsome new monitors etc, so i think you are wrong.
The reply i got was pretty much like this: I DONT DISCUSS THIS FURTHER WITH YOU, you know nothing, you are probably not even old enough to know they used animatronics in jurassic park one.
I was like what? she/he did not even mention animatronic once in the comment and also insulted my age do i am 29 and actually saw the movie at 1993 when it was released. And i wrote back and said calm down, i did not know you meant animatronics since you did not mention them, but never got a reply. Like why are people so salty? I just wanted to correct he/she with some comparsions of the old and new instead i got blasted. This i dont like with deviant art at all.
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Honestly I would have to disagree on that argument, despite the full HD lacking back in the Jurassic Park and the other two sequels, their CGI was a lot better than Jurassic World's. In my experience watching the movies and such Legendary's CGI is good, but its all lacking a sense of realism, so I can see where she/he is coming from, but chewing you out wasn't right.
And you're not the only one
wdghk.deviantart.com/journal/F…
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I agree in sense of the realism and the movie itself i did not like but take this as comparsion i.imgur.com/CpVlRoH.jpg
I dont like the lighting and the colouration of the new movie it does feel more marvel like, but i mean the cgi of the dinosaurs is night and day tbh , but the old one looks more natural to the eye even do it is actually worse, if you get me, no insulting someone is no the right thing to do!
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Yeah I'm still vouching for the previous JP trilogy. The compositing, lighting effects were I say more dedicated in work. ILM crew also used real backgrounds behind their cgi which presented more activity for the actors and models this being said for some of there stages too (JP3 for example). The problem is that the new JP crew try to cut too many corners, you can see a blur of detail in the old JP movies in JW it is too Hi-Def and not enough detail and actual landscaping for the dinosaurs which is the problem. Like you said the old models are more natural to the opened eye.
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Until the matter is settled (which it may never be) both options are fine to explore.
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we know T. rex had feathers though
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no definitive statements.We don't know yet.
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and we don't know Andrewsarchus had hair
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theres alot we dont know.things will continue to change
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But based on all evidence we have, it had feathers. Unless we find that it magically lost its feathers in a really short amount of evolutionary time, and something tells me that won't happen
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What evidence ? There is only suggestions that it might cause two relatives have it. I think this article sums it up perfectly www.eartharchives.org/articles…
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This article argues for feathered a Feathered tyrannosaurus...
And yes, two relatives did have them, and the bigger of those two relatives, Yutyrannus, lived very close to T. rex on a bigger time scale. Less than whales have had to lose their fur, which they still have not done. Also before you come back with "they need it for whiskers", no, plenty don't make use of their whiskers and have other vestigial hair they should have gotten rid of by now.
There is plenty of reason for good ol' rexy to have some feathers, from display to even keeping warm (hell creek got pretty cold).
Also, it would not get too hot, seeing as there are herbivorous dinosaurs (which would produce even more heat) that are similar in size too T. rex that we are pretty much certain had tons of feathers.
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Who said she rex did not have? I did not. I just said " we know for a fact " t-rex do have feathers. Cause we dont, but latest evidence suggest that it most definitly have feathers. People should be careful using the word " we know" until we actually know.
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Like how we aren't certain non lambeosaur dinosaurs have muscles? Just because we don't have absolute evidence doesn't mean we don't know. We have every reason to think it does and literally zero reason to think it naked, so I feel we can speak in absolutes.
Your wording seemed to suggest to me you were saying we have no reason to think it would at all.
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Absolutely not but you basically said we have evidence without nemtion wich Tyrannosaurinae you meant. People can get misslead by such and think you mean we have evidence on T.rex feather imprints or such.
There is definitly a possibility that T.rex possesed feathers i never claimed anything else i even wrote in my first comment that it might have?, I just corrected you, and it feel you got upset with me cause of that.
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I didn't get upset i enjoy talks like these.
I see what you mean now. If the debate had continued further I would have explained more
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And to be honest it would be foolish to think it was 100% Scaly. Idk what stage of feathers but only time will tell us.
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wouldnt call that short lol
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much shorter than the time whales have had to lose their fur, which they haven't completely done
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thats because they still need them for wiskers
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And Tyrannosaurs wouldn't have a use for their feathers?
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maybe n maybe not.nobody knows
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agentlemanscientist.deviantart…
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I get headache when people post Trey the explainer. Everything he says is common knowledge in the field.
Like i said before there is suggestions and possibility , you used the word evidence wich is actually non existing at its time. Or maybe i did misunderstod you and you meant the evidence of the relatives?
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I apologize, that was a long time ago
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will be long dead be4 anything is fully proven .atleast we got dakota raptor in our lifetime to know the full truth of feathers on large raptors
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Feathered variant for the Paleo-community, Naked variant for the Jurassic Park fanboys.
Everyone is happy
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Also the mottled, vulture-like texture on the head is a really nice touch.
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Ooor perhaps... Subspecies ?!
Why southern variant is bigger ? Warm climate ?
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YES YES YES YES YES! I have been waiting for something like this for a long time!
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I was thinking of having something like this in a fictional "field guide to dinosaurs" I plan on writing. I called the northern subspecies T. rex rex and the southern one T. rex utahensis.
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Huh. So we can have our cake & eat it too. Feathered dinos and scaly ones. Yay!
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In the southern part of its range (Utah to New Mexico), T. rex coexisted with the sauropod Alamosaurus.
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I know this, but I doubt that Tyrannosaurus would prey upon adult Alamosaurus, juveniles though...
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Maybe packs of tyrannosaurs could single out a sick, weak, wounded or exhausted animal... Or maybe bring it down by separating it from the herd, biting its legs, occasionally biting it, and all the while waiting for the animal to collapse from exhaustion.... Although a single animal would probably never dare attack a adult, so they'd probably pick off juveniles from the herd, single out old, dying, sick and wounded adults, and scavenge when a animal dies in the herd
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Yeah, I think that in some situation, Tyrannosaurs may have feed upon Alamosaurs, but given the fact that these Dinosaurs weren't really adapted to kill something way bigger than themselves (or simply slice big chunks of flesh on the living animal, like some Carcharodontosaurid probably did), I don't think it's really possible for them to see the adults Alamosaurs as a regular food source.
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Oh yeah I agree, they'd much rather hunt ceratopsians and hadrosaurs, however packs could've followed and tracked migrating alamosaurs, to feed on stragglers too old, sick, young or weak to fend for themselves, and the carcasses of animals who die of starvation, old age, disease or a injury
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Very creative idea! I never thought about the possibly of one species of tyrannosaurus feathered and the other not.
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While I do like my woolly rexes, this idea is actually really interesting!
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