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FredtheDinosaurman β Different Allosaurus Species
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Published: 2013-02-04 01:42:26 +0000 UTC; Views: 27830; Favourites: 370; Downloads: 0
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THE NEW AND IMPROVED VERSION!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Β ΒThis is a sheet I did to show to people that there are different species and there for different looks and faces of Allosaurus. You can't say that I'm making shit up b/c I traced the skulls of of pictures (left) onto the paper then put flesh on the bones AND NOW IN COLOR!!!!! I know this isn't 100% from scratch but I truly believe this is the most accurate way to draw extinct animals.
It's been two years since I put the original Image up, it was pencil, black n' white, bits of the heads were cut off, no color designs, just plane old piece of sketch paper.
2-3 years later and IT LOOKS FUCKING EPIC!!!!!!!!!!!!!
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Comments: 56
awesome work
i wonder if any of these Allosaurus actually met in life (unlikely i know but still) that would be pretty cool to think
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Still somewhat on the fence when it comes to saurophaganax being of it's own genus or not
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Just some comments, there's no cranial material of Saurophaganax so that skull is fiction, also the San Diego and DR skulls seem to be different casts of the same skull, DINO 2560.
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Allosaurus is my favorite dinosaur. Mostly because I loved watching the walking with dinosaurs big al special
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I am sure each individual; like us and other animals,Β have different features. And I think maybe due to fossilizationΒ and the stress from the changes in the Earth's surface and ground, maybe the fossils get worn and disfigured a bit. Β
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Maybe all dinosaurs looked different just like people.Β
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I'm going to go on a limb and say that your favorite dinosaur is allosaurus
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In your reconstructions you seem to be missing pretty much all muscles on the back of the lower jaw. During life the contours wouldn't directly follow the shape of the skull. There should be muscles there.
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Yup, but just like your Allosaurus drawing, this is an OLD piece, which is also the reason why the holes in the skull show too.
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Alright, fair enough.
And besides those jaw muscles. They're pretty nice.
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Just because they look different they are not different species. I'd say that at least a large majority of these were A.fragilis.
Great artwork though
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Β I really love the multiple concepts and designs of the allosaurs. i've allways see the allosaur as a wolf of the jurassic era, and you nailed it.
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The last one is Jimmadseni Just a heads up. Beautiful work!
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This is pretty damn accurate and I must say I love it!
Actually the Allosaurus on the third panel is not A. jimmadseni, but A.europaenus.
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an interesting thing I noted about the Allosaurus fragilis, there are two skull morphs. the san diego allosaur, and national museum allosaur have upward facing crests. Whilst the DR allo skull has smaller backwards facing crests. My theory is that the upward crested allosaurus are male A. fragilis and backward facing is female
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quick change since the san diego skll is an atrox then the pattern only applies to the DR and washington specimens.
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My favorite Dino too! 
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Thanks man
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Btw is that how it's spelled: Fraglils?
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wow! i never noticed that the skulls were different shapes like that! great job of fleshifying them!! XD awesome!
(fleshifying?is that even a word!?!?)XD watever
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Thank you
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does each allosaur have a different last name (like one might be allosaurus fragilimus and the other allosaurus rex XD) or are they all said to be the same species?
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Different species, except there's more than one fragilis here. The point was showing how different the skulls are regardless of being a different species.
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Oh okay, thats pretty cool.
were they found in different parts of utah (I think thats where they're found, after all its the state fossil XD) Because perhaps the skulls are different based on where they were found, kinda like darwins finches XD
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Beautiful color patterns on the Allosaurs and it is interesting to see the variations of the skulls.
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You're welcomeΒ Β
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You do know you used the Fragile Different Lizard three times, right?
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Yeeeeesss...And the title of the Image says "Allosaurus SKULL Comparison" and there are multiple species of Allosaurus in the image, right?
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But you used one same species three times.
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I know that...I typed it myself. What's your point? I show you 6 DIFFERENT Allosaurus skulls and I can't repeat the same species?
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BTW cool restoration. Lots of individual character in each face. I want to do something like this for various sauropods groups once I get enough skull data.
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The San Diego skull is actually a cast of Allosaurus atrox (the same case is used at New York's AMNH). Some scientists lump it into A. fragilis, but it's got much smaller horns and ridges and it lived a few million years later. A. fragilis is very rare, most Allosaurus specimens appear to be A. atrox.
I suspect A. fragilis may have been the ancestor of both A. atrox and A. jimmadensi..... just a guess at this point but they both have longer nostril cavities than the more basal A. fragilis. And A. jimmadensi at least retains the large horns and nasal ridges of its possible ancestor, whereas A. atrox reduced the horns and has almost no nasal ridges.
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Actually A. Jimadseni lived about 6 million years before A. fragilis, and 3 million years before A. Atrox. A. Fragilis was the most advanced species of Allosaurus, unless you consider Saurophaganax and Epanterias to be Allosaurus species. So the large nasal cavities and horny crests were actually appearing as the Allosaurus evolved.Β
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You got that kind of backwards, A. jimmadseni is the oldest, from the saltwash member of the Morrison formation, next is A. fragilis (holotype +USNM4734 from the same quarry) which was found in the lower part of the brushy basin member then follows A. "atrox"Β (sensu Paul, 1988) which found at the middle of the brushy basin member, present in Cleveland Lloyd, Como Bluff, Dry Mesa and other contemporaneous localities. At last we have Saurophaganax and Epanterias which were found in the very top of both the brushy basin member and the Morrison formation as a wole.
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You're welcome!
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Allosaurus maximus is my favorite allosaur.
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Mine too, A. Amplexux & A. Maximus because of their dominating size. >
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