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Scutellosaurus, Stegosaurus, Ankylosaurus

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By StygimolochSpinifer   |   
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© 2013 - 2020 StygimolochSpinifer
Powerpoint blah blah blah.
Scutellosaurus, Stegosaurus, and Ankylosaurus roughly to scale.
Image size
3416x1569px 1 MB
Comments29
anonymous's avatar
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Dino1998's avatar
Dino1998Hobbyist Filmographer
This actually looks really nice, thank you for the size accuracy
Troyodon's avatar
TroyodonHobbyist Traditional Artist
I think the ankylosaurus would be somewhat smaller than the stegosaurus; at least 20-23 feet long, 5.5 feet at the hips and around 2.5 tonnes, about the size of a rhino.
Evodolka's avatar
EvodolkaHobbyist Traditional Artist
awesome :la:
really like this family and it's cool seeing them compared like this :)
CartoonBen's avatar
CartoonBenStudent Digital Artist
I love the way you colored those dinosaurs. So cool.
Phillip2001's avatar
Phillip2001Hobbyist Traditional Artist
Great work of art !! :D
Asuma17's avatar
Asuma17Hobbyist General Artist
I still wonder which one Scutellosaurus evolved into. From one point it's got the skull shape of a Stegosaur's, but as scutes forming around its body along with the formation of the ankle bone being more in compact and slim along with a tail that seems it could bash it up and down like a Ankylosaur's (even though it didn't have a club).
Ornithopsis's avatar
OrnithopsisHobbyist Traditional Artist
Scutellosaurus might not be, in itself, the direct ancestor of any thyreophorans we know about, but it's definitely a close relative of the common ancestor of thyreophorans. So it may not have evolved into anything that we know of, but it's closely related to something that evolved into both! The traits you see that Scutellosaurus shares with each lineage are ancestral thyreophoran traits that each lineage evolved in a different direction.
Asuma17's avatar
Asuma17Hobbyist General Artist
Yes; it has been speculated several times which species is actually the true common ancestor or even basal member, and the thing is maybe Scutellosaurus was the one who expanded out to evolve into the Ankylosaurus while a close relative probably like Emausaurus expanded out to evolve in the Stegosaurs, much in similarity to how mammals diverged from different species from the same family group.
Ornithopsis's avatar
OrnithopsisHobbyist Traditional Artist
Phylogenetic analysis has shown that Emausaurus is more closely related to both ankylosaurs and stegosaurs than Scutellosaurus is. That means that Scutellosaurus, or a close relative, evolved into Emausaurus and its close relatives. Then Emausaurus or a close relative ultimately evolved into two lineages, one which evolved into stegosaurs and one which evolved into ankylosaurs. 
Asuma17's avatar
Asuma17Hobbyist General Artist
Emausaurus is a basal relative it's not clearly a common ancestor nor the precise animal that diverged into other later dinosaurs in it's family (though I did say it was possible I reword my thoughts). But as I did mention apart from Scelidosaurus it's possible that there could've been another relative.
Imperator-201's avatar
I'm pretty sure Scutellosaurus is the common ancestor for all Thyreophorans, so it technically evolved into both.
Asuma17's avatar
Asuma17Hobbyist General Artist
Nah, I'm too sure of that basically because Euparkeria is the common ancestor to dinosaurs, but it didn't necessarily mean that it evolved into all of the dinosaurs.
Imperator-201's avatar
I mean it's the common ancestor of Thyreophora specifically, not all dinosaurs.
Asuma17's avatar
Asuma17Hobbyist General Artist
Yeah I know what you mean, I'm just giving off an example.
Ornithopsis's avatar
OrnithopsisHobbyist Traditional Artist
Actually, the definition of a common ancestor of a group is something that's an ancestor to all members of that group.

Euparkeria isn't a common ancestor of dinosaurs, though. It's a member of a lineage called Euparkeriidae that is closely related to the most recent common ancestor of crocodiles, pterosaurs, and dinosaurs, but it doesn't have any direct descendants we know of.
Asuma17's avatar
Asuma17Hobbyist General Artist
Well it's one of the common ancestors; I really wasn't putting in means to label it off as the only one as there were different members of the family. And I do know some knowledge of the Euparkeriidae thank you very much.
Ornithopsis's avatar
OrnithopsisHobbyist Traditional Artist
Euparkeria is not particularly closely related to dinosaurs, and in fact animals more similar to dinosaurs such as Asilisaurus lived before it did. This means that Euparkeria is not a direct predecessor to dinosaurs, but its own branch on the tree of life.

Euparkeria is like the "uncle" of dinosaurs, not a direct ancestor.
Asuma17's avatar
Asuma17Hobbyist General Artist
I never mentioned the Euparkeriids being close-relatives to the dinosaurs; I just stated more on them being a close ancestor; and yes though the dinosauriforms did coexist before and during it's appearance, however by the Late Triassic dinosauriforms were coexisting with the dinosaur upstarts even then, that suggestion can still be doubted upon, where as the Euparkeriids had already fallen and possibly were more the ones who likely evolved into dinosaurs.
lythronax-argestes's avatar
lythronax-argestesHobbyist Digital Artist
Perhaps you should realize that the fossil record does not show a linear evolutionary sequence but rather a series of evolutionary endpoints sharing common ancestors.
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earthsdefenders's avatar
earthsdefendersStudent Artist
the stegosaurus looks pretty and the ankylosaurus looks rely cool ^W^
immortalcelsius's avatar
Its a wonderful piece. Stegosaurus was an elegant dinosaur
bigfatcarp93's avatar
Indeed, and this shows that off beautifully. My eyes can barely take the thing in properly.
TeddyBlackBear2040's avatar
TeddyBlackBear2040Student Digital Artist
Nice love the colors and art.
ShinyAquaBlueRibbon's avatar
ShinyAquaBlueRibbonStudent General Artist
I had no idea scutellosaurus was that small. o__o I love all the colors, by the way!
anonymous's avatar
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