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About Digital Art / Hobbyist MattMartMale/United States Recent Activity
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Stegosaurus Comparison by MattMart
Stegosaurus Comparison
A comparison of three different Stegosaurus specimens. Top is the holotype of S. ungulatus, currently mounted at the Yale Peabody Museum. Middle is the holotype of Stegosaurus stenops, previously on display at the Smithsonian (and presumably which will be back after the current ongoing renovations to the dinosaur halls). Bottom is "Sophie", the Stegosaurus stenops specimen now on display at the British Museum.

I put these together for this blog post (dinogoss.blogspot.com/2015/02/…) mainly to explore the differences between Stegosaurus species, which are often overlooked in popular restorations in favor of a "generic" stegosaur, and to explore plausible ranges of motion inspired by the online debate over the stegosaurs in Jurassic World sweeping their tails along the ground. Note that both species would have had real trouble even touching their tail tips to the ground from a standing position.

Some differences to notice: S. stenops has much larger plates (both in proportion to its size and in absolute terms) than S. ungulatus, though note that many of the hip plates, which are largest in S. stenops, are unknown in S. ungulatus. Another big difference is the arrangement and shapes of the tail plates. Where S. syenops has alternating, large, rounded plates on the tail, S. ungulatus has paired (as indicated by two pairs of minor-image plates unlike any others on the back or in S. stenops specimens) tail plates which were small, narrow, and spine-shaped. Also note the longer legs in S. ungulatus.

S. ungulatus was traditionally depicted with eight tail spikes. This is generally considered wrong today, but the specimen was found with eight spikes, and so far there is no evidence of any other duplicated bones indicating multiple specimens. Proponents of the 4-spike hypothesis suggest duplicate bones may not have been collected and might be present if the site were re-opened, which would be the only way of definitively saying whether or not S. ungulatus had eight spikes.
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Velociraptor Revisited WIP by MattMart
Velociraptor Revisited WIP
An updated version of my most widely-shared illustration ever: commons.wikimedia.org/wiki/Fil…

This drawing is over 10 years old now and has been reposted on countless web sites and news articles talking about how Velociraptor looked very different from the way it is shown in the Jurassic Park series. So when I needed a Velociraptor for an upcoming project, I figured it would be a good opportunity to create a new version based closely on the old one.
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:icondotb18:
DOTB18 Featured By Owner Jul 20, 2016
I'm in need of your assistance. Your book, A Field Guide to Mesozoic Birds and Other Winged Dinosaurs, it states that Microraptor zhaoianus is found in both the Yixian and Jiufotang formations. Yet virtually all other sources say it's exclusively Jiufotang. So what's going on here? Is this a case of Science Marches On or are there Yixian Microraptors hiding in a museum somewhere?
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:iconmattmart:
MattMart Featured By Owner Jul 20, 2016  Hobbyist Digital Artist
Good question! Turner 2012's paper on paravian systematics lists Microraptor as coming from both the Yixian and the Jiufotang. That's why it was included as such in my book. I had assumed further specimens from the Yixian were found and were among the ones discussed in Turner's paper. However, so far there doesn't seem to have been any more on this, and Turner does not cite any particular Yixian specimens. A few people have asked me about this and now that I think about it, I have a hunch Turner might have been including the Yixian specimen now known as Changyuraptor. Just a hunch, but it's possible. So far no other specific fossil currently assigned to Microraptor have been published as specifically hailing from the Yixian.
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:icondotb18:
DOTB18 Featured By Owner Jul 20, 2016
Thank you so much for clearing that up.
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:icondraco-datura:
draco-datura Featured By Owner Jun 21, 2016
Amazing art! :)
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:icond3in0nychu5:
d3in0nychu5 Featured By Owner Apr 7, 2016  Hobbyist Traditional Artist
Haven't seen many updates here or on your blog in a while. Hope you're doing well. Is the new book still coming along?
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:iconmattmart:
MattMart Featured By Owner Apr 16, 2016  Hobbyist Digital Artist
Yes, doing well, thanks! My real job and other things have been keeping me pretty busy. Most of what I've been working on is for the new book(s) so I haven't been posting much online, but I'm plugging away at it! I'm hoping to have one new book ready by the end off this year, but that might be over-ambitious...
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:icongavingavin123:
gavingavin123 Featured By Owner Dec 30, 2015  Student Traditional Artist
Just picked up a copy of A Field Guide to Mesozoic Birds from the holidays, and I love it! Amazing work.
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:iconmattmart:
MattMart Featured By Owner Jan 2, 2016  Hobbyist Digital Artist
Thanks, glad you like the book! :D
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:iconplastospleen:
PLASTOSPLEEN Featured By Owner Apr 2, 2016
I quite like it too.
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:iconterizinosaurus:
Terizinosaurus Featured By Owner Aug 21, 2015
Nice !!! :)
I like Stegoceras !!! :love:



I am your  Watcher !!! :D :D :D
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