Matt Dempsey @Sketchy_raptor Twitter profile

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Matt Dempsey

1 year

My first PhD paper is out in ProcB! I'm excited that this whopper of a first chapter made it to the finish line, and I'm really proud of what we've done. I may post a more detailed breakdown of interesting findings later, but a quick summary below:

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Matt Dempsey

@Sketchy_raptor

11 months

エピネシス

@epinesis

11 months

フィンランドのヘルシンキ自然史博物館に展示されているサカバンバスピスの模型があまりに情けない姿をしていると話題に。博物館を訪れた1人は｢こいつを見つけて泣きそうになった｣とコメントしています。サカバンバスピスは両目が正面にあり、口は常に開いたままになっていて泳ぎが下手だったそう。

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Matt Dempsey

@Sketchy_raptor

4 months

A message to fellow scientists - please do not under any circumstance use generative AI images as "illustrations" to promote research. The relationship between scientists & artists is historically long standing and mutually beneficial. Don't set a precedence by trampling on it.

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Matt Dempsey

@Sketchy_raptor

3 years

While we can ensure its structural integrity, employees are still reminded not to walk *too* close to the glass.

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Matt Dempsey

@Sketchy_raptor

2 years

The Meaty 🥩🍖

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Matt Dempsey

@Sketchy_raptor

3 years

Here's my muscle anatomy study of Tyrannosaurus! Comitting to actually finishing this one turned me into a bit of a T. wreck... 🍖🦖

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Matt Dempsey

@Sketchy_raptor

4 years

Stegosaurus Muscular Anatomy

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Matt Dempsey

@Sketchy_raptor

3 years

The *other* super-popular Upper Cretaceous North American dinosaur. I've been wanting to do an updated Triceratops muscle study since before I started the T. rex, so I'm happy to finally share this! 🥩🦴

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Matt Dempsey

@Sketchy_raptor

2 years

Boom.

RJ Palmer

@arvalis

2 years

@Sketchy_raptor now make it a pile of bones on the floor

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Matt Dempsey

@Sketchy_raptor

6 months

Matt at age 6, age 16, and age 26.

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Matt Dempsey

@Sketchy_raptor

4 years

A simulation outtake from my masters (mid-2019). Tenontosaurus go woooo!

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Matt Dempsey

@Sketchy_raptor

3 years

My muscle study of Deinonychus, the quintessential dromaeosaurid... Velociraptor who? This entry in the series is definitely pushing into the realm of bird-like anatomy, but it's not *quite* there. Non-avian theropods really are a strange mishmash of features. 🍗🍗

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Matt Dempsey

@Sketchy_raptor

10 months

Gorgosaurus isn't small, T. rex is just stupid big.

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Matt Dempsey

@Sketchy_raptor

3 years

Confirmed longboi. Diplodocus and its closest relatives are my favourite sauropods. I think that they have a very cool shape, so picking Diplodocus for my first sauropod muscle study felt like the clear choice. 🦕🍖

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Matt Dempsey

@Sketchy_raptor

2 years

The most fun part of setting up a rig:

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Matt Dempsey

@Sketchy_raptor

4 years

I've been looking forward to sharing this on a #FossilFriday for a while. This is my reconstruction of the deep and superficial musculature of Triceratops. I like to think of this as a dissection guide for an animal that no anatomist will ever get to dissect. #PaleoArt #Dinosaurs

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Matt Dempsey

@Sketchy_raptor

1 year

A leg - but whose?

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Matt Dempsey

@Sketchy_raptor

2 years

Stegosaurus, just casually doing its thing.

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Matt Dempsey

@Sketchy_raptor

3 years

🚨There has been a breach in the East corridor 🚨

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Matt Dempsey

@Sketchy_raptor

1 year

Hopefully the video doesn't get too compressed, but here's a layer-by-layer look at Hatcher the Triceratops, built atop reposed scans of the mounted skeleton made available by the Smithsonian DPO. 🦴🥩🍗

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Matt Dempsey

@Sketchy_raptor

7 days

💀

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Matt Dempsey

@Sketchy_raptor

7 months

Some quick notes on ceratopsid frill holes:

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Matt Dempsey

@Sketchy_raptor

2 years

Sometimes you just wanna

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Matt Dempsey

@Sketchy_raptor

3 years

This moment from The Lost World is the single best cut in any movie ever and I'm not even joking. Whoever came up with this is a genius.

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Matt Dempsey

@Sketchy_raptor

2 years

Stegosaurus turntable - what if dinosaur, but cube?

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Matt Dempsey

@Sketchy_raptor

1 year

A compilation of recent downtime scribbles

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Matt Dempsey

@Sketchy_raptor

1 year

This piece is about a year and a half old now. It's still one of my favourites, but I'm tempted to give it another shot. I've gotten a lot better at drawing both people and T. rex since making it.

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Matt Dempsey

@Sketchy_raptor

3 years

Big Monties🥩

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Matt Dempsey

@Sketchy_raptor

2 years

'Tis done.

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Matt Dempsey

@Sketchy_raptor

9 months

This is the 4th T. rex I've modelled like this, and I think my best. In addition to general experience, a ton of bird dissection work this year helped pushed this to a point I'm very happy with. Built muscle-by-muscle around my skeleton model, and meant for artist reference use!

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Matt Dempsey

@Sketchy_raptor

2 years

Hypsilophodon, just a lil' dude.

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Matt Dempsey

@Sketchy_raptor

3 years

My muscle study of Tenontosaurus! With another ornithischian due and the last theropod in the series being Deinonychus, it felt like the clear choice. It may not have the celebrity status of previous entries, but it's a personal favourite. There's a *lot* of meat in that tail. 🥩

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Matt Dempsey

@Sketchy_raptor

2 years

The Legend.

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Matt Dempsey

@Sketchy_raptor

3 months

Homology! Given their shared ancestry, crocodylians and birds share many of the same muscle groups - but they are arranged and shaped quite differently. 🍗

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Matt Dempsey

@Sketchy_raptor

10 months

Not a perfect recreation - but I think I got pretty close, right?

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Matt Dempsey

@Sketchy_raptor

13 days

Dilophosaurus - weirder than you might expect!

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Matt Dempsey

@Sketchy_raptor

3 years

Oh, it's #PortfolioDay again? Among other things here and there, I mainly illustrate anatomical reference diagrams of dinosaurs.

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Matt Dempsey

@Sketchy_raptor

3 years

#SciArtTweetStorm , you say? I make reconstructions of the anatomy of extinct animals, mostly dinosaurs. 🦖🦴🥩

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Matt Dempsey

@Sketchy_raptor

2 years

🍗

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Matt Dempsey

@Sketchy_raptor

2 years

Restful slumber has eluded me this evening, so I sketched a fairly quick Iguanodon muscle profile. Ah, yes... "relaxation".

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Matt Dempsey

@Sketchy_raptor

11 months

My Triceratops muscle model, built around my edits to the Smithsonian skeleton, has received some subtle shape tweaking to tidy up a few things that were bugging me. I've also rendered it out in a style equivalent to my recent skeletons. A labelled version will arrive eventually!

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Matt Dempsey

@Sketchy_raptor

3 years

Steggy says hey.

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Matt Dempsey

@Sketchy_raptor

5 months

Hey, I sculpted another 3D skeleton. This time it's Allosaurus jimmadseni (the cooler Allosaurus species). A generalised representation as usual with my models, but scaled to and taking heavy cues from Big Al 2. When you're used to Tyrannosaurids, Allosaurus feels so... dainty.

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Matt Dempsey

@Sketchy_raptor

9 months

Triceratops 3D muscles repost to milk engagement. Each muscle was individually sculpted around my edits to the Smithsonian composite skeleton, intended to be used as reference! ...please don't attempt to milk a Triceratops.

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Matt Dempsey

@Sketchy_raptor

2 years

Can't sleep, sculpt dinosaur.

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Matt Dempsey

@Sketchy_raptor

1 year

Protoceratops is a real cursed little gremlin. Pretty much the front end of a quadruped stitched to the rear end of a biped. I love this dumb lil goober, but it's a frustrating animal to study.

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Matt Dempsey

@Sketchy_raptor

2 years

Orntihischians rule.

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Matt Dempsey

@Sketchy_raptor

10 months

🍗🍗🍗🍗🍗

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Matt Dempsey

@Sketchy_raptor

4 years

This might seem like an exaggeration, but if the largest partial specimens are anything to go by, Edmontosaurus could get really, REALLY big.

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Matt Dempsey

@Sketchy_raptor

3 years

:D

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Matt Dempsey

@Sketchy_raptor

9 months

That dinosaur that you might have heard of?

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Matt Dempsey

@Sketchy_raptor

1 year

Invisible giant holding T. rex like a reluctant cat

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Matt Dempsey

@Sketchy_raptor

2 years

Over the last 12 months I think that I've comfortably settled on a "look" for the way I depict T. rex.

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Matt Dempsey

@Sketchy_raptor

10 months

T. rex is the ultimate animal and all of the hype is warranted.

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Matt Dempsey

@Sketchy_raptor

3 years

A Tyrannosaurus on tour.

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Matt Dempsey

@Sketchy_raptor

2 years

Jurassic World is the hot topic of the day, so perhaps it's a good time to repost this very Jurassic Park inspired drawing I did last summer:

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Matt Dempsey

@Sketchy_raptor

6 months

Pop culture Tyrannosaurus rex that slap, either because of their design, the general vibes of their portrayal, or because I said so.

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Matt Dempsey

@Sketchy_raptor

3 years

Stegosaurus stenops skeletals, the holotype (USNM 4934, top) and Sophie (NHMUK PV R36730, bottom). Between them we have a mostly complete picture of S. stenops, but the holotype is a little bit mashed and jumbled, and it took the description of Sophie to work out what was what.

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Matt Dempsey

@Sketchy_raptor

1 year

Late night speen scribble

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Matt Dempsey

@Sketchy_raptor

3 years

Its #DinosaurDay , you say? Have some dinosaurs without their skin to celebrate! 🦕🦖🥩🍗 Is that a weird way of putting it? I mean, it's not wrong.

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Matt Dempsey

@Sketchy_raptor

1 year

Hatcher now has all of his muscles back! Turntable video with layer removals sometime during the week, probably, maybe.

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Matt Dempsey

@Sketchy_raptor

10 months

Get you a man who can

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Matt Dempsey

@Sketchy_raptor

2 years

Starting to get extra gnarly.

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Matt Dempsey

@Sketchy_raptor

1 year

Continuing, layer by layer.

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Matt Dempsey

@Sketchy_raptor

2 years

Some ceratopsians, just vibing.

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Matt Dempsey

@Sketchy_raptor

3 years

🦖🦴🏃‍♀️

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Matt Dempsey

@Sketchy_raptor

2 years

I think many home releases of Jurassic Park do a disservice to the effects, especially the 2011 blu-ray, which was very washed out. Looking at scans of a 1993 35mm print, everything feels more tangible, imo. The high contrast of the shadows feels better, and hides potential jank.

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Matt Dempsey

@Sketchy_raptor

1 year

This guy right here is probably the best looking dinosaur in the show we've seen so far.

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Matt Dempsey

@Sketchy_raptor

4 years

Baby tyrannosaur anatomy: now with colour and labels!

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Matt Dempsey

@Sketchy_raptor

10 months

gains

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Matt Dempsey

@Sketchy_raptor

3 years

Today is a good day!

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Matt Dempsey

@Sketchy_raptor

10 months

Hey all - if you're currently in the business of needing accurate, high-fidelity skeletal illustrations for research, display, or any other purposes, then I'm currently in the business of taking commissions. Doesn't neccessarily have to be dinosaurs! DM me if interested.

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Matt Dempsey

@Sketchy_raptor

2 years

The Boys.

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Matt Dempsey

@Sketchy_raptor

3 years

Morrison Maws

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Matt Dempsey

@Sketchy_raptor

1 year

Reposting this Stegosaurus for the umpteenth time because it's still my favourite dinosaur that I've drawn.

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Matt Dempsey

@Sketchy_raptor

3 years

Protoceratops is a little ankle biter.

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Matt Dempsey

@Sketchy_raptor

5 months

Tarbosaurus is often depicted with a substantially narrower snout than good ol' T. rex. However, there are Tarbosaurus skulls with broad, T. rex-like snouts, or at least broader snouts than the generalised skull drawings you sometimes see. Figures from Hurum & Sabbath, 2003.

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Matt Dempsey

@Sketchy_raptor

2 years

Quick evening sketches - some scrungly theropods

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Matt Dempsey

@Sketchy_raptor

11 months

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Matt Dempsey

@Sketchy_raptor

2 years

Pending some tidying, the headsculpt of my Jurassic Park T. rex recreation is more or less done.

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Matt Dempsey

@Sketchy_raptor

1 year

Building and rigging this T. rex skeleton bone-by-bone a few months ago was probably the most fun I've had with a creative endeavour in a very long time. And it's certainly not something I'm entirely done with. 🦴🦖

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Matt Dempsey

@Sketchy_raptor

3 years

H O N K

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Matt Dempsey

@Sketchy_raptor

4 years

Paleoart food for thought: Note how the definitions of several moving muscles are discernable even despite the thick skin, particularly at the shoulders, thighs and inguinal regions. Yet, this gator isn't "shrink-wrapped". Muscles influence the form of every overlying tissue.

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Matt Dempsey

@Sketchy_raptor

1 year

WIP thing

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Matt Dempsey

@Sketchy_raptor

2 years

I'm never drawing another dinosaur ever again. 🍍

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Matt Dempsey

@Sketchy_raptor

2 years

My study taxa/specimens, all together! I think it looks pretty cool to see them like this.

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Matt Dempsey

@Sketchy_raptor

2 years

20 years apart - seems old habits die hard!

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Matt Dempsey

@Sketchy_raptor

2 years

Ayup, this'n's a long'n.

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Matt Dempsey

@Sketchy_raptor

1 year

ThreeeeeDeeeeeee dinosaur anatomy reference sheet type things from the last couple of years.

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Matt Dempsey

@Sketchy_raptor

2 years

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Matt Dempsey

@Sketchy_raptor

1 year

At the start of this year, I sculpted the complete myology of Brachylophosaurus (which is my favourite hadrosaur) atop my skeletal reconstruction, but didn't 100% finish rendering it out in the multi-view orhtographic style that I usually present my muscle diagrams.

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Matt Dempsey

@Sketchy_raptor

1 year

You may have seen the 360 turnaround video that I made of my Triceratops muscle model, but I also slapped this image together in case anyone wanted a static reference sheet. This one has dorso-ventral views, too!

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Matt Dempsey

@Sketchy_raptor

2 years

An early test of the neck rig, too:

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Matt Dempsey

@Sketchy_raptor

7 months

I still really like this one from a few years ago. I'd like to do a remake of it at some point - I think I've gotten better at drawing both people and T. rex since then.

Malek | FREE PALASTINE 🇵🇸

@Malek53382013

7 months

YOU! PALEOARTIST! Show me your art of dinosaurs and people coexisting. (Can be any other prehistoric animal. Can be mounts, pets, an animals that farmers like having around because it helps the ecosystem, or the more realistic dinosaurs hunting humans in spec evo)

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Matt Dempsey

@Sketchy_raptor

3 years

RIP Papo Spinosaurus... ⚰️

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Matt Dempsey

@Sketchy_raptor

4 years

Recently for a hobby project (more on this soon), I've been taking a detailed look at the appearance of Jurassic Park's T. rex. This led to a quick aside where I sketched out what the skeleton may look like. It's neat to see where it does and doesn't deviate from the real animal.