Ambrox
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ambrox.bsky.social
Ambrox
@ambrox.bsky.social
She/they. A paleontologist who makes paleoart and overshares on the internet. All opinions are my own. My shop: https://ambroxrocks.etsy.com
My kofi: https://ko-fi.com/ambrox
A mischievous archaeopteryx has appeared!
October 13, 2025 at 4:27 AM
Megacerops was a large ungulate from the White River Formation (38-33 million years ago) of the Midwest in the US. They resembled Rhinoceros, but had bony nasal horns that were covered by skin, not a keratin horn!
#paleoart
#fossilart
August 11, 2025 at 7:15 PM
Mega Dragonite
Done in procreate as an unintentional 1hr speed paint
#pokemon #dragonite #megaevolution #pokemonAZ
July 22, 2025 at 9:52 PM
Here are some of the fossil finds from this year’s dig season: the crown jewel being a Tyrannosaurid tooth. Also shown are a Metasequoia cone, a fossil tendon, a crocodilian tooth, and some freshwater ray crushing teeth, plus some amber!
July 21, 2025 at 8:02 PM
My first big bird project is done! I’m excited to show you all this bird that took me so long - at least a few months! This guy comes from the green river formation and is the most common bird found there: Primobucco mcgrewi.
July 18, 2025 at 6:16 PM
Here are the answers to today’s #findthefossil! Some of the suspicious looking bits are actually dead sagebrush leaves. Included in the mix here are turtle bits, various dinosaur chunks, and maybe some crocodilian bone pieces. I’ll try to post some more of these challenges in the future!
July 14, 2025 at 12:56 AM
Here’s a game for y’all!
I have a picture with fossils in a “float” deposit, where they’ve been washed out of the rock and precipitated out in the ground in the hell creek formation! Let’s see how many you can spot! I’ll post the answer in a little bit! Instead of #findthatlizard , #findthatfossil !
July 13, 2025 at 5:48 PM
It’s time for: a creature spotlight!

On the ranch where the crew and I dig every year, there are harvester ants that gather and sort small sediment for their hills! They are known to grab small microfossils (like teeth) and small bits for their hills, including bones!
July 11, 2025 at 4:17 PM
I’m alive!! I had the wildest field session this year, including a brush with a wildfire and some cool wildlife! Stay tuned for photos of the stuff I found on my dinosaur dig this year!
July 9, 2025 at 5:53 PM
Gonna be cleaning some scraggly T. rex bits to sell in my shop at some point. Keep an eye out! Hopefully I can get them listed before I head out on this year’s trip! Unfortunately, these bits aren’t worth salvaging as an entire specimen due to how much weathering had been done to it.
#hellcreek
June 4, 2025 at 3:37 AM
Bothriolepis on the brain
May 12, 2025 at 4:51 AM
A micro texture on a placoderm fish from presumably the red hill deposits in PA. So cool to see these up close!
April 26, 2025 at 5:10 PM
A second bird! Likely a larger waterfowl like presbyornis. Sources from the green river formation.
April 10, 2025 at 6:32 PM
I’m moving! I’ve put up a limited time 20% off sale to help get some stock moving in my €tsy shop! Here’s a brief look at my items:
April 7, 2025 at 6:05 PM
Not every day you see an allosaurus skull rubber banded up for repairs 😂
March 13, 2025 at 5:48 PM
A pachyceohalosaurus I drew while at #paleofest!
It was a blast meeting and seeing so many people I look up to!
This guy is based off the skull model in the Burpee Museum in Jane the Juvenile Rex room!
March 5, 2025 at 2:02 AM
Spherotholus and Kulindadromeus,
Done in inks and marker.
I’m available to do others for commissions!
#paleoart #ink
February 26, 2025 at 4:53 AM
Steamed owlette anyone?
(In all seriousness, I didn’t get the steam up under this gorgeous eastern screech owl. I’ve been correcting the pinnate feathers on this guy)
#museum #taxidermy
February 20, 2025 at 7:27 PM
For an early #fossilfriday, here’s a timelapse of me working on a piece of triceratops frill!
February 14, 2025 at 12:00 AM
It’s time to groom and tidy up a hawk! This guy had paint on his tail feathers! Hopefully a good swabbing and a small amount of steam will help him look like new.
February 8, 2025 at 12:01 AM
Little late for #fossilfriday, but here’s a finished Messelornis leg from the green river formation!

The guy who worked on this previously did me no favors by breaking the femur and tendon remains, hence the bedraggled appearance.
January 25, 2025 at 7:45 PM
For #trilobitetuesday, here’s a fancy lil Morocops from the Devonian of Morocco that is in my collection!
January 14, 2025 at 10:05 PM
*drumroll* it’s a leg, finally!
I’ve finished this little green river bird leg, now onto the counter slab, which looks to have some scant feather preservation 👀
#museum #fossil
January 4, 2025 at 10:31 PM
My first bird piece isn’t exciting to look at, but it’s probably an arm bone overlying where the flight muscles attached, known as the keel, on the chest. Approx. 50 million years old from the green river formation! #fossilfriday #museum
January 4, 2025 at 1:17 AM
Woooo microscope assembly time!!
January 1, 2025 at 7:53 PM