Aaron Steele

I’m at the annual paleontology conference. Here’s how people today have described their work:

“I basically study swamp monsters”
“I’m a dinosaur orthodontist”
“Dead bird bird watcher”

#2025SVP

An ink pen drawing of Achelousaurus horneri, a bulky, beaked, and four-legged herbivore with a large head crest and bony pads above its nose and eyes.

Part one of a series on Montana’s ceratopsid dinosaurs. Did you know that Montana has more species of horned dinosaur than any other state?

Their Last Love Token: A Dinosaur Rebuilt From Its Excavated Bones When his wife died, the paleontologist Barry James poured his grief into the reconstruction of a triceratops skeleton that they had started together.

When his wife died, the paleontologist Barry James poured his grief into the reconstruction of a triceratops skeleton that they had started together.

Did ceratopsian (horned) & ankylosaur (armored) dinosaurs walk together? Newly discovered dinosaur tracksite in Dinosaur Provincial Park (Alberta CA) suggests they did, similar to modern multi-species herds. News item includes comments by Yours Truly. 🧪🦖🐾

P.S. Quite a day for cool fossil finds!

Happy #FossilFriday! While the Cretaceous Two Medicine Formation is known for its dinosaur fossils, other organisms including lizards, turtles, fish and crocodilians are also found in its ecosystem. Come learn more about the Two Medicine Formation at the Cretaceous Crossroads exhibit opening!

For #FossilFriday today, Homer the Triceratops, at the Burpee Museum's Paleofest last weekend

Quail-sized feathered dinosaur may be the earliest known bird Archaeopteryx, long considered the earliest fossil bird, could be knocked off its perch by Baminornis zhenghensis, which lived around 150 million years ago and had a short tail like those of modern bi...

www.newscientist.com/article/2468...

I got to see this one for the first time last December. It’s a very impressive mount!

Twitter post screenshot of the San Miguel Sheriff account. 5 years ago they posted about a boulder on the road but referred to it as "Large boulder the size of a small boulder".

Happy 5th "Large boulder the size of a small boulder" anniversary! #Geology ⚒️

Beardless me (I used to only grow a beard while out in the field, and shave it as soon as I got back to civilization) standing in front of a big ol' Triceratops skull sitting on the ground. The brow horns sticking up are nearly as tall as I am!

For #FossilFriday, here's me (~2013) w/ a cast of "Yoshi's Trike" as it was being mounted at
@museumoftherockies.bsky.social

I helped excavate this critter in 2011, and AFAIK it still has the longest brow horns of any Triceratops ever found. Interesting stratigraphic and evolutionary implications

A gray and white oil painting of a Triceratops skull. It directly faces the viewer.

Reposting old art from Twitter.

“Requiem,” an homage to Georgia O’Keefe’s “Cow Skull with Calico Roses” that uses the specimen FMNH 12003 as its subject.

Titan

A gray and white oil painting of a Triceratops skull. It directly faces the viewer.

Reposting old art from Twitter.

“Requiem,” an homage to Georgia O’Keefe’s “Cow Skull with Calico Roses” that uses the specimen FMNH 12003 as its subject.