Ole Zant
@thebiobob.bsky.social
Scientific illustrator / Paleoartist.
Museum fossil preparator and researcher.
Admirer of theropods and Cretaceous Saharan Africa.
Museum fossil preparator and researcher.
Admirer of theropods and Cretaceous Saharan Africa.
Pinned
Ole Zant
@thebiobob.bsky.social
· Oct 17
Ardetosaurus viator
A reconstruction I made for the recently published dinosaur 🦕
#PaleoArt #SciArt #Dinosaurs #paleontology
A reconstruction I made for the recently published dinosaur 🦕
#PaleoArt #SciArt #Dinosaurs #paleontology
Reposted by Ole Zant
Any paleo folks in the Chicagoland area- this afternoon is our final Open House of 2025 - come see what we’ve been working on at the Fossil Lab, 5437 S. Wabash (just West of UChicago main campus). We’ll continue hosting our monthly Open Houses in the spring of 2026! 🦕🦖
November 13, 2025 at 7:36 PM
Any paleo folks in the Chicagoland area- this afternoon is our final Open House of 2025 - come see what we’ve been working on at the Fossil Lab, 5437 S. Wabash (just West of UChicago main campus). We’ll continue hosting our monthly Open Houses in the spring of 2026! 🦕🦖
Diplodocid bones galore and aplenty at the Oertijdmuseum. Here some photos from a while ago of the construction of Aurora (a composite of two specimens). The skeleton was on display elsewhere for a month and is now being mounted in the Oertijdmuseum. Photos of that coming soon.
November 12, 2025 at 8:31 PM
Diplodocid bones galore and aplenty at the Oertijdmuseum. Here some photos from a while ago of the construction of Aurora (a composite of two specimens). The skeleton was on display elsewhere for a month and is now being mounted in the Oertijdmuseum. Photos of that coming soon.
I realize I never really posted my work on the Triassic phytosaur skull at the Oertijdmuseum on here. So here (and in the posts below) are some photos. I finished it recently when I cleaned more of the mandible.
#FossilFriday #Phytosaur #paleontology
#FossilFriday #Phytosaur #paleontology
October 31, 2025 at 6:27 PM
I realize I never really posted my work on the Triassic phytosaur skull at the Oertijdmuseum on here. So here (and in the posts below) are some photos. I finished it recently when I cleaned more of the mandible.
#FossilFriday #Phytosaur #paleontology
#FossilFriday #Phytosaur #paleontology
Sketched this little guy eating a mammal earlier this year, although I didn't actually know what to call it then.
I guess we do now. Welcome back Nanotyrannus!
I guess we do now. Welcome back Nanotyrannus!
October 31, 2025 at 9:56 AM
Sketched this little guy eating a mammal earlier this year, although I didn't actually know what to call it then.
I guess we do now. Welcome back Nanotyrannus!
I guess we do now. Welcome back Nanotyrannus!
Reposted by Ole Zant
Check out this timelapse I made while giving an Edmontosaurus a pedicure!
One small part of the story out today in Science
www.science.org/doi/10.1126/...
One small part of the story out today in Science
www.science.org/doi/10.1126/...
October 23, 2025 at 9:08 PM
Check out this timelapse I made while giving an Edmontosaurus a pedicure!
One small part of the story out today in Science
www.science.org/doi/10.1126/...
One small part of the story out today in Science
www.science.org/doi/10.1126/...
Two new Edmontosaurus skeletons with preserved skin just got published by Paul Sereno and collegues. They had a fleshy scaly crest over their back and hoofed feet!
I was lucky enough to see the specimens last summer. The publication is open access:
www.science.org/doi/10.1126/...
I was lucky enough to see the specimens last summer. The publication is open access:
www.science.org/doi/10.1126/...
October 23, 2025 at 6:21 PM
Two new Edmontosaurus skeletons with preserved skin just got published by Paul Sereno and collegues. They had a fleshy scaly crest over their back and hoofed feet!
I was lucky enough to see the specimens last summer. The publication is open access:
www.science.org/doi/10.1126/...
I was lucky enough to see the specimens last summer. The publication is open access:
www.science.org/doi/10.1126/...
A new diplodocid skeleton was unveiled today at the Provincial House of the Dutch Province of North Brabant!
It will be on display there for the rest of the month, until it returns to the Oertijdmuseum, which is where we originally prepared the skeleton.
#dinosaurs
It will be on display there for the rest of the month, until it returns to the Oertijdmuseum, which is where we originally prepared the skeleton.
#dinosaurs
October 2, 2025 at 2:49 PM
A new diplodocid skeleton was unveiled today at the Provincial House of the Dutch Province of North Brabant!
It will be on display there for the rest of the month, until it returns to the Oertijdmuseum, which is where we originally prepared the skeleton.
#dinosaurs
It will be on display there for the rest of the month, until it returns to the Oertijdmuseum, which is where we originally prepared the skeleton.
#dinosaurs
I haven't been posting much. But that doesn't mean I haven't been drawing any dinosaurs. 👀
September 29, 2025 at 6:12 PM
I haven't been posting much. But that doesn't mean I haven't been drawing any dinosaurs. 👀
A new giant project on diplodocoids!
When finished, it will provide a look into the anatomy, diversity and phylogeny of these long necked dinosaurs.
They just started a crowd funding campain, so if you want to see this project realized consider donating.
experiment.com/projects/rea...
When finished, it will provide a look into the anatomy, diversity and phylogeny of these long necked dinosaurs.
They just started a crowd funding campain, so if you want to see this project realized consider donating.
experiment.com/projects/rea...
Reassessing the evolutionary family tree and biogeography of the iconic sauropod group Diplodocoidea
We are working on a special open-access volume dedicated to the famed diplodocoid sauropods (like Diplodocus). We aim to publish several papers describing their anatomy, osteology, evolutionary relati...
experiment.com
September 24, 2025 at 5:28 PM
A new giant project on diplodocoids!
When finished, it will provide a look into the anatomy, diversity and phylogeny of these long necked dinosaurs.
They just started a crowd funding campain, so if you want to see this project realized consider donating.
experiment.com/projects/rea...
When finished, it will provide a look into the anatomy, diversity and phylogeny of these long necked dinosaurs.
They just started a crowd funding campain, so if you want to see this project realized consider donating.
experiment.com/projects/rea...
I wrapped up a summer full of dinosaurs at Paul Sereno's Fossil Lab earlier this week. I had the privilege of working with a lot of great minds, on a lot of great projects.
August 31, 2025 at 6:28 PM
I wrapped up a summer full of dinosaurs at Paul Sereno's Fossil Lab earlier this week. I had the privilege of working with a lot of great minds, on a lot of great projects.
Hello #PortfolioDay!
I illustrate extinct animals and their environments.
I illustrate extinct animals and their environments.
April 8, 2025 at 1:25 PM
Hello #PortfolioDay!
I illustrate extinct animals and their environments.
I illustrate extinct animals and their environments.
Presented a poster today on my research on mammals from a new Lancian microsite.
The poster is in Dutch but don't worry, I'm almost done with the paper which will feature significantly more material anyway.
The poster is in Dutch but don't worry, I'm almost done with the paper which will feature significantly more material anyway.
April 5, 2025 at 6:48 PM
Presented a poster today on my research on mammals from a new Lancian microsite.
The poster is in Dutch but don't worry, I'm almost done with the paper which will feature significantly more material anyway.
The poster is in Dutch but don't worry, I'm almost done with the paper which will feature significantly more material anyway.
Solar eclipse at the museum today
March 29, 2025 at 11:33 AM
Solar eclipse at the museum today
Spinosaurus aegyptiacus
An animal difficult to do justice with an illustration.
An animal difficult to do justice with an illustration.
March 2, 2025 at 1:48 PM
Spinosaurus aegyptiacus
An animal difficult to do justice with an illustration.
An animal difficult to do justice with an illustration.
Finally finished my Spinosaurus reconstruction today. Just have to write the thread now. I'll be posting it on sunday. In the meantime, have some titanosaurs.
February 28, 2025 at 11:50 PM
Finally finished my Spinosaurus reconstruction today. Just have to write the thread now. I'll be posting it on sunday. In the meantime, have some titanosaurs.
Reposted by Ole Zant
Prenocephale bust
February 11, 2025 at 8:54 AM
Prenocephale bust
Reposted by Ole Zant
Dois Pycnonemosaurus machos tendo comportamento de marrada para disputas territoriais
January 22, 2025 at 4:14 PM
Dois Pycnonemosaurus machos tendo comportamento de marrada para disputas territoriais
A cast of the new Archaeopteryx specimen that was published yesterday.
It's on display in the Oertijdmuseum in the Netherlands. Our senior curator Jonathan found the specimen in Germany a few years ago.
It's on display in the Oertijdmuseum in the Netherlands. Our senior curator Jonathan found the specimen in Germany a few years ago.
January 4, 2025 at 2:01 PM
A cast of the new Archaeopteryx specimen that was published yesterday.
It's on display in the Oertijdmuseum in the Netherlands. Our senior curator Jonathan found the specimen in Germany a few years ago.
It's on display in the Oertijdmuseum in the Netherlands. Our senior curator Jonathan found the specimen in Germany a few years ago.
Some very exciting projects coming up next year! Once this Spinosaurus reconstrution is done it's back to focusing on writing some papers! Which will of course include illustrations as well, of several dinosaurs and mammals.
December 31, 2024 at 2:58 PM
Some very exciting projects coming up next year! Once this Spinosaurus reconstrution is done it's back to focusing on writing some papers! Which will of course include illustrations as well, of several dinosaurs and mammals.
I am once again drawing plants
December 22, 2024 at 3:25 PM
I am once again drawing plants
December 13, 2024 at 9:24 PM
I've been working with a lot of 3D stuff lately, though I can't share much.
Here's a vertebra from the tail of a large theropod. Look how weird those proportions get near the tip of the tail! Massive prezygapophyses!
#FossilFriday
Here's a vertebra from the tail of a large theropod. Look how weird those proportions get near the tip of the tail! Massive prezygapophyses!
#FossilFriday
November 29, 2024 at 2:17 PM
I've been working with a lot of 3D stuff lately, though I can't share much.
Here's a vertebra from the tail of a large theropod. Look how weird those proportions get near the tip of the tail! Massive prezygapophyses!
#FossilFriday
Here's a vertebra from the tail of a large theropod. Look how weird those proportions get near the tip of the tail! Massive prezygapophyses!
#FossilFriday
Today was not a good day for the native Dimetrodon population.
November 20, 2024 at 4:19 PM
Today was not a good day for the native Dimetrodon population.
A Sarcosuchus sketch I made today, based on a photo I took some years ago.
November 10, 2024 at 4:00 PM
A Sarcosuchus sketch I made today, based on a photo I took some years ago.