Prepping out a super-hard concretion from between the jugal, quadrate & pterygoid of a huge fossil croc (this is 1 hour sped up), slowly making a dent… speaking of time, later this afternoon on a campus zoom ceremony for staff, I’ll be recognized for my 25 years working @ UChicago 🐊😁

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! 🦕🦖

I can just see from that smile what’s in home iguana’s imagination right now!:

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/...

I’m using a “Chicago pneumatic”, a workhorse engraving pen, not built for fossil prep technically, but widely adopted in the past- though now more options exist from a few companies that are more $$ but built for the purpose. We use a range for different tasks! 🦴

On #fossilfriday cleaning very hard matrix off a tiny portion of a five-foot-long skull of Sarcosuchus…patience, this takes a while! 🐊💀

Any Chicago area paleo folks out there- please feel welcome to come to the University of Chicago Fossil Lab monthly Open House this afternoon from 3:30-5:00 pm and see what we’re working on!
5437 S. Wabash Ave., just West of main campus 🦕🦖

Met this little guy casting a big Mothra shadow on our dog walk after work! #kaiju