@thomashegna.bsky.social
Arthropod paleontologist, father, science educator in western New York. Teaches paleontology, Earth history, stratigraphy, and more at SUNY Fredonia. University of Iowa and Yale G&G alum. WIU refugee.
Tomorrow!
06.10.2025 18:47 — 👍 9 🔁 2 💬 1 📌 0MAGNETITE! Well, probably. They are magnetic, and too tiny to see any other features . . .
02.10.2025 17:33 — 👍 0 🔁 0 💬 0 📌 0Little known fact about the glacial sediment near Lake Erie in our area. Sometimes, you can see a swath of this sediment in the swash zone of the beach—the waves sort them differently because they are denser than the other sediment. #sunyfredonia #geology #lakeerie #sedimentology #glacialsediment
02.10.2025 17:30 — 👍 2 🔁 1 💬 1 📌 0Our Dunk is nearing completion. It now has a stand! #paleontology #geology #Devonian #sunyfredonia #3dprinting
30.09.2025 00:33 — 👍 17 🔁 1 💬 0 📌 0The water level of lake Erie is at a point where we can reach parts of Point Gratiot that I have never been able to visit. So, I took some students on an impromptu field trip this afternoon to see the Kellwasser event exposed at the Lake Erie Beach. #sunyfredonia #geology #paleontology #devonian
29.09.2025 23:57 — 👍 2 🔁 0 💬 0 📌 0More pictures from measuring stratigraphy with Dr. Hegna's class out at the Sheridan Bay Park. Included is some meta-photography with SUNY Fredonia's Roger Coda (marketing and communications). #geology #stratigraphy #fredonia #lakeerie #sunyfredonia
27.09.2025 20:00 — 👍 3 🔁 1 💬 0 📌 0Another 3d printed skull to guess. It is harder than it looks.
15.09.2025 22:19 — 👍 4 🔁 1 💬 0 📌 0I did not know juliid snails had a coelacanth-like history. Do you happen to know the publication history that sorted that out? Does anyone know what their hinge is like?
10.09.2025 19:19 — 👍 0 🔁 0 💬 1 📌 0Since we have only known each other a finite amount of time, this is high praise! For this, I think I owe you some fossil fish papers . . .
10.09.2025 19:16 — 👍 2 🔁 0 💬 1 📌 0Guess who!
10.09.2025 19:14 — 👍 2 🔁 1 💬 0 📌 0A beautiful day to measure the Hanover Shale. Found a crinoid-filled lens amongst the layers. #Fredonia #geology #stratigraphy
08.09.2025 23:52 — 👍 6 🔁 1 💬 0 📌 0Another way we spent our summer vacation: www.fredonia.edu/news/article...
#fredonia #geology
I don't think I am exaggerating when I say this is the fastest brachiopod ever. Introducing the Brachio-Bot. #fredonia #paleontology #3dprinting
01.09.2025 17:58 — 👍 9 🔁 2 💬 0 📌 0The Trilo-bot is now fully operational!
26.08.2025 16:48 — 👍 34 🔁 9 💬 2 📌 2Guess who? Printed at about 1/2 scale.
21.08.2025 20:16 — 👍 1 🔁 0 💬 0 📌 0Okay. So Lingula would probably win against any rudist, as long as it managed to kick itself in the right direction with its pedicle.
03.06.2025 15:48 — 👍 1 🔁 0 💬 0 📌 0So the remote control will be able to control it. Without the wheels, the remote is useless.
It's a little toddler RC car. This brach will not win any races. Just like every other brachiopod that ever was.
Coming soon: The Trilo-bot 2.0®
03.06.2025 02:08 — 👍 4 🔁 0 💬 0 📌 0I bring you the latest advance in lophotrochozoan technology:
The Brachio-bot®
Open access paper: doi.org/10.1130/G533...
30.05.2025 14:44 — 👍 0 🔁 0 💬 0 📌 0New paper out describing the first fossil ovaries and unfertilized eggs in a primitive horseshoe crab. #paleontology #xiphosura #ordovician
30.05.2025 14:40 — 👍 8 🔁 3 💬 1 📌 0SUNY Fredonia alum Jasper Glow helped with the assembly. Ishaan Rangnekar and Fiona Rigby helped with the digital cutting.
23.05.2025 21:20 — 👍 1 🔁 0 💬 0 📌 0Purchased the model on sketchfab from the Cleveland Museum. Cut it into 90 printer-sized pieces. Voilà.
@hmajewski.bsky.social
So, Tom, how have you been procrastinating the arthropod cuticle preservation paper? Oh, you know . . .
#Devonian #dunkleosteus #3dprinting
Proper signage is key in an academic building.
23.05.2025 20:10 — 👍 6 🔁 1 💬 0 📌 1"A successful college education is measured not by what its graduates believe but by what they can conceive." Important piece by Lynn Pasquerella on @aacu.org's Call for Constructive Engagement statement and higher ed leaders' response to the present crisis.
www.insidehighered.com/opinion/view...
Oops. Forgot the hashtags. #crustacea #paleontology #devonian #clamshrimp
09.05.2025 18:12 — 👍 2 🔁 0 💬 1 📌 0New paper out! Open Access!
doi.org/10.1017/jpa....