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Thomas Hegna

@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.

221 Followers  |  132 Following  |  72 Posts  |  Joined: 22.06.2023  |  2.3446

Latest posts by thomashegna.bsky.social on Bluesky

Okay. 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 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

So 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.

03.06.2025 03:00 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Coming soon: The Trilo-bot 2.0ยฎ

03.06.2025 02:08 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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I bring you the latest advance in lophotrochozoan technology:
The Brachio-botยฎ

03.06.2025 02:07 โ€” ๐Ÿ‘ 6    ๐Ÿ” 1    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 0
Exceptionally preserved ovaries in an ancient horseshoe crab | Geology | GeoScienceWorld

Open access paper: doi.org/10.1130/G533...

30.05.2025 14:44 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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New paper out describing the first fossil ovaries and unfertilized eggs in a primitive horseshoe crab. #paleontology #xiphosura #ordovician

30.05.2025 14:40 โ€” ๐Ÿ‘ 7    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

SUNY Fredonia alum Jasper Glow helped with the assembly. Ishaan Rangnekar and Fiona Rigby helped with the digital cutting.

23.05.2025 21:20 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Purchased the model on sketchfab from the Cleveland Museum. Cut it into 90 printer-sized pieces. Voilร .
โ€ช@hmajewski.bsky.socialโ€ฌ

23.05.2025 21:15 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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So, Tom, how have you been procrastinating the arthropod cuticle preservation paper? Oh, you know . . .
#Devonian #dunkleosteus #3dprinting

23.05.2025 21:12 โ€” ๐Ÿ‘ 16    ๐Ÿ” 4    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 0
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Proper signage is key in an academic building.

23.05.2025 20:10 โ€” ๐Ÿ‘ 4    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
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Our Debate Over Higher Ed Has Lost the Plot (opinion) We need to reorient the national conversation, Lynn Pasquerella writes.

"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...

20.05.2025 15:25 โ€” ๐Ÿ‘ 7    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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a black and white cat is typing on a keyboard with the words " i have no idea what i 'm doing " below it ALT: a black and white cat is typing on a keyboard with the words " i have no idea what i 'm doing " below it
09.05.2025 18:25 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Oops. Forgot the hashtags. #crustacea #paleontology #devonian #clamshrimp

09.05.2025 18:12 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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New paper out! Open Access!
doi.org/10.1017/jpa....

09.05.2025 18:09 โ€” ๐Ÿ‘ 11    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

And the links the student found, while looking superficially plausible if you visit them, have addresses that contain words like 'celebrity cruises'? Do they think we were born yesterday? Does this ever work? 2/2

21.04.2025 15:29 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Academic folks: Our departmental page has a 'links' page. Does anyone else get frequent emails from 'teachers' who have a student who has 'found our links useful' and wants us to add links that the student found? 1/2 . . . .

21.04.2025 15:29 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

I don't even think a modern car would fit through the renovated doorway of Houghton.

17.04.2025 19:15 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

That was fun. Let's do it again some time. Now, if I could only persuade you to look for Pabian's Concavicaris specimens in Lincoln . . .

17.04.2025 18:24 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Consider my training--you can figure out exactly who coined this turn of phrase.

17.04.2025 18:23 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

@peterjwagner3.bsky.social Did you see this?

17.04.2025 18:22 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

For the intrepid: Kobayashi, T. 1942. On the Dolichometopidae. Journal of the Faculty of Science Imperial University of Tokyo. Sec. 2 6: 141-206.

17.04.2025 18:21 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Found it. Kobayashi 1942 put Poliella wasatchensis into Bathyuriscus.
In the same paper, Clavaspidella wasatchensis is moved to Athabaskia.
No genus level synonomies here, just shuffling of species between genera.

17.04.2025 18:21 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

Now, does A. wasatchensis = Poliella or Clavaspidella? That is harder . . .

17.04.2025 18:01 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Confusingly, both Athabaskia and Bathyuriscus are in the same family (Dolichometopidae). Clavaspidella and Poliella are also in that family. That means Kochina wasatchensis is NOT the trilobite you are looking for (plus, the preglabellar field is way to long).

17.04.2025 18:00 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Resser can be used as a verb. I.e., they really ressered up the taxonomy of that group.

17.04.2025 17:43 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Associate professor Thomas Hegna gave a talk titled: "Teaching Critical Thinking on a Flat Earth." His presentation detailed his use of flat Earth myths, in a general education science class, to help students to think more critically.

15.04.2025 23:13 โ€” ๐Ÿ‘ 4    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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At the recent NE-NC GSA conference, Syd Lamberton, a senior at SUNY Fredonia, displayed her poster, titled Looking for Critical Minerals in Carboniferous Clays Beneath Coal Deposits in Pennsylvania: A Multipronged Approach. 1/4
#SUNYFredonia #geology #undergraduateresearch #gsaconnects

15.04.2025 23:00 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Students shine in geological conference State University of New York at Fredonia science students presented research at the spring regional Geological Society of America meeting. The seven students represent the largest cohort of SUNY Fredo...

www.observertoday.com/life/sunday-...

13.04.2025 18:49 โ€” ๐Ÿ‘ 3    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Hey it me! Thanks for being excellent hosts @weinersmith.bsky.social and @danielwhiteson.bsky.social!

๐Ÿงช๐Ÿฆ€๐Ÿฆ‘

03.04.2025 12:59 โ€” ๐Ÿ‘ 43    ๐Ÿ” 7    ๐Ÿ’ฌ 5    ๐Ÿ“Œ 0
ResearchGate | Find and share research Access 160+ million publication pages and connect with 25+ million researchers. Join for free and gain visibility by uploading your research.

The Australasian Palaeontological Memoirs has a new Cambro-Ordovician volume out. Has anyone seen a table of contents? Some pdfs are already on researchgate.net
#cambrian #ordovician #trilobites #paleontology #palaeontology

01.04.2025 23:40 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

@thomashegna is following 20 prominent accounts