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Zoe Kulik

@paleozoek.bsky.social

Vertebrate paleobiologist, Gerstner Scholar at the American Museum of Natural History, UW Biology alumn, associate editor @ JVP 🖥️ : https://zoekulik.wixsite.com/paleo I study the evolution of mammalian biology from extinct stem mammal fossils 🦴🩻🪚🔬👀

16 Posts569 Follower223 Folgt
Dr. Jaimi Gray@jaimiagray.bsky.social · last yr.

Every year UTCT teaches NSF sponsored short courses on high-resolution X-ray CT, taught by UTCT staff (including me!). Applications for the 2025 courses are now open! See below for the biological/paleontological course info, & we also have a geological one. If you'd like to apply, send me a DM 🩻☢️🦴

Text that reads: The University of Texas High-Resolution X-ray CT Facility (UTCT) will host a short course on the fundamentals of acquisition, visualization, and analysis of high-resolution X-ray CT (HRXCT) data for biological and paleontological specimens June 2-4, 2025 in Austin, TX. This short course will present an overview of the acquisition, interpretation, 3D visualization and analysis of HRXCT data. This will be followed by hands-on training focused on 3D visualization, surface extraction, and segmentation (e.g., endocasts, digital dissection) including deep learning. Covered programs include ImageJ, Dragonfly, and 3D Slicer/SlicerMorph. This course is sponsored in part by NSF and funds are available to help cover the cost of travel, lodging, and meals. There is no charge to attend. Because we will not be able to accept all applicants, preference will be given to those who have/will have HRXCT data for the course and have a demonstrated need for immediate application of the skills learned. Students and early-career researchers receive priority. Participants are invited to bring their own HRXCT data, or to have specimens scanned (at a significant discount) at UTCT prior to the course.
Zoe Kulik@paleozoek.bsky.social · last yr.

New pub alert! 🚨 and the final installment of papers from my dissertation! Really happy to share this work on Triassic cynodonts that reveals surprising growth differences, helping to reshape our understanding of stem mammal evolution #ThinSectionThursday #Paleontology #Cynodonts #Triassic

Disparate life histories in coeval Triassic cynodonts and their implications for the evolution of mammalian life histories | Paleobiology | Cambridge Core

Disparate life histories in coeval Triassic cynodonts and their implications for the evolution of mammalian life histories

cambridge.org

Zoe Kulik@paleozoek.bsky.social · 2y ago

Why do bone histologists use the middle of bones when examining growth patterns? Because mid-shaft record the longest history of growth, seen in this tiny femur where the joint ends are made of spongy bone and only the middle shows growth marks.

CT scan of fossilized femur with 1 mm scale bar
Greg Wilson Mantilla@gpwilson11.bsky.social · 2y ago

If you don't know about the @burkemuseum.bsky.social DIG Field School, it's a great time to learn about this PD program for K-12 educators and classrooms www.burkemuseum.org/education/ed... Sign up for a Microfossil Workshop by Jan 3! and the DIG Field School applications open soon! #paleo #K12STEM

DIG Field School

The DIG Field School connects K-12 STEM teachers with scientific research and researchers through ongoing professional development and teaching curricula.

burkemuseum.org

Kirstin Brink@kirstinbrink.bsky.social · 2y ago

New paper alert! This was a fun study examining intraskeletal growth patterns in leopard geckos using fluorescent labeling. Labels administered in ovo are still present up to 4 years post-hatching! doi.org/10.1111/joa....

Bone labeling experiments and intraskeletal growth patterns in captive leopard geckos (Eublepharis macularius)

In this study, we used fluorochrome labels in captive leopard geckos (Eublepharis macularius) to track bone growth and intraskeletal variability from embryonic to adult growth stages. Overall, the ti...

doi.org

Will Gearty@willgearty.bsky.social · 2y ago

🚨New Diamond 💎 Open Access Journal in Paleontology 🦴🐚!🚨 Send us your manuscripts 📜 and publish fully open access 🔓 entirely for free! #openacess #paleontology #free #palaeontology #diamond #open

Open Palaeontology@openpalaeo.bsky.social · 2y ago

Hello 👋We are Open Palaeontology, or OPal, a brand new Diamond Open Access journal for palaeontology research. Our mission is to provide a flexible platform for research that is free to authors and readers. Read more in our editorial www.openpalaeo.org/article/view... or at www.openpalaeo.org!

Zoe Kulik@paleozoek.bsky.social · 2y ago

Happy #ThinSectionThursday Here is a side by side comparison of virtual histology from synchrotron tomography on the left and “traditional” histology from optical microscopy on the right. It’s sometimes hard to tell what’s a growth mark in virtual histology but with this, we can can train our 👀

The left image is a grey value CT scan of a fossil bone thin section. The right image is the same fossil bone viewed under cross-polarized light microscopy with brightly colored pink, purple, blue, and yellow colors indicating bone mineral fiber orientations. The inside of the bone’s marrow cavity is infilled with brown crystals that look like a geode.
Zoe Kulik@paleozoek.bsky.social · 2y ago

I’m new to this online paleo community and am looking forward to getting connected. If you’re going to #2024SVP next week, stop by my talk on Wed. at 8am in the mammalian life history evolution symposium for a deep dive into 3D bone histology from some of the earliest non-mammalian synapsids!

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