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San Juan Basin Paleontology Project

@sjbpaleo.bsky.social
78 followers 168 following 12 posts

San Juan Basin Paleontology Project is a basin‑wide research initiative integrating fieldwork, fossil documentation, stratigraphy, and public outreach across the Late Cretaceous formations of the region and beyond.

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San Juan Basin Paleontology Project @sjbpaleo.bsky.social · 03/10/2026
Fossil teeth & microvertebrates are surprisingly scarce in the Menefee Formation, with isolated teeth and small bones rarely preserved. We were thrilled to locate one productive microsite where we can collect sediment and screen-wash to look for tiny specimens that don’t preserve well on the surface
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Reposted by San Juan Basin Paleontology Project
Thomas Cullen @thomascullen.bsky.social · 28/09/2026
With all the news of museums being closed and/or defunded, I feel the message of our paper on the importance of natural history research (and the collections housing those specimens) is just as relevant (or more) today as it was when it was published. onlinelibrary.wiley.com/doi/full/10....
cover page of the linked paper
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San Juan Basin Paleontology Project @sjbpaleo.bsky.social · 28/09/2026
Happy birthday to our co‑director, Brent Adrian — a driving force behind our basin‑wide paleo efforts and a steadfast champion of science. His field leadership, research insights, and enthusiasm for discovery help shape the future of our project. Here’s to another year of discovery!
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San Juan Basin Paleontology Project @sjbpaleo.bsky.social · 21/09/2026
Shout out to our amazing geology team, Zeke O'Callaghan, Ronni Chavez & Madison Baaré, who have been mapping the complex stratigraphic transition b/w the Menefee Fm & overlying Cliff House Sandstone in Tsaya Canyon. They’re presenting our findings at the next Geological Society of America conference
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San Juan Basin Paleontology Project @sjbpaleo.bsky.social · 18/09/2026
🛡️ New microCT scans are giving us our first look inside the armor of the nodosaur Invictarx zephyri! These heavily armored, plant eating dinosaurs roamed the San Juan Basin (and elsewhere in North America) during the Cretaceous.
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San Juan Basin Paleontology Project @sjbpaleo.bsky.social · 16/09/2026
🐢 Memorable moment from our recent field season from a terrestrial locality in the Menefee Formation, another Campanian unit in the San Juan Basin. One of the highlights of the summer was the discovery of a remarkably complete baenid turtle shell preserved in a hard sandstone ledge
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San Juan Basin Paleontology Project @sjbpaleo.bsky.social · 09/09/2026
🦈Highlights from our recent SJB field season this past summer, including explorations of our marine Cliff House "Hills Have Eyes" locality, practically exploding w/marine vertebrates, including chondrichthyans (cartilaginous fishes), actinopterygians (ray-finned fishes) & a few mosasaur specimens
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San Juan Basin Paleontology Project @sjbpaleo.bsky.social · 06/09/2026
🐢San Juan Basin Paleo Project abstracts accepted for #SVP2026! We evaluated the Coniacian-Santonian turtle fauna of the Crevasse Canyon Formation (New Mexico), including evidence for one of the earliest known plastomenid turtles and a reassessment of the baenid turtle "Neurankylus notos"
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San Juan Basin Paleontology Project @sjbpaleo.bsky.social · 05/09/2026
Introducing the San Juan Basin Paleontology Project, a basin‑wide effort to document Late Cretaceous fossils, stratigraphy & landscapes across one of the most complex regions of the Southwest. We’re launching field surveys, specimen work & geological mapping to clarify Cretaceous life & environments
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