New sauropodomorph dinosaur from the Pebbly Arkose Formation (Upper Triassic: Norian) of Kariba, Zimbabwe" 🧪 🔎 Project on MorphoBank: bit.ly/4g5PoNf 📖 Article in "Journal of systematic Paleontology" bit.ly/4h3Jz3W #fossilfriday #dinosaur #fossil #paleontology @tandfresearch.bsky.social

Proud to share our latest paper in out in Nature today on the origin of #snakes. We present Tametara mirim, an articulated 3D preserved stem snake from the Late Cretaceous of Brazil. Tametara helped us re-tell the story of snake origins in a novel way... www.nature.com/articles/s41...

Exceptional brain and ecological diversity in the earliest snakes - Nature

A well-preserved fossil snake from the Late Cretaceous of Brazil shows early ecological and brain shape disparity in the group.

nature.com

So happy to be back out in Montana! Some great finds already this season including some teeny weeny croc teeth and a very cute baby T. rex premax tooth! But by far the best thing we’ve seen so far is a parade of very cute baby turkeys with their parents #FossilFriday

Happy #FluorescenceFriday! 🔥🧪🔬 A blaze of neural crest cells migrates through a developing quail embryo on one of embryonic development's most epic journeys. Beautifully captured by @vanderspuy.bsky.social 👩‍🔬🐣 #Devbio

An intact human heart, rendered transparent. Because disease doesn't happen in 2D. Whole-organ tissue clearing and light-sheet microscopy reveal coronary vessels (magenta) and atherosclerotic plaques (gold) across the intact organ. More at: shorturl.at/iqTBh 🫀🔬 #FluorescenceFriday!

Found this paper which combines the ideas of non-Euclidean geometry and manifolds, and the macroevolution in phenotype spaces. Truly exciting theoretical read. www.journals.uchicago.edu/doi/full/10.... 🧪 #EvoBio #Paleobio

Excited that the first paper from my dissertation is now out in Royal Society Open Science! @royalsociety.org We used PGLS to investigate the effect of brain size and metabolism on reproductive output across extant amniotes and dinosaurs 🧵 #FossilFriday royalsocietypublishing.org/rsos/article...

Alligator embryology on deck! @stephlechki.bsky.social @lnwilson.bsky.social @griffinlabpaleo.bsky.social

This review was inspired by my recently started Turtle Origins Research Group @smnstuttgart.bsky.social and @unihohenheim.bsky.social funded by a @dfg.de Emmy Noether Grant, which will deal more with this subject. So much more to come! For now, please enjoy: www.tandfonline.com/doi/full/10....

Getting to the root of it: perspectives on the phylogenetic origins of modern reptiles

Reptiles are currently represented by turtles, archosaurs (crocodylians and birds), and lepidosaurs (lizards, snakes and the tuatara). However, these groups represent only a fraction of the known d...

tandfonline.com

New in @science.org ...since our first discoveries of early tetrapods, they have been thought of as "amphibians" characterized by aquatic larvae. But is this true? For the first time, we report exceptional fossils of stem tetrapod babies that upend this paradigm. 1/n www.science.org/doi/10.1126/...

Direct development of stem tetrapods across the fin-to-limb transition

Modern amphibians are characterized by an aquatic larval stage that ends abruptly with a period of widespread tissue remodeling (metamorphosis) upon transition to terrestrial adulthood. A transient la...

science.org

The secret's out – thrilled to share I’ve been selected as a member of the inaugural class of @sciam.bsky.social's Young American Scientists! It's been so fun to learn about the work of the other 27 awardees from around the country. www.scientificamerican.com/issue/sa/202...

Spent last week at the European Synchrotron @esrf.fr, collecting non-destructive, high-res histological data from Triassic reptile bones from across N America and Africa. This tech is a game-changer for studying growth + development in fossils

Ever wondered what impact climate may have had on dinosaur body size? Us too! 🧵 Check out our new paper that tries to answer just that—out today in Palaeontology! @thepalass.bsky.social onlinelibrary.wiley.com/doi/full/10....

Body size evolution through shifting climatic conditions in Mesozoic dinosaurs

Body size evolution is commonly associated with climate change. For example, birds and mammals have been found to decrease in size with anthropogenic global warming. Recent studies have inferred dist...

onlinelibrary.wiley.com

The concise history of modeling character evolution. Handy timeline. academic.oup.com/sysbio/advan... 🧪 #EvoBio #Paleobio

Exciting work here—rapid, non-destructive high resolution bone histology with synchrotron scanning! www.sciencedirect.com/science/arti...

Synchrotron imaging reveals diversity in archosauromorph growth strategies by the end of the early Triassic

Archosauromorphs are a diverse clade of vertebrates that originated in the Early Triassic and persist today as crown birds (ornithodirans) and crocodi…

sciencedirect.com

Our paper on turtle origins is finally out in Current Biology, with two major implications for our understanding of reptile evolution 🐢 #Paleontology #Turtles #Evolution www.cell.com/current-biol...

A new paper is out from our group in @commsearth.nature.com that reconstructs the history of oxygen loss in the oceans around the end-Triassic mass extinction (ETME). The ETME is one of of the "Big 5" mass extinction that occurred in the Earth in the past half billion years (1/5). ⚒️🧪

Last day of joint Princeton-Yale-UTokyo fieldwork in the Triassic of Texas! Two large jackets, hundreds of fossils, and over a metric ton of sediment for screenwashing. Can’t wait to come back

Day 7 of expedition in the Triassic site of TX (Princeton University and UTokyo joint expedition). Enjoyed prospect and painful cactus🌵

Got the jacket (phytosaur skull) capped before getting rained out!

Spent Saturday in the museum collections at Texas Tech, thank you to curator Jeff Martz for being such an obliging host

A phytosaur skull and lots of sediment from vertebrate microsites to screenwash—successful fieldwork so far!

PL retweet. Developmental Biology Course (Quintay). More information: biodesarrollo.unab.cl

Day2 of expedition in TX A lot of stuffs and variety of cute lizards

Great to be back in the field! The Triassic of Texas

Our publication, led by Meredith Taylor, is officially out in print. Thank you to @anatrecord.bsky.social for selecting my #artㅤㅤㅤㅤ for the cover of the June issue! The image depicts cleared & stained specimens of an embryonic #chicken (left) and #emu (right).

New paper! We conducted a preliminary histological survey of the vertebrates from the Late Triassic Pebbly Arkose Formation of Zimbabwe. This assemblage (230 Ma) contains the oldest-known definitive dinosaurs from Africa! doi.org/10.1111/joa....

Excited to dig into this, and thrilled to find some of our bird embryonic work featured here!

Steve Brusatte@stevebrusatte.bsky.social · 3mo ago

The day has finally come. The Story of Birds is published in the USA and Canada today!!

Reptile eggs come in all shapes and sizes. Here are two bird extremes in the @griffinlabpaleo.bsky.social right now: bobwhite quail and ostrich eggs. Most gecko species also make hard-shelled eggs and are tiny by comparison, like these Hemidactylus and Sphaerodactylus eggs. #BirdEvoDevo#GeckoEvoDevo

Excited to have this out!

Chase Brownstein@chasedbrownstein.bsky.social · 4mo ago

1/10 🚨🚨🚨 New paper on dinosaur evolution! Chris Griffin and I look at why we can't seem to figure out how the major groups are related! It might be a hint about how dinosaurs came to be! Photo: Anchisaurus @yalepeabodymuseum royalsocietypublishing.org/rspb/article...