(1/8) For #FossilFriday – What can ~555-million-year-old fossils tell us about the earliest animal behaviors? Excited to share a new article with Blakely Webb, @chemosymbiosis.bsky.social, Bill Parker & @marydroser.bsky.social in Scientific Reports investigating evidence of motility in Spriggina

🚨NEW STUDY DROP🚨 New toothed whale named, Pterocetus diamantinae, based on partial skull from a massive active multi-million-year-old whale fall necropolis on the bottom of the Indian ocean. ~500 fossil whales, 5 extant communities. 🎨: @joschuaknuppe.bsky.social (P. benguelae pictured)

🚨NEW STUDY DROP🚨 New eucrocopodan archosauriform is named, Silescelida acristata, based on a handful of fossils from Middle Triassic Brazil. It could be a possible relative to the well-known Euparkeria, but alas it's just bits and pieces. 🎨: Matheus Fernandes Gadelha

🚨NEW STUDY DROP🚨 Large paracrocodylomorph pseudosuchian is described as, Shakajlura riojanensis, from a partial specimen from the Tarjadia Assemblage Zone, upper Ladinian-lower Carnian, Chañares Formation, La Rioja, Argentina. 🎨: @literallymiguel.bsky.social + rlatkdwls

🚨NEW STUDY DROP🚨 Maxilla of Portuguese hatchling Allosaurus is described with telltale acid etching left on the surface of the bone. Authors interpret this to mean the bone was digested shortly before fossilization began. Cannibalism? Impossible to tell. 🎨: Tim Bradley

🚨NEW STUDY DROP🚨 Brazilian archosaurs are analyzed for osteological correlates for lip-like tissues in the same way researchers have done for theropod dinosaurs. They found that nearly all of them fit the lipped condition more than a croc-like condition 🎨: Matheus F. Gadelha

🚨NEW STUDY DROP🚨 New material of the species Elasmotherium chaprovicum is described from Early Pleistocene-aged Taurida Cave, Crimea.

🚨NEW STUDY DROP🚨 New poposauroid from the marine Carnian-aged Partnach Formation near Jadersdorf, Gailtal Alps, Austria is named, Carinthiasuchus kandutschi, based on some skull pieces, osteoderms, and tail vertebrae. 🎨: LiterallyMiguel

I uploaded a new video about the discovery of Spinosaurus mirabilis. My original video had a lot of interviews with the scientists who found it, so this one is a bit of an edit. Follow the link down thread! #Spinosaurus #SpinoSummer #SpuinoSummer2026 #dinosaur #science

A brand new microraptorine has been named from some shoulder and arm bones. I delve into the latest paper, so you don't have to! Video down thread (Art by Lewis LaRosa) #dinosaur #paleontology #nature #science

🚨NEW STUDY DROP🚨 New microraptorine is named Jian changmaensis based on an arm and a shoulder from Lower Cretaceous Xiagou fm of the Changma Basin, Gansu, China. 🎨: @lewislarosa.bsky.social

🚨NEW STUDY DROP🚨 A new specimen of the Middle Triassic Ichthyosaur, Besanosaurus, has been described with an in-utero fetus revealed through X-ray imaging. The fetus is oriented tail-first, something seen more often in advanced icthyosaurs! 🎨: Fabio Manucci

🚨NEW STUDY DROP🚨 New plesiosaur, Argentinonectes calafatensis, is described from a rather complete skeleton from Upper Cretaceous Patagonia. It helps shed light on the tail anatomy for these plesiosaurs. 🎨: The_trexdraw (Chubutinectes pic.)

🦇 Another awesome commission! This one features two Late Eocene Egyptian giant bats- Aegyptonycteris (with the fruit) and Witwatia. Both of them were around the size of the extant Spectral Bat (the largest living carnivorous bat). #paleoart

🚨NEW STUDY DROP🚨 Very fragmentary Unenlagiid theropod is named, Kank australis, from Maastrichtian Chorillo Formation of Patagonia. This is one of the very few named from Southern Patagonia. It had very airy neck bones! 🎨: PaleoGDY + Connor Ashbridge

🚨NEW STUDY DROP🚨 New euarthropod is named Oreinorema bergstroemi, from early Cambrian Chengjiang biota. This thing looks like a radiodont from afar, but key features (like the mouthparts) place it outside of the group. It's a transitional form! 🎨: Xiaodong Wang

🚨NEW STUDY DROP🚨 New corcoraniid is described as, Magnicornaspis garwoodi, from the lt Cambrian Rivière-du-Loup Formation of Quebec, Canada. It's another piece of evidence that the Furongian Gap may be an artifact of preservation, and not extinction.

Mesadactylus, color scheme based on model made by @novastein.bsky.social #paleoart #sciart

🚨BREAKING PALEO NEWS🚨 Yet another T.rex going to auction... Gus rex. Collected over 2021/22/23 field seasons. 183 bones,~63% complete by bone count, 75–80% of bone mass. 82% complete skull. • Length~38 feet • Auction with Sotheby’s July 14 • EST. 20-30 mill USD for this...

🚨NEW STUDY DROP🚨 New enantiornithine bird is described as, Plumadraco bankoorum, based on a complete skeleton from the Jurassic Jiufotang Formation of Liaoning. It bore a pair of long rectrices on its tail the authors think it used for social interactions 🎨: Ville Sinkkonen

🚨NEW STUDY DROP🚨 Old pterosaur genus, Palaeornis, is renamed to Rexarthuria. Genus preoccupied by bird, original material contains unique traits despite fragmentary nature, found as member of Tapejaromorpha. 🎨: Anthony Hutchings (Aymberedactylus pictured)

🚨NEW STUDY DROP🚨 New shuvosaurid described as, Labrujasuchus expectatus, from fragmentary material of a few individuals from the Late Triassic (Norian) Hayden Quarry/Petrified Forest Member/Chinle Fm, NM. It fits into a gap between Effigia + Shuvosaurus. 🎨: Jorge Gonzalez

🚨NEW STUDY DROP🚨 A dozen+ specimens from Santa María Amajac, Hidalgo, Mexico, of a Pliocene Axolotl have been named Ambystoma quetzalcoatli. This is the oldest known record of the genus in MX, and was similar in size and anatomy to the living Axolotl. 🎨: Diana Guzmán-Madrid

🚨NEW STUDY DROP🚨 Resurfaced photo ca. 1914, shows young Gryposaurus as it appeared on display at long-defunct Calgary Natural History Society Museum. It was prepared by AMNH crew and discovered by William Cutler. It aids the Mallon et al. 2023 discussion. 🎨: Davide la Torre

🚨NEW STUDY DROP🚨 7 vertebrae from the Paleocene (upper Danian) Porters Creek Formation of Alabama, are described as a new marine snake, Parapalaeophis jeffshawi. Body length is estimated at 1.94 ± 0.14m, 6.36 ±0.45ft 🎨: Joschua Knuppe (palaeophis pictured)

🚨NEW STUDY DROP🚨 All species and fossil material of the Paleocene-Miocene croc, Diplocynodon, is re-evaluated. 9 of the 11 species are found to be valid. 🎨: Jose Antonio Penas

🚨NEW STUDY DROP🚨 A re-analysis of Spinosaur skull fossils has found osteological correlates for the salt gland in birds and marine iguanas. This helps provide more support for their near-marine lifestyles. It would've been weird if they didn't have this. 🎨: Andrea Cau

🚨NEW STUDY DROP🚨 New species of giant mosasaur, Tylosaurus rex, based on over 12 specimens previously referred to other species of Tylosaurus. Culmination of the PhD research of lead author @tyrantlzrdqueen.bsky.social the paper is extremely thorough! 🎨: AlderonGames + @formorphology.bsky.social