Search
- Reposting this old photo for #FossilFriday: what you are looking at is a fragment of Callixylon wood from the Late Devonian, about 360 million years ago, seen under the microscope. The elongated structures are the conducting cells & there's a hair on the right for scale. 🔬🌿⛏️ #paleobotany
- A trailer packed with prehistoric delights for #FossilFriday! I did some consultancy reconstructing the #Mesozoic world (and how it ended ☄️☠️) for 'The Dinosaurs', very much looking forward to seeing the show on @netflix.com March 6th. youtu.be/y4ZBSzYUTL0?si
- #FossilFriday 🧪⚒️
- Excited to present the flounder effect - how our biases in sampling and worker effort impact our view of organisms. A long term collaboration with @fossilsndcoffee.bsky.social, @bigfacecats.bsky.social, Jon Hendricks, and Curtis Congreve! #FossilFriday ⚒️🧪 www.nature.com/articles/s44...
- A few people asked for scale on this fossil. It's about 2.5 cm or an inch long. #FossilFriday
- I usually stick to echinoderms, but this insect was so stunning. This is a Cretaceous aged Neuropterid insect, Hemerobidae sp. #FossilFriday
- I don't think I've shared this in a while, so here are some Middle Jurassic British pterosaurs for y'all! #FossilFriday #paleoart #paleontology #Jurassic #sciart
- Caenogastropods & heterobranch gastropods from the Hettangian deposits of Luxembourg: palaeobiogeography & Early Jurassic faunal recovery in the western Tethys onlinelibrary.wiley.com/doi/10.1002/... #FossilFriday
- All over the world, there are legends of sea monsters swimming in the depths. In the mid-18th century, Dutch miners came face-to-face with one. They’d discovered Mosasaurus – an ancient animal unlike anything ever seen before. Find out about this undersea titan for #FossilFriday!
- Today's lycopsids ("clubmosses") are small plants and do not produce wood but some of their Paleozoic relatives did! This is a detail of the wood cells in a stem of Sigillaria from the Carboniferous of the USA 🔬🌿⛏️ Happy #FossilFriday! #paleobotany #botany
- I'm sticking with the marine reptile painting theme for Fossil Friday. Here's an old acrylic painting of Liopleurodon and Metriorhynchus, called "Killing Breach". #FossilFriday #SciArt #SciComm #PaleoArt #PalaeoArt #Pliosaur #Pliosaurus #Dinosaurs #MarineReptiles #JurassicWorld #Alt4Me
- Start your #FossilFriday with a bit of grounding in a classic tale.
- I usually stick to echinoderms, but this insect was so stunning. This is a Cretaceous aged Neuropterid insect, Hemerobidae sp. #FossilFriday
- The label said this is a Pennsylvanian aged trilobite track from the Hale Formation of Arkansas. I've never seen a trilobite or track from Pennsylvanian aged Arkansas. Trilobites would be extinct at the end of the Permian. #FossilFriday
- I finally have a nice LeGrand crinoid piece. This Mississippian aged site in Iowa is famous for crinoids with preserved color. The darker crinoid is Rhodocrinites kirbyi and the lighter one is Platycrinites symmetricus. #FossilFriday
- I picked up a few fossils from an old collection this week. I need a timeline cleanse for #FossilFriday Here it goes.
- happy #fossilfriday! this is copepteryx, a flightless seabird from the oligocene of japan. as a suliform, it was related to gannets, boobies, frigatebirds, and cormorants, though it and other plotopterids displayed remarkable convergence with the anatomy of penguins (art by mark witton)
- Paleo-puke FTW! New study reporting on oldest known regurgitalite from the Early Permian (~290 mya) of Germany, attributed to top predator Dimetrodon. Lovely puking Dimetrodon depiction by Sophie Fernandez, ht to @cascoclauda.bsky.social for throwing up this story. 🧪🪨🤮 #FossilFriday
- have you ever wanted to see dimetrodon vomit? no? well that's just too bad, because rebillard et al. have described a regurgitalite tentatively attributed to d. teutonis from early permian germany www.nature.com/articles/s41...
- Happy #FossilFriday how does a thread about the Inner Meadow biota and unexpected age for the fossils, and a refocusing of Martin Brasier’s #KotlinCrisis sound? We’ve been trickling out our findings from Inner Meadow including #Charnia brasieri, #Aninoides and there's even cooler stuff in review. 🧵
- Welcome back to another #FossilFriday Here is the molar from an American Mastodon (Mammut americanum). This comes from Pleistocene deposits in San Jacinto County, Texas. Mastodons used their bumpy molars for grinding up twigs, leaf matter, and other shrubs.
- #FossilFriday A bison jerky specimen: Pleistocene "Bison crassicornis" (B. priscus) found in "frozen muck" in Alaska at the National Museum of Natural History
- New #paleoart at #Patreon for #FossilFriday: Caudipteryx encounters a frozen lake, is unsure, prob. makes wee bokking noises as its feet slide apart hilariously. Lots of discussion about the colour data of this animal in my Patreon post. www.patreon.com/posts/149439... #sciart #fossil #dinosaurs
- Whilst you're unlikely to see knights in chainmail wondering the streets of London, squamate lizards pack a secret body armour millions of years in the making...but like the band Hot Chip, over and over and over and over... 🧵(1/2) #FossilFriday @linneansociety.bsky.social
- Lithic technological change, hominin history and climatic background from the late Middle Pleistocene to middle Late Pleistocene (ca. 300–50 ka) in China. Source: doi.org/10.1038/s414... #FossilFriday
- I missed #FossilFriday, but the Morrison Formation has spoken! A special volume of the New Mexico Museum of Natural History & Science Bulletin just dropped, and it is 100% chock-full the latest in Morrison goodies. 🧵
- Just in time for #FossilFriday, the next paper in the Grande volume! Two new double-armored clupeomorphs (Ellimmichthyiformes) from the Jurassic (!!) of Peru 🇵🇪 Open-access paper led by Elizabeth Ordóñez and including the incomparable Gloria Arratia: deepblue.lib.umich.edu/items/4a9a1b...
- First paper of 2026 is out for #FossilFriday, and the first of probably several ornithischian papers over the next interval. Here my coauthors and I describe some tantalizing bits that suggest that ornithischian diversity in the Morrison Formation is higher than previously recognized.
- This #FossilFriday we are pleased to have published the new younginid taxon Scyllacerta from the late Permian of South Africa 🇿🇦 This beautiful aggregation has the holotype and has been in the literature for 30 years as “juvenile Youngina”. Photo taken before scanning at the @esrf.fr
- Met with a local landowner this week to organize & outline a manuscript describing the INCREDIBLE variation of Triassic reptile teeth she has been collecting and curating from her property, will be accessioned at @NMMNHS. Check out those compound denticles! #fossilfriday 🦖🧪
- Probably worth repeatedly getting water in my boots as I failed to outrun the waves on Charmouth beach today. It was wild out there. #fossil #jurrasic #fossilfriday #ammonite
- (sub) #FossilFriday: For a change of pace, here are some mostly-uncataloged remains of aurochs, bison, goats, etc from Jarmo, a 9,000 year-old agricultural village in Iraq. 🐃🦬🐐
- Welcome back to #FossilFriday Here is quite a large solitary rugose (horn) coral belonging to the taxa Grewingkia canadensis. This specimen was collected from the Upper Ordovician Whitewater (upper cincinnatian series) Formation in Indiana.
