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Question: what is the most insane fossil in the world? Answer: the Holm preparation of Eurypterus. These are Wenlock (~430 Ma) sea scorpions etched out of limestone with nitric acid and mounted on slides in the late 19th century. LOOK AT THIS SHIT!

After a full day of driving, glad to arrived at #NAPC2024 ! 🦣🪨🌿🐟

Today- talking about Silurian Lagerstätten and how they measure up! Come for terrible Charles Dickens mis-quotes and craigslist ads looking for heterostrascan fish friends #NAPC2024

Indiana Jones spinoff about the grad student made to teach the rest of the semester with 45 minutes notice

Introducing Entothyreos synnaustrus gen. et sp. nov., a 508 million years old lobopode #fossil from the #BurgessShale Tulip Beds of Yoho National Park of Canada, British Columbia - by Dr. C. Aria & Royal Ontario Museum’s Dr. Jean-Bernard Caron 🌊🐛 🔗📃 doi.org/10.1080/147720… 🖌️🎨 Danielle Dufault

Never-before-seen trilobite soft tissue! Turns out they had a soft labrum connected to the hypostome, and even more going on under the head! Some truly incredible fossils.

Fossil fishes on Independence Day! The cyathaspidid Americaspis americana, the first (?) Silurian 'ostracoderm' fish described from the western hemisphere (as Palaeaspis americana by Claypole in 1884). Image from Denison (1964) on BHL: …ersitylibrary-org.proxy.lib.umich.edu/part/262886

For #FossilFriday, Thanahita distos, a three-dimensionally preserved lobopodian from the Silurian of Herefordshire, England. The nodule which contained the only known fossil was cut and ground away in thin sections, and photos of each slice were used to make a digital model.

Not good. Museum collections & research are essential to understanding both the history and future of life on Earth. "California Academy of Sciences reeling from budget cuts: a major natural history collection loses one-quarter of its curators" science.org/content/articl…

Recognizing the “short-sighted, absent-minded and kindly eccentric” Lt. Col. C.C. Grant. Finder of the first soft-bodied fossils of what is now the Eramosa Fm., you would have loved to see its Lagerstätte. May all our papers be useful, if repetitive. #FossilFriday

Guess I'm technically a "vertebrate paleontologist" now 😅 alongside Rudy Lerosey-Aubril we introduce the new taxon Nuucichthys rhynchocephalus, the first soft-bodied Cambrian vertebrate from Western USA and the latest species from the Marjum biota Royal Society Publishing royalsocietypublishing.org/doi/10.1098/rs…

Important work led by Alejandro Izquierdo López, PhD, redescribing Odaraia from the #BurgessShale. Clear mandibles link hymenocarine bivalved arthropods and fuxianhuiids as stem group mandibulates. The fine mesh of spines on the limbs confirms that Odaraia and its relatives were filter feeders.

A look inside an ancestral arthropod dx.doi.org/10.1038/s41586… Perhaps the most remarkable fossil I'll ever work on!

For (delayed) #TardigradeTuesday we are chuffed to share a new OA study by graduate student Marc Mapalo Harvard Organismic & Evolutionary Biology Museum of Comparative Zoology redescribing the fossil tardigrade Beorn leggi, and introducing Aerobius dactylus gen et sp. nov. from Cretaceous amber! nature.com/articles/s4200…

After over a year in the works, I can proudly say that I have been fortunate enough to publish my first ever research paper (and as lead author too… wow!) 🏛🔬 (1/3)

Bioturbative activities of modern priapulids & potential ecosystem engineering impacts during the Ediacaran–Cambrian transition onlinelibrary.wiley.com/doi/full/10.11… Kat Turk Senckenberg Research Wiley Earth and Space Science

Working in the Eramosa is going to spoil me for any future micropaleo work- where else can you grab a hand sample and get multiple conodont assemblages in 15 minutes? Haven’t identified them yet, but likely Wurmiella excavata, which dominates these outcrop #FossilFriday

🚨A new Fezouata paper is out! We investigated preservation at a high resolution and found that phylum-specific constraints and complex taphonomic processes influenced what got preserved in this Lagerstätte 🦐🌊. Université de Lausanne Swiss National Science Foundation ANOM Lab Reconstruction by Prehistorica (Christian M.)

The Fezouata Biota, a diverse ecosystem from the early Ordovician of Morocco. Living near the South Pole at the time, these animals would have spent half the year in darkness, and the other half in the sun.

🚨Paper alert🚨Meet Polygoniella turrelli, our latest addition to the remarkable Cambrian Marjum Biota of Utah. This 500-million-year-old sponge displays a complex anatomy that has no equivalent amongst poriferans of that time. Lucas Del Mouro Javier Ortega Hernández doi.org/10.1098/rsos.2…