This weeks #Lego #FossilFriday is #Plesiobalaenoptera

In 2010, Michelangelo Bisconti named a newly discovered fossil rorqual (the largest group of baleen whales), Plesiobalaenoptera quarantellii.

The fossils were found in sediments of the Stirone River in northern Italy.

Plesiobalaenoptera has a postcoronoid fossa, or hole in the dentary bone of the lower jaw, which would have made ram feeding difficult to perform.

Top) crinoid stem segment impression & Bottom) what looks like a crinoid calyx & other parts in Citronelle formation gravel chert, Southeast Louisiana. #FossilFriday #fossils

Happy #FossilFriday

For #FossilFriday, we have a fossil from our editor Ana Paula Carignano.

This fossil is UNC-PMIC 71 (Neuquenocypris calfucurensis), a right valve of the Upper Cretaceous ostracod from Patagonia. It inhabited lacustrine paleoenvironments & is a common component of the Upper Cretaceous continental assemblages of Patagonia

A #FossilFriday visual treat, the Cretaceous diatom Trinacria nitescens. In addition to their global ecological importance, diatoms are also a visual feast. Staring at this one enough will do wonder for your eyes. Scale bar = 10 microns. #paleontology
@calacademy.bsky.social @calacademy flic.kr/p/8cy7X6

My 25 years of palaeoart chronology...

In 2024 I designed the Ice Age Giants coin series, for the The Royal Mint and the Natural History Museum, London. One of the coins featured the steppe mammoth, it was a time to reflect on how long I'd been drawing very dead things!

Este #fossilfriday va dedicado a esos fragmentos de belemnites que te cruzas paseando por el jurásico.

New blog post!

My friend Eric was skeptical when I told him I was writing posts about ribs. But he loves food, so I’m starting each rib post with a rib dinner from restaurants near the #museum.

This week, we look at the shape of #ribs which turns out to be pretty critical to staying alive.

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#FossilFriday #paleontology #fossil #scicomm

https://life-from-a-certain-point-of-view.ghost.io/rib-connections-2/

Happy #FossilFriday! These bison teeth are survivors. This photo was taken at the bottom of Lake Bronson, Minnesota, which has been drawn down as part of the ongoing dam replacement project. I had the opportunity to participate in a archaeological survey there last Saturday.

The teeth spent nearly 90 years submerged beneath the lake, and an estimated 250 to several thousand years on the landscape before the reservoir’s creation.

#NewSpecies!
New late jurassic fish from #germany just came in:

Thrissops ettlingensis

Treatment: https://treatment.plazi.org/id/4EE2BDA1-4EE8-5723-904A-550F0BF7AB15
Publication: https://doi.org/10.3897/zitteliana.99.159055
#Zitteliana #ThrissopsEttlingensis

#FAIRdata
#science #OA #openaccess #biology #taxonomy #ecology #biodiversity #nature #wildlife #conservation #animals #fish #TeamFish #fishfriday #ichthyology #fossils #fossilfriday #paleo #paleontology #jurassic #thitonian

My 25 years of palaeoart chronology...

Into 2024 with a new version of "Elevenses," featuring Sinosauropteryx, for the cover of Vertebrate Palaeontology, Fifth Edition, by Prof Michael J. Benton.

Very happy to see our paper on Kayaca, a new Miocene fossil locality in Turkey, published open access in the Senckenberg Journal Palaeodiversity and Palaeoenvironments!

Congratulations to George Konidaris, Ahmet Aytek, and the whole team on this first result from our long term collaboration!

https://link.springer.com/article/10.1007/s12549-025-00666-1

This week for #Fossilfriday we have another #Guess that #Lego #Fossil.

This one I would rate as medium. This fossil is known from Italy.

Reminder: hide your answer behind a content warning. This will allow others to guess without a hint. I will post the answer tomorrow (and to anyone who guesses correctly).

This was designed by Nocculus9 (on Mecabricks)

Happy #FossilFriday!

This weeks #Lego #FossilFriday is #Wintonotitan

In 1974, Keith Watts found a left shoulder blade, much of the forelimbs, a number of back, hip, and tail vertebrae, part of the right hip, ribs, chevrons, and unidentifiable fragments.

These fossils were given the name Austrosaurus sp, Austrosaurus being the only named sauropod from Australia at the time.

In 2009, Hocknull et al. found these fossils differed enough from Austrosaurus to give them a new name, Wintonotitan wattsi.

#LostBones #FossilFriday In the summer of 2012, students from the Geology Department at Gustavus Adolphus College collected over 800 bones on the Des Moines River near Jackson, Minnesota.

This crunchy but beautiful left horse femur was part of the project and is now housed at the Jackson County Historical Society in Lakefield.

Jackson County: http://www.jchsmn.org
Lost Bones: https://medium.com/@dbrake40

For #FossilFriday, we have a fossil from our editor Roger Thomas.

This fossil is USNM 617253cp; showing the Early Cambrian stem-gastropod Pelagiella exigua from the Kinzers Formation in Pennsylvania, USA

Hoy, para celebrar #FossilFriday visita al Museo de Molina (Molina de Aragón - Guadalajara) Una colección de fósiles muy interesante, destacando la historia geológica del Geoparque.
https://museosdemolina.es/

Great collaboration with @etschopp (FU Berlin), Andre Saleiro (University NOVA, Lisbon) & partners from LIB Hamburg! Niche partitioning in 3 Jurassic sauropod faunas revealed using dental microwear texture analysis.
We find hints of migratory behaviour for camarasaurids, and a distinct habitat effect for sauropods from Tendaguru - likely due to sand from a nearby desert that settled on forage plants.
https://rdcu.be/ewN7L
#DinoScience #FossilFriday ‪@freieuniversitaet.bsky.social ‪@uni-kiel.de