Reposted by @jvelezjuarbe.bsky.socialNatural History Museum of Los Angeles County @nhm.org · 05/10/2026Would you believe this tooth is from one of the largest sharks that ever lived? 𝘖𝘵𝘰𝘥𝘶𝘴 𝘮𝘦𝘨𝘢𝘭𝘰𝘥𝘰𝘯 (previously classified as 𝘊𝘢𝘳𝘤𝘩𝘢𝘳𝘰𝘤𝘭𝘦𝘴 𝘮𝘦𝘨𝘢𝘭𝘰𝘥𝘰𝘯) could grow to more than 60 feet long, cementing its place as the largest predatory shark in Earth's history. 1368
Reposted by @jvelezjuarbe.bsky.socialKiersten Formoso, PhD(epressed) @formorphology.bsky.social · 01/10/2026Hi! My World View in Nature Reviews Biodiversity was published today! Read about my three main aims when educating people about topics in natural history. www.nature.com/articles/s44...nature.comThree ideas to inspire curiosity in natural history educationNature Reviews Biodiversity - Natural history can captivate the minds of all manner of people for a multitude of reasons, but a shifting media landscape demands adaptation from public educators.... 110040
Reposted by @jvelezjuarbe.bsky.socialNatural History Museum of Los Angeles County @nhm.org · 04/10/2026Observing ornithology collections in a whole new light. Hear from #NightTales featured artist Maggie West about capturing these exquisite specimens for our new activation starting next month. — go.nhm.org/maggie-west 1182
Reposted by @jvelezjuarbe.bsky.socialFlorida Museum of Natural History @floridamuseum.bsky.social · 21/08/2026An international team of scientists collected and carbon-dated more than 7,500 marine fossils to understand time averaging—in which organisms from different time periods are preserved together in the same fossil bed. Story: www.floridamuseum.ufl.edu/science/pale... Study: doi.org/10.1073/pnas... 0208
Reposted by @jvelezjuarbe.bsky.socialThomas R. Holtz, Jr. @arctomet.bsky.social · 17/08/2026Full article: Physical evidence of crocodylian predation on ungulates in the Middle Miocene of Colombia www.tandfonline.com/doi/full/10....tandfonline.comPhysical evidence of crocodylian predation on ungulates in the Middle Miocene of ColombiaSouth American fossil mammalian assemblages contain a relatively low ratio of predators to prey. Consequently, large non-mammalian predators occupy a major ecological role. In the Middle Miocene as... 1123
Reposted by @jvelezjuarbe.bsky.socialNatural History Museum of Los Angeles County @nhm.org · 12/08/2026🐘 You're familiar with our iconic elephant diorama, but what do you know about earth's largest land animal? Celebrate this World Elephant Day with interesting facts courtesy of Dr. Kayce Bell, Associate Curator of Terrestrial Mammalogy. 1236
Reposted by @jvelezjuarbe.bsky.socialThomas R. Holtz, Jr. @arctomet.bsky.social · 12/07/2026Postcranial osteology of Boverisuchus vorax from the middle Eocene of Wyoming, USA: Implications for terrestrial adaptation in eusuchian crocodyliforms - Iijima - Journal of Anatomy - Wiley Online Library onlinelibrary.wiley.com/doi/10.1111/...onlinelibrary.wiley.com 0186
Reposted by @jvelezjuarbe.bsky.socialRichard Butler @richardjbutler.bsky.social · 13/07/202623 month research associate job now available with our team to work on Middle Jurassic mammals from Scotland. Requires strong experience with segmentation of CT data but does not require a PhD. Deadline for applications is 26th July. edzz.fa.em3.oraclecloud.com/hcmUI/Candid...edzz.fa.em3.oraclecloud.comResearch Associate (Leverhulme) - School of Geography, Earth and Environmental Sciences - 105138 - Grade 6This is a Research Associate position to assist in palaeobiological research conducted as part of the project “New Insights Into Early Mammal Evolution From Exceptional Scottish Fossils” funded by the... 12031
Reposted by @jvelezjuarbe.bsky.socialWilliam B. Ludt, PhD @planet-of-fishes.bsky.social · 23/06/2026Even giants start out small: new paper hot off the press documenting the early development of Giant Sea Bass led by Emily Ladin and Larry Allen. Link should provide free access: www.ichthyologyandherpetology.org/ihbjbf/awi20...ichthyologyandherpetology.orgDevelopmental Osteology of Young-of-the-Year Giant Sea Bass, Stereolepis gigas — Ichthyology & HerpetologyDevelopmental Osteology of Young-of-the-Year Giant Sea Bass, Stereolepis gigas Emily S. Ladin, Michael P. Franklin, William B. Ludt, and Larry G. Allen 054
Reposted by @jvelezjuarbe.bsky.socialRichard Butler @richardjbutler.bsky.social · 20/06/2026The extent to which fieldwork in palaeontology (& other research areas) is valued has been in long-term decline, with funding challenging despite its fundamental importance. Will the rise of AI change this given that finding, collecting & studying new fossils cannot be done by a computer? I hope so. 1226
Reposted by @jvelezjuarbe.bsky.socialThomas R. Holtz, Jr. @arctomet.bsky.social · 21/06/2026Functional morphology of the first known skeleton of Leptarctus (Mustelidae, Carnivora) clarifies the palaeoecology of a distinctive predator lineage sjp.pensoft.net/articles.php...sjp.pensoft.netFunctional morphology of the first known skeleton of Leptarctus (Mustelidae, Carnivora) clarifies the palaeoecology of a distinctive predator lineageLeptarctine mustelids are Neogene carnivorans with fossil records in Asia and North America. In the 170 years since the clade was erected, all taxa within this clade have been characterised based on c... 0187
Reposted by @jvelezjuarbe.bsky.socialMatt Friedman @friedmanlab.bsky.social · 01/06/2026Busy past week or so for my mammal paleo colleagues at UMMP w/ new papers in Journal of Mammalian Evolution, Evolution, and Journal of Paleontology! Details below . . . 1114
Reposted by @jvelezjuarbe.bsky.socialPaleoJim @paleojim.bsky.social · 29/05/2026#FossilFriday New ichnogenus of possible tritylodont tracks associated with newly discovered tritylodont bonebeds under study by @andrewtracks.bsky.social from Glen Canyon National Recreation Area. What long toes you have grandpa? 08419
Reposted by @jvelezjuarbe.bsky.socialManolo Matos @manolomatos.bsky.social · 19/05/2026Ya está el nuevo episodio con Agustín de Curiosidad Cientíifica. Escucha en: shows.acast.com/manolomatos 021
Reposted by @jvelezjuarbe.bsky.socialMatt Friedman @friedmanlab.bsky.social · 14/05/2026Another Thursday at the collection, so here's the holotype of the river dolphin Pomatodelphis bobengi (UMMP VP 15117) from the Miocene of Florida. 0308
Reposted by @jvelezjuarbe.bsky.socialNatural History Museum of Los Angeles County @nhm.org · 01/05/2026When is a bird a mystery? When it’s an (a)enigma. Meet 𝘚𝘢𝘱𝘢𝘺𝘰𝘢 𝘢𝘦𝘯𝘪𝘨𝘮𝘢, a little green bird found in a thin slice of tropical rainforest cutting through Central and South America, including Colombia, the most bird-biodiverse country on the planet: go.nhm.org/lice-lensgo.nhm.orgOne Tropical Bird's History Through the Lens of LiceNHM's new Ornithology Collections Manager, Juliana Soto-Patiño, discovers the evolutionary origins of the mysterious Sapayoa aenigma through its parasitic louse 0184
Reposted by @jvelezjuarbe.bsky.socialPaleoJim @paleojim.bsky.social · 10/04/2026Out working on basal Cedar Mt. east of Utahraptor Ridge capped by Naturita Fm. east of Utahraptor Ridge. Upper middle cliff is Poison Strip Mbr. Red Beds at base in Morrison Fm. Got Lower Yellow Cat described from base of section..some surprises.. Chert lenses near base. @utahpaleo-ufop.bsky.social 1293
Reposted by @jvelezjuarbe.bsky.socialZoological Journal of the Linnean Society @zoojlinnsoc.bsky.social · 10/04/2026It's #FossilFriday and you know what that means! We might have been slow today, but we're not sleeping on this neotropical giant ground sloth, where a near complete skull & 2 partial skeletons from Brazil shine a light on a previously misunderstood species! 🌍🧪👇 doi.org/10.1093/zool... 0255
jvelezjuarbe.bsky.social @jvelezjuarbe.bsky.social · 08/04/2026Long before becoming giants like this 22 m #BlueWhale (Balaenoptera musculus) skull, baleen whales were small. The skull I’m holding is a cast of #Fucaia goedertorum (body lenght ~2.2 m), an early relative that still had teeth and used them to catch prey. #WhaleWednesday 1267
jvelezjuarbe.bsky.social @jvelezjuarbe.bsky.social · 08/04/2026The deadline for the @societyofvertpaleo.bsky.social awards and grants is today!! 000
Reposted by @jvelezjuarbe.bsky.socialThe Anatomical Record @anatrecord.bsky.social · 08/04/2026Are fossil seal bones misleading us? For years, scientists used isolated humeri & femora to name extinct seal species—but new research suggests that may not be reliable. Many fossil seals named from single bones may need a 2nd look. Dewaele et al.: anatomypubs.onlinelibrary.wiley.com/doi/10.1002/... 0116
jvelezjuarbe.bsky.social @jvelezjuarbe.bsky.social · 31/03/2026The 2026 deadline for the @societyofvertpaleo.bsky.social awards and grants has been extended to April 8!! Feel free to reach out if you have questions about the Bryan Patterson Memorial Grant vertpaleo.org/patterson-me... #VertebratePaleontology #StudentGrants #Paleontology #Fieldworkvertpaleo.orgBryan Patterson Memorial Grant – Society of Vertebrate Paleontology 011
Reposted by @jvelezjuarbe.bsky.socialWilliam B. Ludt, PhD @planet-of-fishes.bsky.social · 27/03/2026The deadline for our NHMLA Student Collections Study Award is coming up really soon. There are still a few more days to apply! 087
Reposted by @jvelezjuarbe.bsky.socialThe Palaeontological Association @thepalass.bsky.social · 27/03/2026A new terror bird (Cariamiformes, Phorusrhacidae) from the Late Pleistocene of Brazil: insights into the last representatives of the family onlinelibrary.wiley.com/doi/10.1002/... #PapersinPalaeontology #FossilFriday 0297
Reposted by @jvelezjuarbe.bsky.socialFlorida Museum of Natural History @floridamuseum.bsky.social · 27/03/2026Congratulations! 👏👏👏 Michal Kowalewski has been selected as a 2025 fellow of the American Association for the Advancement of Science! Michal is the Thompson chair of invertebrate paleontology here at the Florida Museum. Read: www.floridamuseum.ufl.edu/science/mich... 2131
Reposted by @jvelezjuarbe.bsky.socialProf. Valentin Fischer @val-fisch.bsky.social · 25/03/2026New lab paper! We've applied fancy FEA to Cretaceous marine reptiles of the Western Interior Seaway. Lead by @just-fre.bsky.social, with @rboman.bsky.social, @narimanechatar.bsky.social, @palaeotheoryum.bsky.social, and me. onlinelibrary.wiley.com/doi/10.1111/...onlinelibrary.wiley.comDistinct feeding biomechanics in Late Cretaceous marine reptiles from the Western Interior SeawaySympatry of numerous predatory marine reptiles appears to be the rule rather than the exception in many Mesozoic formations, implying that these lineages are likely to have evolved some form of ecolo... 0107
Reposted by @jvelezjuarbe.bsky.socialProf. Valentin Fischer @val-fisch.bsky.social · 24/03/2026New lab paper, this time on phocid limb morphometrics! Lead by former EDDyLab postdoc Dr. Leonard Dewaele, with @narimanechatar.bsky.social, Prof. Mark Uhen, master student Jacques Klassen, and yours truly anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...anatomypubs.onlinelibrary.wiley.comLong bone variability in true seals (Mammalia, Phocidae), with implications for understanding their fossil recordHistorically, humeri and femora have been treated as diagnostic elements for fossil phocid (Carnivora, Pinnipedia, Phocidae) identification. This resulted in the naming of a plethora of extinct phoci... 0129
Reposted by @jvelezjuarbe.bsky.socialPaleoSynthesis @paleosynth.bsky.social · 20/03/2026We are excited to present the latest workshop icon! CONSENSIS will take place in June in Erlangen and we are already looking forward to the exciting topic "sensory evolution" 084
Reposted by @jvelezjuarbe.bsky.socialNatural History Museum of Los Angeles County @nhm.org · 23/03/2026😌 Millions of years of lore under one roof. What's your favorite #NHMLA memory? 2204
Reposted by @jvelezjuarbe.bsky.socialAdiel Klompmaker @paleoadiel.bsky.social · 13/03/2026🐟 Bony fish discovery‼️ During my class field (Paleontology & Society) trip this Pachyrhizodus caninus jaw of 11" (28 cm) was found. Upper Cretaceous (lower Campanian, ~82 Ma) Mooreville Chalk, central Alabama. Discovered by George Martin. University of Alabama Museums paleo coll. #FossilFriday!! 23610
Reposted by @jvelezjuarbe.bsky.socialWilliam B. Ludt, PhD @planet-of-fishes.bsky.social · 10/03/2026Are you a student who wants to visit the NHMLA for your research? Do you advise or know a student who would benefit from visiting our collections? Well, there are three weeks left to apply for the NHMLA Student Collections Award. Help spread the word! 01218
Reposted by @jvelezjuarbe.bsky.socialOcean Census @oceancensus.bsky.social · 10/03/2026NEWS: Scientists from the Ocean Census and JAMSTEC have discovered 38 new species including deep sea polychaetes living in symbiosis with a marine sponge, ribbon worms and squat lobsters. Read more: oceancensus.org/press-releas...oceancensus.orgJapan’s Deep Ocean Reveals Dozens of New Species from Landmark 2025 Nippon Foundation–Nekton Ocean Census – JAMSTEC ExpeditionFollowing the Ocean Census-JAMSTEC expedition, scientists have confirmed the discovery of 38 new species and identified 28 further potential new species across two of Japan’s most understudied deep-sea regions: the Nankai Trough and the Shichiyo Seamount Chain. 163
Reposted by @jvelezjuarbe.bsky.socialDarren Naish @tetzoo.bsky.social · 09/03/2026Last night I watched all 4 eps of the new Netflix series The Dinosaurs. I tend not to comment on these kinds of shows as, having worked on them, I find that those people who criticize or critique them have no understanding of the competing pressures and factors inherent to the TV industry... 1/8 1124747
Reposted by @jvelezjuarbe.bsky.socialProf. Juan Cisneros ⚒️🐉 @cisneros.bsky.social · 27/02/2026O primeiro maxilar de "pelicossauro" encontrado na América do Sul. #FossilFriday 0287
Reposted by @jvelezjuarbe.bsky.socialThomas R. Holtz, Jr. @arctomet.bsky.social · 11/02/2026The largest extinct volant bird Pelagornis could not meet the energetic demands of skimming url: royalsocietypublishing.org/rsos/article...royalsocietypublishing.orgThe largest extinct volant bird Pelagornis could not meet the energetic demands of skimmingAbstract. The fossil record is one of our only direct insights into the lives of extinct species. In recent years, the development of biomechanical and aer 2359
Reposted by @jvelezjuarbe.bsky.socialAshPoust @ashpoust.bsky.social · 11/02/2026Our museum is part of the University's fund-drive: pardon the NPR-style interruption, but consider donating if you want to support public science. Wonderful donors are matching gifts, so it's a great chance to help us keep connecting the public with natural history. go.unl.edu/unsmglowbigredgo.unl.eduArchie the Mammoth's Champion Profile | Glow Big Red 2026Help Archie the Mammoth's champion efforts for Glow Big Red 2026 065
Reposted by @jvelezjuarbe.bsky.socialNatural History Museum of Los Angeles County @nhm.org · 11/02/2026Ever wonder how you can tell a dinosaur’s age? In a new study establishing Nanotyrannus as a species, researchers cross-sectioned slices of its hyoid to gauge maturity and understand how quickly it grew. Read more about the brand new discovery here: nhm.org/new-nanotyra... 0153
jvelezjuarbe.bsky.social @jvelezjuarbe.bsky.social · 21/11/2025#FossilFriday visiting some old friends! This was the first turtle shell I collected, it is a pelomedusoid from the early #Oligocene Juana Diaz Fm. in southwestern #PuertoRico. Pelomedusoids are found in shallow marine deposits across the #GreaterAntilles until the Pliocene. #CaribbeanPaleobiology 063
Reposted by @jvelezjuarbe.bsky.socialThomas R. Holtz, Jr. @arctomet.bsky.social · 21/11/2025#FossilFriday The walking sea cow Pezosiren at the National Museum of Natural History 111224
jvelezjuarbe.bsky.social @jvelezjuarbe.bsky.social · 14/11/2025Happy #FossilFriday! Heading to #PuertoRico for some #fieldwork & R&R! So here's #Elasmodontomys obliquus, an endemic rodent of unusual size that became extinct a few thousand years ago, marking the end of a lineage that reached the West Indies ~33 million years ago!! #ROUS #RodentsoftheCaribbean 073
Reposted by @jvelezjuarbe.bsky.socialTristan J. Stock @archelosaurian.bsky.social · 13/11/2025Tomorrow’s the big day. Feel free to stop by my poster on the evolution of pan-cheloniid pelagic specializations! #2025SVP #SeaTurtle 1135
Reposted by @jvelezjuarbe.bsky.socialNatural History Museum of Los Angeles County @nhm.org · 28/10/2025One team. Decades of history. Revisit our time with #Dodgers Team Historian Mark Langill as fandom springs to life with the #WorldSeries! Let’s go, Dodgers! go.nhm.org/dodgersgo.nhm.orgFandom Springs to LifeMark Langill | Team Historian, Los Angeles Dodgers 0114
Reposted by @jvelezjuarbe.bsky.socialAdiel Klompmaker @paleoadiel.bsky.social · 21/10/2025‼️Special volume about arthropod paleontology was published today in the Journal of Paleontology, honoring the late Dr. Rodney Feldmann.🦀🦞🦐 Many of the 20 articles are open access. @paleosoc.bsky.social #paleontology #fossil #crab #lobster #shrimp Full volume: www.cambridge.org/core/journal... 02311
Reposted by @jvelezjuarbe.bsky.socialNatural History Museum of Los Angeles County @nhm.org · 21/10/2025🦂 Scorpions? Not quite. Take a closer look into #NHMLA's Entomology collection and learn more about false scorpions with resident Assistant Curator of Entomology, Rodrigo Ruedas! 37417
Reposted by @jvelezjuarbe.bsky.socialJohn P. Friel, Ph.D. @friel.bsky.social · 17/10/2025From auction houses to private apartments in Asia, this film peels back the curtain on a world few ever see: fossil hunters risking everything, dealers moving specimens across borders, collectors with their prehistoric trophies, and scientists fighting to protect irreplaceable clues to Earth’s past.youtube.comInside The Multi-Million Dollar Global Dinosaur Fossil Market | Bones Of Contention - Part 1/2YouTube video by CNA Insider 2117
jvelezjuarbe.bsky.social @jvelezjuarbe.bsky.social · 03/10/2025My newest publication is out in @peerj.bsky.social! In this collaboration with Ana Valenzuela, Nick Pyenson & Mario Suarez we describe the most complete skeleton of the #AquaticSloth - #Thalassocnus - from #Chile! Artwork by @alexboersma-art.bsky.social 1/6 #FossilFriday peerj.com/articles/198... 17924
Reposted by @jvelezjuarbe.bsky.socialKayce Bell @kaycebell.bsky.social · 23/09/2025Hi! We need lice for our diversity and adaptation project. Specifically, we need lice from zebras, camelids (camels, llamas, alpacas, vicuñas, guanacos) & aardvarks. If you or someone you know might have lice, I'm happy to discuss our inclusive collaboration plans! sites.google.com/nhm.org/anop...sites.google.comMammals & LiceWe are interested in understanding what drives host-parasite relationships. We are using the Anoplura (sucking lice) parasite and mammalian host system to generate a comprehensive sucking louse phylog... 16961
Reposted by @jvelezjuarbe.bsky.socialLa Brea Tar Pits & Museum @tarpits.org · 17/09/2025🍖 Hungry for History? Fossils from the #TarPits reveal the diets of saber-toothed cats, dire wolves, and more—served straight from asphalt. Take a bite into prehistory: bit.ly/TarPitsPD 0183
Reposted by @jvelezjuarbe.bsky.socialProf. Valentin Fischer @val-fisch.bsky.social · 17/09/2025Are you tired of people constantly overestimating body size of marine reptiles? No longer! We provide equations to estimate body size in ichthyosaurians, mosasaurids, and thalattosuchians. 1/4 25325