RT @AnatomyOrg: Curious about board candidacy? Check out this article written by Past-President and Nominating Committee chair, Dr. Martine….

New data on Jiucaiyuangnathus confusus (Lower Triassic, Xinjiang): new skull + partial skeletons show juvenile traits, 6 upper incisors, distinct canines, unique prootic morphology. Liu et al.: #FossilFriday

🦷 In rat molar development, ANXAs localize near blood vessels early, with ANXA2 co-localizing with the Ca²⁺ pump in odontoblasts. Signals fade postnatally, suggesting ANXA2 drives early dentin calcification. Research by Toru Shibui et al.:

Bone microstructure holds clues to life history. In springbok, growth marks in limb bones reveal age, stress events & skeletal maturity. New study links ages to histology, showing mid-cortical marks reliably indicate age before maturity.Heck et al

Study on duck-billed dinosaur Huallasaurus australis reveals no evidence of invasive air sacs in Ornithischia. CT scans show dense vertebrae, suggesting these dinos used a “pelvic bellows” breathing system—unlike saurischians.Aureliano et al: #FossilFriday

RT @tito_aureliano: 🚨🧪We’ve just published a new paper!🚨.We peered inside the bones of duck-billed dinosaurs from Patagonia to uncover secr….

📢 Call for Papers!.Anatomical Record Special Issue: Evolution of Birth Difficulties. ✨ Focus: Obstetrical dilemma, pelvic anatomy, neonatal & primate adaptations.📅 LOI: Sept 1 | 📝 Manuscript: Dec 1. Guest Editors @PaleoNicole & @cedric_pp .

Goats show distinct skull growth strategies before & after birth 🐐 Using 3D morphometrics, a new study found prenatal & postnatal growth follow different trajectories, shaped by diet, maturity at birth & horn development. Research by Segura et al.:

In the southern bunchgrass lizard (Sceloporus aeneus), egg size & volume correlate with embryonic stage. Researcers defined 11 stages—mainly by limb shape & pigmentation—linking growth to development. Antonio-Rubio et al.:

🦖📢 Call for Papers!.The Anatomical Record Special Issue: South Asian Paleobiology 🌏. ✨ Theme: Fossil vertebrates & evolution on a drifting continent.📅 LOI: Oct 1, 2025 | 📝 Manuscript: Dec 1, 2025. #Paleontology #Evolution #CallForPapers .

CT-scanning a rare perinatal Gavialis gangeticus (critically endangered gharial) reveals unique skull + sinus features differing from adults. Researchers share a free 3D atlas for future crocodylian ontogeny research. Maria Castillo & Maria Gold: .

Inner & middle ear shape in 57 primate species shows ecology shapes auditory anatomy. Some support for Acoustic Adaptation Hypothesis—but Sensory Drive, especially under interspecies competition, better explains morpho-acoustic evolution. Myriam et al.:

New morphometric analysis of Australopithecus afarensis maxillae shows:.High shape/size variation—comparable to gorillas.No allometry.No time trend.Low shape dimorphism.Key for testing hominin species boundaries.Research by Hanegraef et al.: #FossilFriday

🐇 CT data from 300+ rabbits show smaller animals of domestic breeds have rel. larger teeth—unlike wild species, where tooth-body scaling is more balanced. Could dental issues in tiny breeds point to missing theory of optimal tooth size?.Fasciati et al

Diet affects not just skull shape but bone quality too. In rabbits, tougher diets changed nanoscale stiffness & hardness in jaw bones—but not braincase—suggesting region-specific plasticity. Implications for reconstructing feeding behavior!.Ravosa & Franks

Our September issue is now live!.The cover article by Sven Sachs et al. describes the early-diverging plesiosauroid Seeleyosaurus guilelmiimperatoris from the Lower Jurassic of Germany: .

RT @TomHoltzPaleo: On the paranasal and paratympanic sinuses of perinatal Gavialis gangeticus, with notes on the endocast, ossification obs….

RT @AnatomyOrg: Join us in congratulating AR's editor-in-chief, @heatherfsmith, and guest editors, Drs. Felipe L. Pinheiro, @FlavioAPretto,….

🦣 New discoveries at Mammoth Site (USA): 2 foot elements—a “predigit” & fused sesamoids—found for 1st time in extinct elephants. Long known in modern elephants, they reveal ancient adaptations for supporting massive land giants.Gardner et al #FossilFriday

We're excited to be a sponsor the 2025 International Congress of Vertebrate Morphology. Dont miss our sponsored symposium "Kings and Queens of the Air: How Archosaurs Grew Wins and Controlled the Skies" on Friday August 8th 8:00-11:40am EDT.