Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...

Abstract. The Silurian ‘maxillate placoderms’ Entelognathus primordialis and Qilinyu rostrata were previously described as possessing a single dermal operc

Aït Ouali, R. (1991). Le rifting des Monts des Ksour au Lias. Organisation du bassin, diagénèse des assises carbonatées. Place dans les ouvertures mésozoïques du Maghreb. [Unpublished doctoral dissertation]. Université d’Alger.

Marine subsidization (MS) of terrestrial ecosystems, in the form of marine-derived organic matter, energy, and nutrients, is a well-known phenomenon on moder...

The only recorded member of the bird-like Troodontidae from Early Cretaceous North America is Geminiraptor suarezarum, known from an isolated maxilla recovered from the Suarez Site bonebed of the basa...

‘Thoracosaurs’ are Late Cretaceous to early Palaeogene longirostrine eusuchian crocodyliforms from coastal marine deposits in Europe and North America. Their phylogenetic placement is debated; wherea...

The museum at the Academy of Natural Sciences​ of Drexel University, the oldest natural history museum in America​, closed to the public Sunday, but for many the fight isn't over.

Apply for the Postdoctoral Research Associate in Cognitive Evolution over Deep Time role on jobs.ac.uk, the top job board for academic positions in higher education. View details and apply now.

The injection of thermal energy comes amid an increasing rise in sea levels and continuing acidification

Diversity and disparity in mammalian fossil assemblages of the John Day Formation, Oregon, USA

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Despite the abundance of dinosaur footprints from the Middle Jurassic Cleveland Basin of Yorkshire, UK, examples of footprints indicating two or more different species inhabiting a particular site and...

Microraptorines were bird-like dinosaurs that possessed some flight adaptations. A new fossil species from the early Cretaceous, Norellraptor barsboldi, suggests that this group evolved their own flig...

Sauropodomorph-bearing assemblages from the Khorat Plateau, Thailand, begin at least 20 million years later than previously believed, with subsequent faunal turnover paralleling that observed in Laura...

Baenids are freshwater paracryptodiran turtles with a fossil record ranging from the Early Cretaceous to the Eocene. The baenid Plesiobaena antiqua is the most common turtle in the Campanian (Late Cr...

This study describes Tenuicruris piscanexum, gen. et sp. nov., the second Cretaceous bird named from Australia, based on a well-preserved tibiotarsus. Detailed morphological analysis and phylogenet...

A Russian jet-powered drone hit Ukraine’s National Academy of Sciences, the source of almost all of the country’s major scientific discoveries.

New finds in palaeontology are dependent on people getting out in the field and digging up fossils, but are the next generation of palaeonto

Most mammals replace their teeth only once. A new, carnivorous, semiaquatic fossil mammal from the Early Cretaceous of China reveals multiple tooth generations, enhancing our understanding of mammal d...

A rostral beak, a highly keratinized tissue covering the perioral region of the skull, has been hypothesized for many sauropodomorphs and eusauropods over the past few decades by several authors, base...

With the addition of 29 U.S. sailors and eight Marines, the total number of personnel wounded since the start of hostilities has risen to 861, a Pentagon database shows.

Genuine artifacts tell the richest stories that fill our souls. And they fuel the scientific enterprise.

ALT: Seinfeld's Babu Bhatt: No Bad!

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