Paleontology News

Life reconstruction of the extinct bear-dog Amphicyon ingens, a very distant relative of Eoarctos vorax. Image credit: Roman Uchytel.

Oligocene-Period Raccoon-Like Mammal Had Mollusk-Based Diet

Jun 8, 2023 by Enrico de Lazaro

Paleontologists in the United States have identified a new genus and species of early arctoid from an exquisitely preserved skeleton found in North Dakota’s...

Eukaryotic life appears to have flourished surprisingly late in the history of Earth. This view is based on the low diversity of diagnostic eukaryotic fossils in marine sediments of mid-Proterozoic age (around 1.6 billion to 800 million years ago) and an absence of steranes, the molecular fossils of eukaryotic membrane sterols. This scarcity of eukaryotic remains is difficult to reconcile with molecular clocks that suggest that LECA had already emerged between around 1.2 and more than 1.8 billion years ago. LECA, in turn, must have been preceded by stem-group eukaryotic forms by several hundred million years. Brocks et al. report the discovery of abundant protosteroids in sedimentary rocks of mid-Proterozoic age. Image credit: Arek Socha.

Molecular Remains of Ancient Complex Life Found in 1.6-Billion-Year-Old Rocks

Jun 8, 2023 by Enrico de Lazaro

Paleontologists have detected abundant protosteroids — traces of ancient life forms — in 1.6-billion-year-old sedimentary rocks that had formed...

Life reconstruction of Iani smithi. Image credit: Jorge Gonzalez.

New Iguanodontian Dinosaur Unearthed in Utah

Jun 7, 2023 by News Staff

Paleontologists have identified a new species of iguanodontian dinosaur from a partial skeleton found in the Cedar Mountain Formation, Utah, the United...

Life reconstruction of Bohra illuminata, a species of giant tree-kangaroo that lived in Nullarbor region, Australia, 250,000 years ago. Image credit: Peter Schouten.

Giant Tree-Kangaroos Were Once Widespread across Australia

Jun 7, 2023 by News Staff

Tree-kangaroos (genus Dendrolagus) today are found only in tropical forests of Queensland and New Guinea, but between 3.5 million and 250,000 years ago,...

The only known dinosaur adapted to life in water, Spinosaurus aegyptiacus swam the rivers of North Africa about 95 million years ago. Image credit: © Davide Bonadonna / National Geographic magazine.

Fossil Reveals Hidden Spinosaurid Dinosaur Diversity in Cretaceous Britain

Jun 7, 2023 by Enrico de Lazaro

A new analysis of an isolated spinosaur tooth from East Sussex shows that several distinct spinosaur lineages inhabited Britain during the Cretaceous period. Spinosaurus...

Macroevolution of pollination modes across angiosperms, showing the proportional marginal likelihood of pollination mode at the ancestral nodes for each angiosperm order. Image credit: Stephens et al., doi: 10.1111/nph.18993.

Study: Earth’s Earliest Flowering Plants Were Insect Pollinated

Jun 6, 2023 by Natali Anderson

Most living angiosperms (flowering plants) are pollinated by insects, and the new reconstruction of the ancestral pollination mode of angiosperms suggests...

Life reconstruction of Rhynchotherium gomphotheres. Image credit: Margret Flinsch / Sci.News.

Unique Gomphothere Assemblage Found in Florida

Jun 5, 2023 by Enrico de Lazaro

Paleontologists have unearthed several complete skeletons of gomphotheres — an extinct relative of elephants — at the Montbrook Fossil Dig...

Life reconstruction of Woznikella triradiata, a medium-sized dicynodont from the Triassic of Poland. Image credit: Sci.News / DrawingDinosaurs / Henryk Niestrój.

New Triassic Dicynodont Species Discovered in Poland

May 31, 2023 by Enrico de Lazaro

Paleontologists have identified a new genus and species of kannemeyeriiform dicynodont from the Triassic-period fossilized remains found in Poland. Life...

Life reconstruction of an Australian pterosaur. Image credit: Peter Trusler.

107-Million-Year-Old Fossils are Oldest Pterosaur Material Ever Found in Australia

May 30, 2023 by News Staff

Paleontologists have analyzed a partial pelvis bone and a small wing bone from two different pterosaur individuals found in the Australian province of...

Diprotodon optatum, a distant relative of Ambulator keanei. Image credit: Nellie Pease / ARC Centre of Excellence for Australian Biodiversity and Heritage / CC BY-SA 4.0.

Pliocene-Period Marsupial Was Long-Distance Walker

May 30, 2023 by News Staff

Paleontologists have redescribed Zygomaturus keanei, a species of marsupial that lived in Australia some 3.5 million years ago (Pliocene period), using...

This is an artist's rendering of Vintana sertichi. Image credit: © Lucille Betti-Nash.

First Postcranial Fossils of Rare Gondwanatherian Mammal Unearthed in Madagascar

May 24, 2023 by News Staff

Paleontologists have uncovered the first postcranial remains — skeletal remains apart from the skull — of Vintana sertichi, the largest known...

Inostrancevia with its dicynodont prey, scaring off the much smaller African species Cyonosaurus. Image credit: Matt Celeskey.

Saber-Toothed Predator Connects Permian Northern and Southern Hemisphere Faunas

May 22, 2023 by News Staff

Inostrancevia was a tiger-sized, saber-toothed gorgonopsian that lived on the supercontinent Pangea during the Permian period, approximately 252 million...

Torvosaurus gurneyi. Image credit: © Sergey Krasovskiy.

Study: Visual Perspective Taking Originated in Dinosaur Lineage, Likely Earlier than in Mammals

May 22, 2023 by News Staff

Taking someone else’s visual perspective marks an evolutionary shift in the formation of advanced social cognition. It enables using others’ attention...

Life reconstruction of Protathlitis cinctorrensis. Image credit: Oscar Sanisidro / Grup Guix.

Paleontologists Discover New Species of Spinosaurid Dinosaur

May 19, 2023 by Enrico de Lazaro

A new genus and species of spinosaurid dinosaur being named Protathlitis cinctorrensis has been discovered by Dr. Andrés Santos-Cubedo from the Universitat...

Stelladens mysteriosus. Image credit: Nick Longrich.

Cretaceous-Period Mosasaur Had Unique ‘Screwdriver Teeth’

May 18, 2023 by Enrico de Lazaro

Paleontologists have described an unusual new species of mosasaur based on a fossilized partial jaw and associated tooth crowns from phosphatic deposits...

Life reconstruction of Prenocephale prenes, a distant relative of Platytholus clemensi. Image credit: Antonin Jury / CC BY-SA 4.0.

New Species of Dome-Headed Dinosaur Identified in Montana

May 16, 2023 by Enrico de Lazaro

A new genus and species of pachycephalosaurid dinosaur has been described from a partial skull found in Montana, the United States. Life reconstruction...

Life reconstruction of the eurypterid Archopterus anjiensis. Image credit: Dinghua Yang.

Earliest Sea Scorpion from China

May 15, 2023 by Simon Braddy

Archopterus anjiensis, a new 445-million-year-old fossil sea scorpion, from the Chinese Zhejiang Province, is the oldest sea scorpion known from China. Life...

Life restoration of a North American brontothere species called Telmatherium and other animals of the Eocene Clarno Nut Beds, Oregon, the United States. Image credit: Larry Felder, National Park Service.

Brontotheres Evolved Their Enormous Sizes as Way to Survive in Competitive Ecological Niches: Study

May 12, 2023 by News Staff

After the extinction of non-avian dinosaurs at the end of the Cretaceous period, many mammals underwent a rapid increase in size. Several hypotheses for...

An artist’s impression of the Kimmeridge Clay pliosaur. Image credit: Megan Jacobs, University of Portsmouth.

Fossils of Gigantic Pliosaur Uncovered in England

May 10, 2023 by Sergio Prostak

Paleontologists have unearthed four cervical vertebrae of Jurassic pliosaurid in the Kimmeridge Clay Formation near Abingdon, Oxfordshire, England. The...