Paleontology News

The First Animals on Land Evolved in Warm Tidal Nursery Pools 500 Million Years Ago

Reconstruction of the first animals on land, an ancient tidal flat at Blackberry Hill (500 million years ago), Wisconsin. Stranded jellyfish (1 m wide), the euthycarcinoid Mosineia (bottom left, 15 cm long), phyllocarid crustacean Arenosicaris (bottom right, green) and large slug‐like mollusc (70 cm long). Some euthycarcinoids occupy a tidal pool before it dries up. Image credit: Todd Gass.
Jul 26, 2024 by Simon Braddy

The evolution of the first animals on land, 500 million years ago, has been revealed. The ancestors of millipedes, called euthycarcinoids, evolved in warm tidal nursery pools from juvenile arthropods. Individuals that acquired sexual maturity early and survived the harsh tidal zone, passed on their genes to successive generations, leading to arthropods that could crawl onto land when the tidal pools dried up. Reconstruction of the first animals on...

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The fossil remains of Asiatyrannus xui, the first deep-snouted tyrannosaur from Ganzhou City of southeastern China. Image credit: Zheng et al., doi: 10.1038/s41598-024-66278-5.

New Tyrannosaur Species Discovered in China

Jul 26, 2024 by Enrico de Lazaro

Paleontologists have discovered the remains of a deep-snouted tyrannosaurid dinosaur named Asiatyrannus xui in southeastern China. The fossil remains of...

Nuucichthys rhynchocephalus was a pelagic organism with limited swimming abilities. Image credit: Franz Anthony.

Fossil of Cambrian Long-Headed Chordate Unearthed in Utah

Jul 25, 2024 by Enrico de Lazaro

Characterized by a finless torpedo-shaped body, Nuucichthys rhynchocephalus is the first soft-bodied vertebrate known from the American Great Basin. Nuucichthys...

Artistic reconstruction of Odaraia alata, swimming inverted. Image credit: Danielle Dufault.

Taco-Shaped Mandibulate Lived in Cambrian Burgess Shale

Jul 25, 2024 by Enrico de Lazaro

Mandibulates are an example of evolutionary success, representing over half of all current species on Earth. Today, mandibulates are everywhere: from sea-dwelling...

This is an artist's impression of the Upland Moa, Megalapteryx didinus, by George Edward Lodge, 1907.

Extinct Moa’s Refugia Continue to Serve as Sanctuaries for New Zealand’s Remaining Flightless Birds

Jul 25, 2024 by News Staff

Human settlement of islands across the Pacific Ocean was followed by waves of faunal extinctions that occurred so rapidly that their dynamics are difficult...

An artist’s rendition of an early human habitat in Tanzania 1.8 million years ago. Image credit: M. Lopez-Herrera / Enrique Baquedano / Olduvai Paleoanthropology and Paleoecology Project.

New Research Sheds Light on Processes that Shaped Hominin Evolution in Eastern Africa

Jul 23, 2024 by News Staff

Eastern Africa preserves the most complete record of human evolution anywhere in the world but scientists have little knowledge of how long-term biogeographic...

Hibernophis breithaupti lived 38 million years ago in what is now western Wyoming. Image credit: Jasmine Croghan.

38-Million-Year-Old Fossil Rewrites Snake Evolution

Jul 23, 2024 by News Staff

Paleontologists have described a new species of snake from the Early Oligocene of Wyoming based on four nearly complete and articulated specimens found...

Life reconstruction of Electroscincus zedi; areas of the lizard not represented in the material available are depicted as blurred. Image credit: Stephanie Abramowicz.

99-Million-Year-Old Burmese Amber Reveals Oldest Known Skink

Jul 22, 2024 by Natali Anderson

Paleontologists have found the remains of a previously unknown species of lizard in a piece of mid-Cretaceous amber excavated in northern Myanmar. Life...

Life reconstruction of Harenadraco prima. Image credit: Yusik Choi.

New Bird-Like Dinosaur Unearthed in Mongolia

Jul 17, 2024 by Enrico de Lazaro

Harenadraco prima is the first species of troodontid dinosaur ever found in the Late Cretaceous Baruungoyot Formation of Mongolia. Life reconstruction...

Paleo-Indians hunting a glyptodont, a relative of the armadillo that lived during the Pleistocene epoch. By Heinrich Harder, 1920.

Archaeologists Find Stone Tool Marks on 21,000-Year-Old Glyptodont Bones in Argentina

Jul 17, 2024 by Enrico de Lazaro

Archaeologists in Argentina have analyzed the 21,000-year-old fossil remains with cut marks belonging to a specimen of the exinct glyptodont Neosclerocalyptus,...

Skull of Asiatosuchus oenotriensis, holotype, from the Middle Eocene site of Casaseca de Campeán, Spain. Image credit: Narváez et al., doi: 10.1002/ar.25422.

Paleontologists Discover New Species of Ancient Crocodile

Jul 15, 2024 by Enrico de Lazaro

A new species of early crocodyloid crocodilian being named Asiatosuchus oenotriensis has been discovered by a team of paleontologists from the Universidad...

Benggwigwishingasuchus eremicarminis on the Panthalassan Ocean coast. Image credit: Jorge Gonzalez.

Pseudosuchian Archosaurs Inhabited Coast of Panthalassan Ocean

Jul 15, 2024 by News Staff

Paleontologists in the United States have described a new genus and species of extinct crocodile relative based on a partially articulated skeleton found...

Life reconstruction of ancient giraffids. Image credit: Apokryltaros / CC BY 3.0.

Miocene Giraffid Species Had Two Pairs of Ossicones

Jul 12, 2024 by Enrico de Lazaro

Paleontologists in Pakistan have unveiled a new genus and species of prehistoric giraffe relative from the Miocene epoch. Life reconstruction of ancient...

Probabilistic estimates of metabolic networks from modern life that were present in LUCA. Image credit: Moody et al., doi: 10.1038/s41559-024-02461-1.

Last Universal Common Ancestor Lived 4.2 Billion Years Ago: Study

Jul 12, 2024 by News Staff

The last universal common ancestor (LUCA) is the hypothesized common ancestor from which all modern cellular life, from single celled organisms like bacteria...

Sandoval-Velasco et al. assembled the genome and 3D chromosomal structures of a 52,000-year-old woolly mammoth. Image credit: Sandoval-Velasco et al., doi: 10.1016/j.cell.2024.06.002.

52,000-Year-Old Woolly Mammoth Skin Retained Its Ancient Genome Architecture: Study

Jul 11, 2024 by News Staff

Scientists from Baylor College of Medicine and elsewhere say they have discovered subfossils of ancient chromosomes in the remains of a female woolly mammoth...

Life reconstruction of Comptonatus chasei. Image credit: John Sibbick.

New Iguanodontian Dinosaur Unearthed on Isle of Wight

Jul 10, 2024 by Enrico de Lazaro

A new genus and species of iguanodontian dinosaur being named Comptonatus chasei has been described by University of Portsmouth Ph.D. student Jeremy Lockwood...

Fona herzogae. Image credit: Jorge Gonzalez.

Newly-Discovered Thescelosaurine Dinosaur Lived in Burrows

Jul 9, 2024 by News Staff

Thescelosaurines were a group of small to medium-sized, plant-eating dinosaurs that inhabited North America during the Late Cretaceous epoch. The newly-discovered...

Paleoenvironmental reconstruction of the Late Jurassic Phu Kradung Formation of northeastern Thailand. Image credit: Chatcharin Somboon.

T. rex’s Distant Relative Lived in Thailand 145 Million Years Ago

Jul 8, 2024 by Enrico de Lazaro

Three fossilized teeth from a previously unknown species of non-tyrannosaurid tyrannosauroid dinosaur have been unearthed in northeastern Thailand by a...

Gaiasia jennyae. Image credit: Gabriel Lio.

Giant Salamander-Like Predator Lived in Namibia 280 Million Years Ago

Jul 5, 2024 by News Staff

At over 2.5 m (8.2 feet) in length, the newly-described stem tetrapod Gaiasia jennyae was possibly the largest creature of its kind. Life reconstruction...

Life reconstuction of Gigantspinosaurus (bottom foreground), a sister species of the newly-discovered stegosaur Baiyinosaurus baojiensis, and and other dinosaurs from the Shaximiao Formation. Image credit: A. Belov / CC BY-SA 3.0.

New Species of Stegosaur Revealed

Jul 3, 2024 by Enrico de Lazaro

Paleontologists in China have found the fossil fragments from a new genus and species of stegosaurian dinosaur: Baiyinosaurus baojiensis. Life reconstuction...

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