Tuesday, November 19, 2019
Paleontology

Paleontology

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Woolly mammoth illustration Mauricio Antón © 2008 Public Library of Science
Paleontology

Archaeologist finds evidence of extinction theory

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Photograph of the traces analyzed: : Megalosauripus transjuranicus (A) y Jurabrontes transjuranicus (B). Credit: Matteo Belvedere et al.
Paleontology

Jurassic dinosaurs trotted between Africa and Europe

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Ampyx priscus in linear formation (Moroccan Lower Ordovician Fezouata Shale). Credit: Jean Vannier, Laboratoire de Geologie de Lyon: Terre, Planètes, Environnement (CNRS / ENS de Lyon / Université Claude Bernard Lyon 1)
Paleontology

Fossils show lining up is primal urge

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Gigantic dinosaurs like the sauropod Diplodocus, which weighed over 15 tons and was longer than an 18-wheeler truck, would have had problems with potentially lethal overheating. Hot blood from the body core would have been pumped to the head, damaging the delicate brain. New research shows that in sauropods, evaporation of moisture in the nose and mouth would have cooled extensive networks of venous blood destined for the brain. Other large dinosaurs evolved different brain-cooling mechanisms, but all involving evaporative cooling of blood in different regions of the head. Credit: Life restoration by Michael Skrepnick. Courtesy of WitmerLab at Ohio University.
Paleontology

Huge dinosaurs evolved different cooling systems to combat heat stroke

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A small, feathered theropod dinosaur, Saurornitholestes langstoni was long thought to be so closely related to Velociraptor mongoliensis that some researchers called it Velociraptor langstoni—until now. Credit: Jan Sovak.
Paleontology

Paleontologists discover complete Saurornitholestes langstoni specimen

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The Sosnogorsk lagoon just before a deadly storm. Credit: Mikhail Shekhanov for the Ukhta Local Museum
Paleontology

The earliest well-preserved tetrapod may never have left the water

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A new study led by Yale University confirms a long-held theory about the last great mass extinction event in history and how it affected Earth's oceans. The findings may also answer questions about how marine life eventually recovered. Credit: Michael Henehan & Pincelli Hull
Paleontology

Mystery solved: Ocean acidity in the last mass extinction

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Siamraptor skull reconstruction. Credit: Chokchaloemwong et al., 2019
Paleontology

Meet Siamraptor suwati, a new species of giant predatory dinosaur from...

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Ancient fossils reveal fresh clues about early life on land
Paleontology

Ancient fossils reveal fresh clues about early life on land

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Fossils preserved in Dominican amber reveal a new family, genus and species of microinvertebrate from the mid-Tertiary period, a discovery that shows unique lineages of the tiny creatures were living 30 million years ago. Credit: Provided by George Poinar Jr.
Paleontology

Meet the ‘mold pigs’ a new group of invertebrates from 30...

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Plotosaurus bennisoni is a mosasaur from the Upper Cretaceous (Maastrichtian) North America. Restoration illustration from Wikimedia Commons, CC BY 3.0.
Paleontology

Did mosasaurs do the breast stroke?

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Pterosaur
Paleontology

New Australian pterosaur may have survived the longest

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One of the three fossils of Lessiniabatis aenigmatica (MNHN F.Bol.566) from the famous fossil site of Monte Bolca (Italy) preserved as part and counterpart. The specimen is housed in the Museum National d'Histoire Naturelle of Paris. Credit: Giuseppe Marramà
Paleontology

Fossil fish provides new insights into the evolution

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A world map that shows where similary platinum spikes have been discovered in the world. The latest discovery is at the Wonderkrater site in Limpopo Province, South Africa. Credit: Francis Thackeray/Wits University
Paleontology

New research supports hypothesis that asteroid contributed to mass extinction

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A life reconstruction of the feathered dinosaur Anchiornis huxleyi based on fossil evidence of its color and patterning. This evidence included inferences about melanin pigments. Credit: HKU MOOC / Julius T Csotonyi / Michael Pittman.
Paleontology

What color were fossil animals?

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Artist's reconstruction of two rauisuchians fighting over a desiccated corpse of a mammal-relative in the Triassic of southern Africa. In the background, dinosaurs and mammal-like reptiles form other parts of the ecosystem. Credit: Viktor Radermacher, owns copyright
Paleontology

Croc-like carnivores terrorized Triassic dinosaurs in southern Africa 210 million years...

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An artist’s rendition of the Tyrannosaurus rex with the 3D imaging showing muscle activation in its head. Illustration courtesy of Brian Engh.
Paleontology

T. rex used a stiff skull to eat its prey

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An artist's interpretation of the asteroid impact that wiped out all non-avian dinosaurs. Credit: NASA/Don Davis.
Paleontology

Rocks at asteroid impact site record first day of dinosaur extinction

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Cryodrakon boreas. Credit David Maas
Paleontology

New reptile species was one of largest ever flying animals

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Jurassic crocodile. Artist's impression (credit: Julia Beier)
Paleontology

Jurassic crocodile identified 250 years after fossil find

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