Friday, December 13, 2019
Paleontology

Paleontology

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Paleontology

How ancient microbes created massive ore deposits, set the stage for...

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Microscopic structures created in the lab. Credit: Sean McMahon
Paleontology

Solving fossil mystery could aid quest for ancient life on Mars

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This figure illustrates how inorganic carbon cycles through the mantle more quickly than organic carbon, which contains very little of the isotope carbon-13. Both inorganic and organic carbon are drawn into Earth's mantle at subduction zones (top left).
Paleontology

Study points to one cause for several mysteries linked to breathable...

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Distribution of springtails on termite and ant hosts within ~ 16 Ma old Dominican amber.
Paleontology

16-million-year-old fossil shows springtails hitchhiking on winged termite

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CT scan-generated models of the jaws of Majungasaurus (left), Ceratosaurus (center) and Allosaurus (right), with microscopic views of the interior of their teeth below each model. Stripes running from upper left to lower right in each microscopic image are daily deposited incremental lines, which allow the amount of time it took for a tooth to grow to be reconstructed. Credit: PLOS ONE
Paleontology

Researchers determine dinosaur replaced teeth as fast as sharks

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Reconstruction of Jeholbaatar kielanae. Credit: XU Yong
Paleontology

New Cretaceous mammal fossil sheds light on evolution of middle ear

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A 91-million-year-old fossil shark newly named Cretodus houghtonorum discovered in Kansas
Paleontology

Fossil dig leads to unexpected discovery of 91-million-year-old shark new to...

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The pink arrow points to the predentary and the blue arrow points to the upper portion of the jaw, which has no teeth. Together, they may have been covered by a keratinous beak, and the predentary was most likely mobile Credit: IVPP
Paleontology

New finding on origin of avian predentary in Mesozoic birds

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Mammoth bones are pictured in Tultepec, Mexico in this handout photograph released by Mexico's National Institute of Anthropology (INAH)
Paleontology

Huge trove of mammoth skeletons found in Mexico

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A fossilized mantle of a vampyropod, a relative to the vampire squid. The ink sacis the raised structure in the center, and muscles have a striated appearance. Credit: Rowan Martindale/The University of Texas at Austin Jackson School of Geosciences.
Paleontology

Exceptional fossils may need a breath of air to form

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Peaty sedimentary archive from a palm swamp collected with a Russian corer. (Image:Encarni Montoya)
Paleontology

A new study shows the evolution and changes of the vegetation...

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Opalized Ammonite
Paleontology

Research offers insight into how oldest fossils formed

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Fossilised 20 centimetre long hand claw of theropod discovered at Eric the West site on Victoria’s Otway Coast. Credit: Stephen Poropat/Museums Victoria
Paleontology

Huge-clawed predatory dinosaur discovery in Victoria

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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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