Saturday, February 22, 2020
Dinosaur

Dinosaur

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Artist’s depiction of an ornithopod dinosaur tending its nest.
Dinosaur

Baby dinosaurs found in Australia

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A fossilized snail shell, ready to be analyzed in the laboratory
Dinosaur

Earth was stressed before dinosaur extinction

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An intimidating sight: Asfaltovenator vialidadi. Source: Gabriel Lio
Dinosaur

Experiments in evolution

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This slab of sandstone has been on display since 1896, showing off the scaly footprints of a prosauropod dinosaur. Scientists only recently realized that the deep grooves on the left may be the track of a sailing stone. Credit: Lull, R.S., 1915
Dinosaur

Sailing stone track discovered ‘hiding in plain sight’ in dinosaur fossil

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Illustration of the newly described Kupoupou stilwelli by Jacob Blokland, Flinders University. Credit: Jacob Blokland, Flinders University
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When penguins ruled after dinosaurs died

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New research is shedding light on how and where ancient flying reptiles called pterosaurs lived. Credit: Julius Csotonyi
Dinosaur

95-million-year-old fossil reveals new group of pterosaurs

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A representation of a plesiosaur - living reconstruction
Dinosaur

Divers of the past : Plesiosaur – Why did the size...

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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
Dinosaur

Researchers determine dinosaur replaced teeth as fast as sharks

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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
Dinosaur

Huge-clawed predatory dinosaur discovery in Victoria

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

Jurassic dinosaurs trotted between Africa and Europe

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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.
Dinosaur

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.
Dinosaur

Paleontologists discover complete Saurornitholestes langstoni specimen

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

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

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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.
Dinosaur

Did mosasaurs do the breast stroke?

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Pterosaur
Dinosaur

New Australian pterosaur may have survived the longest

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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
Dinosaur

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.
Dinosaur

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.
Dinosaur

Rocks at asteroid impact site record first day of dinosaur extinction

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A reconstruction of Kamuysaurus japonicus. Credit: Kobayashi Y., et al, Scientific Reports, September 5, 2019
Dinosaur

A new duck-billed dinosaur, Kamuysaurus japonicus, identified

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A graphic thermal image of a T. rex with its dorsotemporal fenestra glowing on the skull. Illustration courtesy of Brian Engh.
Dinosaur

T. rex had an air conditioner in its head

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