Tuesday, January 28, 2020
Fossils

Fossils

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The skull of the juvenile T. rex, "Jane", was slender with knife-like teeth, having not yet grown big enough to crush bone.
Fossils

Researchers learn more about teen-age T. rex

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Fossil cast of a fin from a juvenile Sauripterus taylori, a late Devonian fish with primitive features of tetrapods.
Fossils

How fish fins evolved just before the transition to land

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

Baby dinosaurs found in Australia

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The specimen will be stripped of the scientific name Mongolarachne chaoyangensis and rechristened as a crayfish
Fossils

A ‘Jackalope’ of an ancient spider fossil deemed a hoax, unmasked...

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

Earth was stressed before dinosaur extinction

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

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
Fossils

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

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A modern-day sea lily in the Marianas region. Credit: (c) NOAA Ocean Research and Exploration
Fossils

480 million year old fossils reveal sea lilies’ ancient roots

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Illustration of the newly described Kupoupou stilwelli by Jacob Blokland, Flinders University. Credit: Jacob Blokland, Flinders University
Fossils

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
Fossils

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

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A representation of a plesiosaur - living reconstruction
Fossils

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

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

Solving fossil mystery could aid quest for ancient life on Mars

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

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
Fossils

Researchers determine dinosaur replaced teeth as fast as sharks

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Reconstruction of Jeholbaatar kielanae. Credit: XU Yong
Fossils

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
Fossils

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
Fossils

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)
Fossils

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.
Fossils

Exceptional fossils may need a breath of air to form

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Opalized Ammonite
Fossils

Research offers insight into how oldest fossils formed

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