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Keyword: mesozoic

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  • 125 million-year-old fossil of giant venomous scorpion that lived alongside dinosaurs discovered in China

    03/08/2025 8:36:51 PM PST · by SunkenCiv · 30 replies
    Live Science ^ | March 4, 2025 | Skyler Ware
    Extremely rare fossil of an ancient scorpion unearthed at China's Jehol Biota. The scorpion would've been a key species in the Cretaceous ecosystem, scientists say.A known treasure trove of Early Cretaceous fossils has turned up a never-before-seen species of scorpion that lived around 125 million years ago.The venomous scorpion was larger than many ancient -- and modern -- scorpion species. Researchers believe it would’ve been a key species in the food chain, gobbling up spiders, lizards and even small mammals that lived in its ancient ecosystem.It is just the fourth terrestrial scorpion fossil to be found in China and the...
  • Paleontology Shaken: Organic Molecules Found in 66-Million-Year-Old Dinosaur Bones

    02/13/2025 12:05:10 PM PST · by Red Badger · 46 replies
    Scitech Daily ^ | February 11, 2025 | University of Liverpool
    Close up of the hip bone of an Edmontosaurus. Credit: University of Liverpool Liverpool researchers’ discovery of collagen in fossilized bones could provide new insights into dinosaurs. For years, scientists widely believed that the fossilization process destroyed all original organic molecules, leaving fossils devoid of their original biological material. However, a groundbreaking study led by the University of Liverpool has provided strong evidence that Mesozoic fossils, including dinosaur bones and teeth, still contain preserved organic materials. Using advanced mass spectrometry and other analytical techniques, researchers detected remnants of collagen in the hip bone of an Edmontosaurus, a duck-billed dinosaur. This...
  • 200-Year-Old South African Cave Painting May Depict an Animal Extinct for Over 200 Million Years

    09/19/2024 12:27:55 PM PDT · by Red Badger · 25 replies
    The Debrief ^ | September 19, 2024 | Christopher Plain
    A 200-year-old South African cave painting made by the region’s first inhabitants, the San people, appears to depict an animal that has been extinct for over 200 million years. A long-bodied animal with downward-turned tusks, the warm-blooded, lizard-like creature called a dicynodont (two-toothed dog) roamed the area before the first dinosaur appeared and died off at the end of the Triassic. If the artwork from the cave’s Horned Serpent panel at La Belle France (Free State Province, South Africa) is of this extinct species, its creation would predate the first known scientific classification of a dicynodont by at least a...
  • The World's Oldest "Living Fossil" Is Shaking Up Conventional Evolutionary Theories

    09/16/2024 6:08:42 AM PDT · by SunkenCiv · 43 replies
    Scitech Daily ^ | September 12, 2024 | Flinders University
    Today, the coelacanth is a fascinating deep-sea fish that lives off the coasts of eastern Africa and Indonesia and can reach up to 2m in length. They are "lobe-finned" fish, which means they have robust bones in their fins not too dissimilar to the bones in our own arms, and are thus considered to be more closely related to lungfish and tetrapods (the back-boned animals with arms and legs such as frogs, emus, and mice) than most other fishes.Over the past 410 million years, more than more than 175 species of coelacanths have been discovered across the globe. During the...
  • The Day the Mesozoic Died: The Asteroid That Killed the Dinosaurs — HHMI BioInteractive Video [alas, no transcript]

    09/18/2023 9:36:34 AM PDT · by SunkenCiv · 27 replies
    YouTube ^ | August 26, 2014 | biointeractive
    Ever wonder why the dinosaurs disappeared? HHMI BioInteractive investigates the cause of the mass extinction at the end of the Cretaceous period—and the clues come from paleontology, chemistry, physics, and biology.This three-act film tells the story of the extraordinary detective work that solved one of the greatest scientific mysteries of all time. Explore the fossil evidence of these prehistoric animals, and other organisms that went extinct, through this lively educational video.The Day the Mesozoic Died: The Asteroid That Killed the Dinosaurs — HHMI BioInteractive Video | 33:50biointeractive | 237K subscribers | 14,149,800 views | August 26, 2014
  • Rare Dinosaur Fossil Found With Perfectly Preserved Final Meal Inside

    12/27/2022 12:33:57 PM PST · by SunkenCiv · 50 replies
    Nature via Science Alert ^ | December 23, 2022 | Fiona MacDonald
    Around 120 million years ago, four-winged dinosaurs roughly the size of crows called Microraptors stalked the ancient woodlands of what is now China.While researchers have studied several Microraptor specimens, there's still a lot we don't know about these feathered bird-like creatures – including what and how they ate.Now an incredibly rare fossil has revealed the preserved final meal of one individual: and unexpectedly, it was a mammal...The first Microraptor fossil was found in Liaoning, China, in 2000. There are three known species, which lived in the early Cretacious period, and the fossil in question belongs to Microraptor zhaoianus...The Microraptors were...
  • New species of extinct animals found in Sahara

    12/16/2008 5:16:16 PM PST · by JoeProBono · 21 replies · 756+ views
    British and Moroccan scientists said Tuesday they had found the remains of two new species of extinct animals in the Saharan desert, describing the find as one of the most important of the past 50 years. The team of paleontologists said they had unearthed a new species of pterosaur, a flying reptile from the Mesozoic era, and a new type of sauropod, a giant four-legged herbivore from the Jurassic period.
  • The oldest dinosaur precursor from South America is discovered in Brazil

    03/04/2022 8:57:39 AM PST · by LibWhacker · 18 replies
    Phys.org ^ | 3/4/2022 | by Universidade Federal de Santa Maria
    Credit: skeleton by Maurício Silva Garcia; photo and composition by Rodrigo Temp MüllerPaleontologists from the Universidade Federal de Santa Maria (UFSM) published a study in the scientific periodic Gondwana Research describing the new fossilized specimen.The oldest dinosaurs have been excavated from fossiliferous layers with approximately 233 million years from Brazil and Argentina. Furthermore, some older Argentinean deposits revealed remains of dinosaur precursors, which provide crucial data on the origin of "true" dinosaurs. These creatures lived approximately 236 million years ago and were small, with no more than 1 meter in length.Whereas the fossil record of dinosaur precursors is relatively...
  • Modern snakes evolved from a few survivors of dino-killing asteroid

    09/18/2021 10:49:02 AM PDT · by SunkenCiv · 45 replies
    Heritage Daily ^ | September 15, 2021 | University of Bath
    The study, led by scientists at the University of Bath and including collaborators from Bristol, Cambridge and Germany, used fossils and analysed genetic differences between modern snakes to reconstruct snake evolution. The analyses helped to pinpoint the time that modern snakes evolved.Their results show that all living snakes trace back to just a handful of species that survived the asteroid impact 66 million years ago, the same extinction that wiped out the dinosaurs.The authors argue that the ability of snakes to shelter underground and go for long periods without food helped them survive the destructive effects of the impact. In...
  • Scientists Find Fossilized Ancestor of All Scaled Reptiles, And It's Absolutely Tiny

    08/29/2021 7:49:08 PM PDT · by SunkenCiv · 17 replies
    Science Alert ^ | August 27, 2021 | Clare Watson, Nature
    Lepidosaurs are scaled reptiles such as lizards, snakes, and New Zealand's tuatara, which together represent the most diverse group of land-living vertebrates alive today. Yet little is known about their early origins compared to the other arms of reptilian evolution which produced crocodiles, birds, and turtles... The fossil, found in Ischigualasto Provincial Park in northwest Argentina, is about 11 million years younger than the oldest known lepidosaurs from Europe, but one of the best-preserved specimens of its kind, which means the team can have more confidence in their analyses... It's a lucky find, especially considering the origins of lepidosaurs have...
  • Spectacular Fossil Shows a 120-Million-Year-Old Bird With a Highly Impractical Tail

    09/17/2021 12:25:28 PM PDT · by Red Badger · 28 replies
    https://www.sciencealert.com ^ | 17 September 2021 | CARLY CASSELLA
    Nothing quite says 'look at me!' like an extravagant set of tail feathers. Plenty of modern birds sacrifice agility for a chance to grab attention, but examples among relatives in the fossil record have been harder to come by. Scientists have now described the remains of a 120-million-year-old feathered dinosaur roughly the size of a bluejay, with an extremely long and extravagant behind. The remarkably-detailed fossil was found in northeastern China and named Yuanchuavis (Yuanchuavis kompsosoura) after a phoenix-like bird in Chinese mythology. It's the first time a bird-like fossil from the Mesozoic era has been discovered with such a...
  • Researchers Unearth the Past to Solve Ancient Mystery

    02/11/2017 9:17:58 PM PST · by nickcarraway · 36 replies
    NBC DFW ^ | Feb 11, 2017 | Kevin Cokely
    Several complete skeletons hint at sudden, mass extinctionResearchers from the Whiteside Museum of Natural History in Seymour are unraveling an ancient mystery. "This is life," said Coleton Caldwell, assistant director of the museum. "The first time life is living on land, solely on land, and it's still trying to figure things out, you know? What works, what doesn't work? So it's just really, really, really unique." Working southwest of Wichita Falls, near the shore of Lake Kemp in Baylor County, the researchers have uncovered the skeletal remains of seven dimetrodons. The mammal-like finback reptiles roamed parts of North Texas 60...
  • Paleontologists uncover remains of a 33-FOOT long megaraptor that lived 70 million years ago and would have been one of the last carnivorous dinosaurs to roam the Earth

    05/20/2020 11:56:23 AM PDT · by C19fan · 49 replies
    UK Daily Mail ^ | May 20, 2020 | Stacy Liberatore
    Paleontologists have uncovered the remains of megaraptor that lived 70 million years ago, making it one of the last carnivorous dinosaur to roam the Earth. Discovered in Argentina, the team found vertebrae, ribs and part of what would have been the dinosaur's chest and shoulder girdle. After a further analysis, they determined the creature was approximately 33 feet in length -the largest megaraptor found to date. Unlike the Tyrannosaurus rex, this lethal dinosaur had extremely long, muscular arms with massive claws at the end that were used to attack prey.
  • Dinosaur fossils kept secret for years show the day of killer asteroid

    04/01/2019 7:03:20 AM PDT · by ETL · 65 replies
    FoxNews.com ^ | April 1, 2019 | Chris Ciaccia | Fox News
    The researchers say they found evidence in North Dakota of the asteroid hit in Mexico, including fish with hot glass in their gills from flaming debris that showered back down on Earth. They also reported the discovery of charred trees, evidence of an inland tsunami and melted amber. Additionally, University of Amsterdam professor Jan Smit said he and his colleagues found footsteps from dinosaurs moments before they met their untimely death. Smit said the footprints — one from a plant-eating hadrosaur and the other of a meat eater, maybe a small Tyrannosaurus Rex — is "definite proof that the dinosaurs...
  • 66 million-year-old deathbed linked to dinosaur-killing meteor

    03/29/2019 10:25:37 PM PDT · by LibWhacker · 64 replies
    UC Berkeley News ^ | 3/29/19 | Robert Sanders
    66 million-year-old deathbed linked to dinosaur-killing meteor By Robert Sanders, Media relations| March 29, 2019March 29, 2019 Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to email this to a friend (Opens in new window)Click to print (Opens in new window) A meteor impact 66 million years ago generated a tsunami-like wave in an inland sea that killed and buried fish, mammals, insects and a dinosaur, the first victims of Earth’s last mass extinction event. The death scene from within an hour of...
  • Frozen in time Ancient insects trapped in amber at the precise moment they hatched from their eggs

    12/26/2018 8:57:45 AM PST · by ETL · 21 replies
    The Sun ^ | Dec 20, 2018 | Harry Pettit, Senior Digital Technology and Science Reporter
    The rare fossils are helping scientists understand how ancient bugs hatched from their eggs The insects became trapped in the sticky resin 130million years ago, shortly after bursting through the shell – and scientists aren't sure how the creatures met their grisly fate. The amazing fossils are helping researchers understand how ancient bugs hatched and took their first steps in the ancient world. Like many modern animals, the insects used a tool known as an egg-burster to smash through the egg shell. "The structures that make hatching possible tend to disappear quickly once egg-laying animals hatch, so obtaining fossil evidence...
  • Study shows huge armored dinosaurs battled overheating with nasal air-conditioning

    12/19/2018 11:52:43 AM PST · by ETL · 16 replies
    Phys.org ^ | Dec 19, 2018 | Ohio University
    Being a gigantic dinosaur presented some challenges, such as overheating in the Cretaceous sun and frying your brain. Researchers from Ohio University and NYITCOM at Arkansas State show in a new article in PLOS ONE that the heavily armored, club-tailed ankylosaurs had a built-in air conditioner in their snouts. "The huge bodies that we see in most dinosaurs must have gotten really hot in warm Mesozoic climates," said Jason Bourke, Assistant Professor at the New York Institute of Technology College of Osteopathic Medicine at Arkansas State and lead author of the study. "Brains don't like that, so we wanted to...
  • 99 million-year-old beetle found trapped in amber

    11/02/2018 7:42:10 AM PDT · by ETL · 38 replies
    FoxNews.com/Science ^ | Oct 31, 2018 | Chris Ciaccia | Fox News
    A 99-million-year-old beetle has been found, trapped in amber, stunning scientists. The new beetle, known as Propiestus archaicus, was found in Hukawng Valley in the northern part Myanmar, near China's southern border. P. archaicus is a distant relative of today's rove beetles, found in South America and the southern part of Arizona, revealing that the continents shifted rapidly millions of years ago to what we now see today. "This is a very rare find," Shuhei Yamamoto said, a Field Museum researcher and lead author of a paper in the Journal of Systematic Palaeontology, said in a statement. Thanks to the...
  • 99-Million-Year-Old Snake Hatchling Found Encased in Burmese Amber

    08/12/2018 9:05:43 AM PDT · by ETL · 23 replies
    Sci-News.com ^ | Jul 19, 2018 | News Staff / Source
    The newly-reported specimen was obtained from an amber deposit in the Angbamo area in Myanmar’s Kachin province.The fossil is a 1.6-inch (4.75 cm) long postcranial skeleton made up of 97 vertebrae; the snake’s head is missing. It dates from the Late Cretaceous epoch, approximately 99 million years ago.“This snake, named Xiaophis myanmarensis, is linked to ancient snakes from Argentina, Africa, India and Australia,” said University of Alberta’s Professor Michael Caldwell.“It is an important — and until now, missing — component of understanding snake evolution from southern continents, that is Gondwana, in the mid-Mesozoic.” “At 99 million years old, it dates...
  • Rare dinosaur discovery in EGYPT could signal more finds

    02/06/2018 9:05:27 AM PST · by Red Badger · 22 replies
    AP ^ | 02/06/2018 | Staff
    MANSOURA, Egypt (AP) — A skeleton has been unearthed in Egypt’s Western Desert, whose ancient sands have long helped preserve remains, but unlike most finds this one isn’t a mummy — it’s a dinosaur. Researchers from Mansoura University in the country’s Nile Delta discovered the new species of long-necked herbivore, which is around the size of a city bus, and it could be just the tip of the sand dune for other desert dinosaur discoveries. “As in any ecosystem, if we went to the jungle we’ll find a lion and a giraffe. So we found the giraffe, where’s the lion?”...