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Keyword: maryschweitzer

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  • Bones Of Contention: Dinosaur Cells Survived Millions Of Years Trapped In Bone

    08/15/2015 8:58:12 AM PDT · by JimSEA · 46 replies
    Science 2.0 ^ | Mary Schwietzer
    Twenty years ago Mary Schweitzer found herself the closest that anyone has ever been to a living dinosaur. As she examined a thin slice of a T. Rex bone fragment under a microscope, she realized she was looking at what appeared to be preserved red blood cells- cells which had no place in a 65 million year old fossil. It was the first time that anyone had found evidence that biological material could survive the passage of millions of years and still retain its molecular structure, challenging one of the central beliefs of paleontologists. Proving that what she was seeing...
  • Signs of ancient cells and proteins found in dinosaur fossils

    06/15/2015 11:56:01 AM PDT · by SeekAndFind · 16 replies
    Science ^ | 06/15/2015 | By Robert F. Service
    The cupboards of the Natural History Museum in London hold spectacular dinosaur fossils, from 10-centimeter, serrated Tyrannosaurus rex teeth to a 4-meter-long hadrosaur tail. Now, researchers are reporting another spectacular find, buried in eight nondescript fossils from the same collection: what appear to be ancient red blood cells and fibers of ancient protein. Using new methods to peer deep inside fossils, the study in this week’s issue of Nature Communications backs up previous, controversial reports of such structures in dinosaur bones. It also suggests that soft tissue preservation may be more common than anyone had guessed. “It’s encouraging,” especially because...
  • Fibres and cellular structures preserved in 75-million–year-old dinosaur specimens

    06/10/2015 2:56:39 PM PDT · by Sopater · 42 replies
    Nature Communications ^ | 09 June 2015 | Sergio Bertazzo, Susannah C. R. Maidment, Charalambos Kallepitis, Sarah Fearn, Molly M. Stevens
    Abstract Exceptionally preserved organic remains are known throughout the vertebrate fossil record, and recently, evidence has emerged that such soft tissue might contain original components. We examined samples from eight Cretaceous dinosaur bones using nano-analytical techniques; the bones are not exceptionally preserved and show no external indication of soft tissue. In one sample, we observe structures consistent with endogenous collagen fibre remains displaying ~67 nm banding, indicating the possible preservation of the original quaternary structure. Using ToF-SIMS, we identify amino-acid fragments typical of collagen fibrils. Furthermore, we observe structures consistent with putative erythrocyte remains that exhibit mass spectra similar to emu...
  • Scientists just found soft tissue inside a dinosaur fossil. Here's why that's exciting.

    06/09/2015 12:22:24 PM PDT · by ETL · 167 replies ^ | June 9, 2015 | Joseph Stromberg
    Dinosaur fossils, it was long thought, are simple objects. The fossilization process leaves the overall shape of a dinosaur's bones intact, but all the microscopic structures inside them — the blood cells, connective fibers, and other sorts of soft tissue — inevitably decay over time. The photo above, from a new study published today in Nature Communications and led by Sergio Bertazzo of Imperial College London, shows an extremely zoomed-in view of a 75-million-year-old theropod claw, taken from the London Natural History Museum's collection. When researchers scraped tiny pieces off the fossil and looked at them under an electron microscope,...
  • Rare Discovery: Fossilized Bone Marrow is 10 Million Years Old

    07/26/2006 9:11:18 AM PDT · by Sopater · 78 replies · 1,673+ views
    Live Science ^ | 24 July 2006 | LiveScience Staff Writer
    Scientists have extracted intact bone marrow from the fossilized remains of 10-million-year-old frogs and salamanders. The finding, detailed in the August issue of the journal Geology, is the first case of fossilized bone marrow ever to be discovered and only the second report of fossilized soft tissue. In June of 2005, scientists announced they had found preserved red blood cells from a Tyrannosaurus rex leg bone. "It pushes back the boundary for how far [soft tissue] fossilization can go," said study leader Maria McNamara of University College Dublin in Ireland. Why it matters Preserved soft tissue could provide insight into...
  • Tissue Find Offers New Look Into Dinosaurs' Lives

    03/24/2005 5:31:46 PM PST · by wagglebee · 25 replies · 971+ views
    New York Times ^ | 3/24/05 | JOHN NOBLE WILFORD
    Alive as dinosaurs may seem to children, knowledge of them as living creatures is limited almost entirely to what can be learned from bones that have long since turned to stony fossils. Their soft tissues, when rarely recovered, have lost their original revealing form. A 70-million-year-old Tyrannosaurus rex recently discovered in Montana, scientists reported today, has apparently yielded the improbable: soft tissues, including blood vessels and possibly cells, that "retain some of their original flexibility, elasticity and resilience." In a paper being published on Friday in the journal Science, the discovery team said that the remarkable preservation of the tissue...
  • Preserved flesh of 2-million-year-old human ancestor found?

    09/26/2011 7:20:26 PM PDT · by SunkenCiv · 56 replies
    Popular Archaeology ^ | Wednesday, September 21, 2011 | Dan McLerran
    His jaw must have dropped when he examined the material before him. It was a rare find. So rare, in fact, that, if what he was looking at was really what he thought it could be, it would be the first and only evidence of soft body tissue from an early hominin ever discovered.......soft tissue from an early (possible) pre-human ancestor nearly 2 million years old. The find was part of the remains uncovered by paleoanthropologist Lee Berger of the University of the Witwatersrand and his colleagues when they discovered fossils of Australopithecus sediba, a possible precursor to our earliest...
  • Paleontologists Target Montana Dinosaur Museum

    11/09/2009 9:18:40 AM PST · by GodGunsGuts · 56 replies · 1,732+ views
    ICR News ^ | November 9, 2009 | Brian Thomas, M.S.
    The Glendive Dinosaur and Fossil Museum, which opened its doors earlier this year, boasts this country’s second-largest set of displayed dinosaur remains. The record is still held by the Museum of the Rockies in Bozeman. Both are located in Montana near a rich cache of world-famous fossils. The Glendive Museum stands apart, however, in that it presents dinosaurs as having been drowned and their remains preserved in the massive worldwide flood described in the Bible. This view has prompted reactionary comments from mainstream scientists ...
  • Dinosaur's soft tissue recovered (evolution)

    03/28/2005 6:50:09 PM PST · by johnnyb_61820 · 103 replies · 2,221+ views
    The Seattle Times ^ | 3/25/2005 | Randolph E. Schmid
    For more than a century, the study of dinosaurs has been limited to fossilized bones. Now, researchers have recovered 70-million-year-old soft tissue, including what may be blood vessels and cells, from a Tyrannosaurus rex. If scientists can isolate proteins from the material, they may be able to learn new details of how dinosaurs lived, said lead researcher Mary Higby Schweitzer of North Carolina State University.
  • Soft tissue in fossils still mysterious: Purported dinosaur soft tissue may be modern biofilms

    08/01/2008 9:48:00 AM PDT · by SunkenCiv · 12 replies · 214+ views
    Science News ^ | July 29th, 2008 | Sid Perkins
    Three years ago, a team of scientists rocked the paleontology world by reporting that they'd recovered flexible tissue resembling blood vessels from a 68-million-year-old dinosaur fossil... Subsequent analyses by many of the same scientists -- including Mary H. Schweitzer, a paleontologist at North Carolina State University in Raleigh -- indicated that the fossil contained small bits of collagen, a fiber-forming protein that's the largest non-mineral component of bone... Schweitzer and her colleagues, of course, take issue with the new findings. "There really isn't a lot new here, although I really welcome that someone is attempting to look at and repeat...
  • Amazing find of dinosaur 'mummy'

    12/11/2007 6:25:53 PM PST · by Fred Nerks · 41 replies · 602+ views
    BBC Science-Nature ^ | December 3, 2207 | U/A
    Amazing find of dinosaur 'mummy' Scientists now think these dinosaurs were more muscular than previously thought Fossil hunters have uncovered the remains of a dinosaur that has much of its soft tissue still intact. Skin, muscle, tendons and other tissue that rarely survive fossilisation have all been preserved in the specimen unearthed in North Dakota, US. The 67 million-year-old dinosaur is one of the duck-billed hadrosaur group. The preservation allowed scientists to estimate that it was more muscular than thought, perhaps giving it the ability to outrun predators like T. rex. The researchers propose that the dinosaur's rump was 25%...
  • Fossil Backs Theory Linking Dinosaurs To Birds

    05/06/2009 10:52:37 AM PDT · by steve-b · 33 replies · 1,200+ views
    San Francisco Chronicle ^ | 5/4/09 | David Perlman
    Deep inside the single leg bone of an 80-million-year-old duck-billed dinosaur, scientists have found a hoard of proteins and blood cells providing the first clear biochemical evidence that dinosaurs are indeed the ancestors of modern birds - linked by evolution. Until now those links had been based mainly on physical evidence - on feathers from dinosaur fossils, on their fossil eggs, on their fossilized birdlike nestlings and on the close resemblance of dinosaurs and birds like the famed "flying dinosaur" called archaeopteryx. Now the same team of scientists, which found similar biological material in a 68-million-year-old Tyrannosaurus rex two years...
  • Dinosaur Soft Tissue Finally Makes News

    12/02/2009 8:28:11 AM PST · by GodGunsGuts · 156 replies · 3,654+ views
    ICR News ^ | December 2, 2009 | Brian Thomas, M.S.
    Although creation-based organizations have reported for over a decade on the technical scientific journal articles published about soft tissue found inside dinosaur remains, mainstream media outlets have largely been silent on the subject. But a recent segment that aired on CBS’s 60 Minutes finally broke the news to a broader audience. The soft tissue issue may be gaining more traction, and even “may be changing the whole dino ballgame,” according to correspondent Lesley Stahl.[1] The program is currently viewable online at the CBS website. In a field test demonstration to determine whether a dinosaur fossil was real bone, and not...
  • Fossil Strengthens Dinosaur-Bird Link

    02/15/2002 6:20:27 PM PST · by green team 1999 · 80 replies · 354+ views
    discovery online,reuters ^ | feb-14-2002 | reuters
    Fossil Strengthens Dinosaur-Bird Link Feb. 14 — A 130 million-year-old newly discovered fossil of a small meat-eating dinosaur found in China is further proof of the evolutionary link between dinosaurs and birds, scientists say. "This animal is not a direct ancestor to birds but it is a very close cousin. It is from a group called troodontids which is closely related to birds," Peter Makovicky of the Field Museum in Chicago said on Wednesday. The new dinosaur, called Sinovenator changii, was probably feathered and is almost the same age as the oldest known bird Archaeopteryx. "The similarities in the skeleton ...
  • Scientists Broom Challenging Discoveries Beneath 'Contamination' Rug

    05/15/2013 11:30:12 AM PDT · by fishtank · 5 replies
    Institute for Creation Research ^ | Article posted on May 15, 2013. | Brian Thomas
    Scientists Broom Challenging Discoveries Beneath 'Contamination' Rug by Brian Thomas, M.S. * Recent years have witnessed many revolutionary discoveries of original tissues in fossils. Each new find challenges the widely held notion that fossils formed millions of years ago. After all, lab tests repeatedly show proteins and other biological materials lasting no longer than hundreds of thousands of years—millions are out of the question. As a result, these fossils clearly look like recent deposits. What tactics do evolutionists use to accommodate these original organic remains into their entrenched belief in deep time? One tactic is to simply turn a blind...
  • Best ever find of soft tissue (muscle and blood) in a fossil (evos claim it is 18 mya!!!)

    11/11/2009 9:29:38 AM PST · by GodGunsGuts · 252 replies · 3,446+ views
    CMI ^ | November 11, 2009 | Carl Wieland
    A salamander allegedly “18 million years old” is the latest fossil to produce astonishingly well preserved soft tissue. This time, it’s muscle tissue, and it is supposedly the most pristine example yet. Background—the “dinosaur connection”...
  • Triceratops Horn Soft Tissue Foils 'Biofilm' Explanation

    04/02/2013 8:55:44 AM PDT · by fishtank · 62 replies
    Institute for Creation Research ^ | 3-18-2013 | Brian Thomas
    Triceratops Horn Soft Tissue Foils 'Biofilm' Explanation by Brian Thomas, M.S. * Decades ago, when researchers began publishing their discoveries of transparent, floppy tissue with recognizable intact cells inside dinosaur bones, plenty of shocked evolutionists disputed their results. After all, nobody knew—and still nobody knows—a process whereby flesh and bones could persist over the eons that evolutionists insist dinosaur fossils have endured. One popular pushback asserts that the soft tissues are not from the dinosaurs at all, but from bacteria that somehow infiltrated their bones and built biofilms in the same shapes as dinosaur tissues and cells. A new report...
  • Secrets of the dinosaur mummy

    12/04/2007 7:22:23 AM PST · by Diamond · 104 replies · 501+ views
    The Australian ^ | December 04, 2007 | Nicola Berkovic
    MOST of what we know about dinosaurs has been pieced together from fossilised bones and teeth. But the unearthing of a mummified dinosaur in the US, with preserved skin and apparent soft tissue, has the potential to unlock biological secrets millions of years old.The remains of the duck-billed hadrosaur are in such good condition - with its skin almost entirely intact - that it has already revealed the creature ran faster and was far more muscular than previously thought. But the remains could offer an even greater insight into the evolution and biology of dinosaurs. [snip]
  • "Mummified" Dinosaur Discovered In Montana (pics included)

    10/11/2002 1:04:43 AM PDT · by chance33_98 · 219 replies · 6,076+ views
    "Mummified" Dinosaur Discovered In Montana Hillary Mayell for National Geographic News October 10, 2002 Leonardo, a mummified, 77-million-year-old duck-billed dinosaur was only about three or four years old when he died, but he's proving to be a bonanza for paleontologists today. His fossilized skeleton is covered in soft tissue—skin, scales, muscle, foot pads—and even his last meal is in his stomach. An onsite restoration drawing of how "Leonardo" may have looked before burial based on observations and measurements of the specimen. The drawing was done by paleolife artist Greg Wenzel. Art copyright Judith River Dinosaur Institute "For paleontologists, if...
  • #3 Soft Tissue in Fossils10 Best Evidences From Science That Confirm a Young Earth

    04/29/2013 8:13:56 AM PDT · by kimtom · 176 replies ^ | September 11, 2012 | David Menton
    "... A recent discovery by Dr. Mary Schweitzer, however, has given reason for all but committed evolutionists to question this assumption. Bone slices from the fossilized thigh bone (femur) of a Tyrannosaurus rex found in the Hell Creek formation of Montana were studied under the microscope by Schweitzer. To her amazement, the bone showed what appeared to be blood vessels of the type seen in bone and marrow, and these contained what appeared to be red blood cells with nuclei, typical of reptiles and birds (but not mammals). The vessels even appeared to be lined with specialized endothelial cells found...