Paleontology

A pebble-sized object found in by a U. The remarkable discovery, dating to the Cretaceous Period million years ago, offers insight into dinosaur evolution, behavior, intelligence and brain structure. Scanning electron microscope analysis of the fossil reveals it is a fossilized portion of a brain that belonged to an Iguanodon-like dinosaur. Iguanodon, meaning ” Iguana Tooth,” was a large, plant-eating dinosaur that lived during the Early Cretaceous. It could grow up to 43 feet long and possibly more, according to some estimates. David Norman, a University of Cambridge paleontologist, described the fossil’s surface as showing “areas of encrusted material that has, under microscopic examination, a curious and highly unusual texture, rather like wrinkled fabric to the naked eye. Norman said that “wrinkled fabric” is made up of several layers that appear very similar to the meninges – tissue that surround the brain in the brain cavity. The layers of the meninges protect and support the brain’s softer tissues. Norman and his team believe that the fossil contains some of the meninges that surrounded the dinosaur’s brain, as well as strands of collagen and blood vessels. Structures that could represent tissues from the brain cortex – its outer layer of neural tissue – interwoven with delicate capillaries, also appear to be present.

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The Field Museum fuels a journey of discovery across time to enable solutions for a brighter future rich in nature and culture. You may know SUE as the hilarious, pun-loving dinosaur turning Twitter into a personal smorgasbord. Or you might treasure that selfie you snapped with this fearsome fossil looming overhead.

TIME ○ PLATE TECTONICS ○ RADIOMETRIC DATING References Alvarez, Evaluation of dinosaur brain size requires estimation of both brain size and.

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New ancient genomic research reveals information about human history in China. Newly released genomes from Neolithic East Asia have unveiled a missing piece of human…. Research finds leg length gave giant predatory dinosaurs the advantage of efficiency, not speed as previously thought. A new University of Wisconsin Oshkosh analysis of raptor teeth published in the….

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All rights reserved. Illinois-born Stephen Brusatte is one of the stars of modern paleontology. A former National Geographic grantee, he has discovered 10 new dinosaur species. He has also led groundbreaking scientific studies that have rewritten the history of these magnificent creatures which, thanks to Hollywood and countless children stories, haunt our imaginations today like never before.

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Fossil dating is a lot like eating a delicious ice cream cake. Well, sort of. Plus: We talk to a scientist who studied one of the coolest fossils discovered recently: a dinosaur tail trapped in amber, complete with feathers! Photos of the dinosaur tail in amber! The section of a dinosaur tail with feathers running through the amber piece. Royal Saskatchewan Museum R. McKellar Tail feathers examined with dark field lighting, to highlight translucent structures of the barbs and barbules, as well as lack of rachis.

McKellar An illustration of a small coelurosaur. Shenna Wang. Play Play Episode. Tail feathers examined with dark field lighting, to highlight translucent structures of the barbs and barbules, as well as lack of rachis. Sign Up for Fan Club. Julie’s Library.

Dinosaur Brain Fossil Revealed for the First Time

February 22, brains , Curiosity Daily Episodes , food. Learn about the evolutionary reason why love is blind; the weird history of that pink color in your bathtub; and how to form new habits. In this podcast, Cody Gough […]. February 14, astronomy , Curiosity Daily Episodes , history , productivity. Learn about how you can beat stress with some help from your significant other; the forgotten astronomer behind the Big Bang Theory; and a hundred-year-old productivity secret.

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Brachiosaurus walked on four legs and, like the other Brachiosaurids and unlike most dinosaurs, its front legs were longer than its hind legs. These unusual front legs together with its very long neck gave Brachiosaurus a giraffe-like stance and great height, up to feet m tall. Brachiosaurus was about 85 feet 26 m long, and weighed about tons tonnes. It had a claw on the first toe of each front foot and claws on the first three toes of each rear foot each foot had five toes with fleshy pads.

Like other Brachiosaurids, it had chisel-like teeth, its nostrils were on the top of its head, and it had large nasal openings indicating that it may have had a good sense of smell. Brachiosaurus had 26 teeth on its top jaw and 26 on the bottom for a total of 52 teeth towards the front of the mouth. DIET Brachiosaurus was an herbivore, a plant eater. It probably ate the tops of tall trees with its large spatulate chisel-shaped teeth.

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Pachycephalosaurus

A team of international scientists has found the oldest record of life on Earth in Northern Quebec, dating back at least 3. Our solar system formed about 4. The discovery was made in the Nuvvuagittuq Greenstone Belt in Northern Quebec in rock known as “banded iron formations. Johnathan O’Neil, assistant professor at the University of Ottawa’s Department of Earth and Environmental Sciences, holds a sample of rock taken from the area where he and the research team discovered microfossils of the oldest life forms ever found on Earth.

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On any given day researchers and students might be dissecting a giraffe or an ostrich, measuring the force a Barn Owl produces when it takes off to pursue prey, or using X-ray video to analyze the wobbling gait of broiler chickens. Heers takes the birds to her station along one wall of the lab and pops them into an open cardboard box turned sideways. As the chicks huddle together, looking confused and a little anxious, Heers trains two high-speed video cameras on the box and boots up a computer on a table a few feet away.

Heers, 31, is a petite woman with a head full of dark curls. She has been watching birds for much of her life. But as a postdoctoral researcher studying avian evolution, she sees them for what most paleontologists think they really are: living dinosaurs, the one surviving lineage of extinct carnivorous beasts like Tyrannosaurus rex.

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First ever fossilised dinosaur brain reveals bird, crocodile link. Working with the University of Western Australia, British 70s used scanning electron microscope.

When paleontologist Mary Schweitzer found soft tissue in a Tyrannosaurus rex fossil , her discovery raised an obvious question — how the tissue could have survived so long? The bone was 68 million years old, and conventional wisdom about fossilization is that all soft tissue, from blood to brains , decomposes. Only hard parts, like bones and teeth, can become fossils. But for some people, the discovery raised a different question. How do scientists know the bones are really 68 million years old?

Today’s knowledge of fossil ages comes primarily from radiometric dating , also known as radioactive dating. Radiometric dating relies on the properties of isotopes.

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Scientists brain now determined the clump was girl the fossilized brain tissue of a large leaf-eating dinosaur, possibly from a species thought to the Iguanodon. Paleontologists just found a 2,pound T. The dinosaur fossil shows distinct similarities to the brains of modern-day crocodiles and birds, the scientists found. The discovery may shed light on how did reveals of dinosaurs brains other ancient creatures evolved over millions of years, an area that has long worst researchers.

Brain tissue, unlike durable bones and teeth, is often one of the first parts of the body to decay.

Radiometric dating is a process used by many archaeologists to determine the age of fossils This should help us understand how dinosaur brains worked.

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