Dinosaur soft tissue carbon dating
- How old are carbon-14-dated dinosaur bones?
- Who discovered soft tissue in dinosaur bones?
- Did Mary Schweitzer discover 65 million year old dinosaur fossils?
- Why was collagen found in a dinosaur bone?
- Does carbon-14 dating work on dinosaur bones?
- How old are dinosaur bones?
- Do dinosaurs have carbon dates?
- How many atoms of C-14 are in dinosaur bones?
- Did Mary Schweitzer discover fresh dinosaur tissue?
- What did Schweitzer and Wittmeyer find in another dinosaur?
- What was the first thing scientists discovered about dinosaurs?
- Did Schweitzer prove dinosaurs had elastic skin?
- What is the source of collagen in bones?
- Were collagen and protein preserved in early dinosaurs’ central vascular canals?
- What did scientists find inside a 195 million year old bone?
- Can you find soft tissue in dinosaur bones?
How old are carbon-14-dated dinosaur bones?
Carbon-14-dated dinosaur bones are less than 40,000 years old. Dinosaur bones with Carbon-14 dates in the range of 22,000 to 39,000 years before present, combined with the discovery of soft tissue in dinosaur bones, indicate that something is indeed wrong with the conventional wisdom about dinosaurs. However,...
Who discovered soft tissue in dinosaur bones?
In 2005, soft tissue was discovered inside the femur of a dinosaur bone by Dr. Mary Schweitzer. Although initially controversial, more discoveries followed by other scientists. In 2012, Kevin Anderson and Mark Armitage dug out a large section of a triceratops brow horn in Hell Creek, Montana.
Did Mary Schweitzer discover 65 million year old dinosaur fossils?
Editor’s Note: Paleontologist Mary Schweitzer made worldwide headlines in 2005 for announcing that she had discovered soft tissue preserved in 65 million year old dinosaur fossils. Those who deny the scientific evidence for the old age of the earth have attempted to leverage this discovery to cast doubt on dating methods.
Why was collagen found in a dinosaur bone?
The discovery, and later confirmation, of collagen in a Tyrannosaurus-Rex dinosaur femur bone was reported in the journal SCIENCE. This is a remarkable find because collagen, being a soft tissue present in most animals, is supposed to decay in a few thousand years. Collagen is the main protein found in connective tissue of animals.
Does carbon-14 dating work on dinosaur bones?
But carbon-14 dating wont work on dinosaur bones. The half-life of carbon-14 is only 5,730 years, so carbon-14 dating is only effective on samples that are less than 50,000 years old. Dinosaur bones, on the other hand, are millions of years old -- some fossils are billions of years old.
How old are dinosaur bones?
Researchers have found a reason for the puzzling survival of soft tissue and collagen in dinosaur bones - the bones are younger than anyone ever guessed. Carbon-14 (C-14) dating of multiple samples of bone from 8 dinosaurs found in Texas, Alaska, Colorado, and Montana revealed that they are only 22,000 to 39,000 years old.
Do dinosaurs have carbon dates?
The last article in the issue presents never-before-seen carbon dates for 14 different fossils, including dinosaurs. Because radiocarbon decays relatively quickly, fossils that are even 100,000 years old should have virtually no radiocarbon left in them. 1 But they do.
How many atoms of C-14 are in dinosaur bones?
If dinosaur bones are 65 million years old, there should not be one atom of C-14 left in them. Clearly something is wrong with the conventional wisdom about dinosaur bones, but it has been hard to reach the public with the information.
What is the source of collagen in bones?
These were probably derived from the iron-rich blood cells of the living dinosaur and would have provided the internal environment for the preservation of collagen. Within a rib, the scientists found fragments of proteins, likely from the collagen in the bone’s vascular canals.
Were collagen and protein preserved in early dinosaurs’ central vascular canals?
“The characteristic infrared absorption spectra of collagen and protein provide undeniable, clear evidence that collagen and protein remains were preserved inside the osteonal central vascular canals of this early dinosaur,” the study authors wrote.
What did scientists find inside a 195 million year old bone?
Dinosaur surprise: Scientists find collagen inside a 195-million-year-old bone. A piece of the 195-million-year-old Lufengosaurus rib, where bits of collagen were found. Dinosaur paleontology has long been the domain of bones and teeth – but now soft tissues could be changing the game.
Can you find soft tissue in dinosaur bones?
Scientists Find Soft Tissue in 75-Million-Year-Old Dinosaur Bones. Even so, scientists have found intact soft tissue in dinosaur bones before. The most famous case dates to 2005, when Mary Schweitzer of North Carolina State University found collagen fibers in the fossilized leg bone of a Tyrannosaurus rex.