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originally posted by: cooperton
originally posted by: peter vlar
a reply to: Raggedyman
"Fossilized organic remains are important sources of information because they provide a unique form of biological and evolutionary information, and have the long-term potential for genomic explorations. Here we report evidence of protein preservation in a terrestrial vertebrate found inside the vascular canals of a rib of a 195-million-year-old sauropodomorph dinosaur, where blood vessels and nerves would normally have been present in the living organism. "
Peter you have to get a grip... You posted the first half of the abstract that made a general statement about fossilized remains, yet goes on to say:
"(we) identified (Aggregated haematite particles) inside the vascular canals using confocal Raman microscopy, where the organic remains were preserved."
Proteins are organic remains. This is why I mentioned how quickly the process of protein degradation is, and how proteins cannot last for the mythical 195 million years.
If you were a true scientist that follows all observable clues, you would be begging to get this stuff carbon dated to check its age, but you blindly disagree and refuse to even consider something that disagrees with the old dogma.
originally posted by: peter vlar
However, preserved is a synonym for fossilized. It's a useful but of knowledge when reading papers regarding paleontology and paleo-anthropological papers. Just to be clear, preserved means that the tissue was fossilized.
2015. Signs of ancient cells and proteins found in dinosaur fossils
...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.
...Bertazzo, an expert on how living bones incorporate minerals, uses a tool called a focused ion beam to slice through samples, leaving pristine surfaces that are ideal for high-resolution imaging studies.
...What they found shocked them. Imaging the fresh-cut surfaces with scanning and transmission electron microscopes, “we didn’t see bone crystallites” as expected, Maidment says. “What we saw instead was soft tissue. It was completely unexpected. My initial response was these results are not real.”
The U.K. team tested more fossils and ran microscopic samples from what appear to be collagen fibers through a mass spectrometer to get the weight of the component molecules. The weights came back as identical to those of the three most common amino acids in collagen, the team reports.
...A different type of mass spectrometer that can provide the sequence of the amino acids in a protein fragment would strongly suggest the existence of collagen and replicate the earlier work, Collins says. Maidment says the team hopes to do such studies soon. If they succeed, the work may spur additional efforts to isolate dinosaur proteins and understand how they differed from those of their modern relatives.