Sentences with phrase «preserved cellular structures»
Not exact matches
That's because they underwent a process in which silica — likely emitted by a nearby volcano — saturated the tree and took on the shape of the wood's internal structure as it decayed, preserving its 3D cellular structure.
http://www.sciencemag.org/
Shortly afterwards, a team led by paleontologist Derek Briggs of Yale University showed for the first time that cellular structures called melanosomes, which contain the melanin pigments that give color to skin and hair in humans and plumage in birds, can be preserved in fossil feathers.