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Natural Science Forum / Biology / Paleontology / February 2008Bone cell remains found in Carboniferous human skull cap
The remains of the bone cells in a Carboniferous human skull cap fossil were newly identified in a Haversian system (osteon). The bone cells were so well-preserved that even their dendrites were clearly seen in the canaliculi. Detailed notes and the photo at: http://www.wretch.cc/album/show.php?i=lin440315&b=13&f=1588634518&p=0 > The remains of the bone cells in a Carboniferous human skull cap > fossil were newly identified in a Haversian system (osteon). The bone [quoted text clipped - 3 lines] > > http://www.wretch.cc/album/show.php?i=lin440315&b=13&f=1588634518&p=0 Now, lemme get this straight. Was the skull cap carbonized, or was this Fred Flinstone and his pet dog Eryops? Steve  SignatureMark & Steven Bornfeld DDS http://www.dentaltwins.com Brooklyn, NY 718-258-5001 Lin Liangtai wrote: >> The remains of the bone cells in a Carboniferous human skull cap >> fossil were newly identified in a Haversian system (osteon). The bone [quoted text clipped - 3 lines] >> >> http://www.wretch.cc/album/show.php?i=lin440315&b=13&f=1588634518&p=0 No they weren't. By the way, there are no dendrites in canaliculi. But as you don't know your anatomical and histological a.s from a hole in the ground, we wouldn't expect you to know that. > Lin Liangtai wrote: > >> Theremainsof thebonecells in aCarboniferoushumanskullcap [quoted text clipped - 10 lines] > your anatomical and histological a.s from a hole in the ground, we wouldn't > expect you to know that. Sorry for having called you a cheat before, as you may have unintentionally stated there was no structure or remains of fossilized cell in Ed's specimens. However, dare you say again there were no lacunae, no canaliculi, no Haversian canal in that picture, although osteocytes and their dendrites may be dead and unclear? > > Lin Liangtai wrote: > > >> Theremainsof thebonecells in aCarboniferoushumanskullcap [quoted text clipped - 16 lines] > lacunae, no canaliculi, no Haversian canal in that picture, although > osteocytes and their dendrites may be dead and unclear? In further reply to your denial of the existence of osteocyte in that SEM, I have now marked an osteocyte in that SEM. For clarity, I have marked its NUCLEUS, the osteocyte itself, its dentritic processes, the canaliculi, and the lacuna. The photo (same as the original one): http://www.wretch.cc/album/show.php?i=lin440315&b=13&f=o1588634516.jpg&p=0 |
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