Of bones and teeth: using cross-calibrated histology to infer physiology in mammal ancestors
收藏ESRF Portal2028-01-01 更新2026-04-23 收录
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https://doi.esrf.fr/10.15151/ESRF-ES-2156316396
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资源简介：
We plan to investigate growth and physiology in extinct mammalian ancestors using synchrotron tomography to image their fossil bones and teeth at sub-micron resolution. Our experiment will combine the complimentary histological growth records preserved in teeth and bones. Our proposed study system are five species of South African cynodonts close to mammalian origins that lived some 200 million years ago. These species are known from numerous exquisitely preserved fossils, including juveniles and presumed adults, permitting insight across their growth history. Scans of dentine and enamel of their teeth will image daily-to-monthly growth increments, and will be calibrated to circum-annual increments in the tooth cementum, and annual lines of arrested growth in long bones and jaws. These data, alongside analysis of long-bone histological fabrics, will provide the highest-resolution histological insights for life history in fossil samples to-date.
提供机构：
Queen Mary University of London, Department of Engineering, Mile End Road, E1 4ns London, United Kingdom; University of Johannesburg, Evolutionary Studies Institute, Private Bag 3, Wits, 2050 Johannesburg, South Africa; Universtiy of Witwatersrand, Bernard Price Institute for Palaeontology, School of Geosciences, Private Bag 3, 2050 Johannesburg, South Africa; University of the Witwatersrand, Evolutionary Studies Institute Micro-CT, Wits Evolutionary Studies Institute Room SF, 9 Ground Floor, Palaeoscience Building East C, 2001 Johannesburg, South Africa; American Museum of Natural History, Vertebrate Paleontology, Central Park West at 79th St., 10024 New York, Usa
创建时间：
2028-01-01
