Preliminary paleohistological observations of the StW 573 ('Little Foot') skull
Beaudet, Amélie (Institut Català de Paleontologia Miquel Crusafont)
Atwood, Robert C. (Diamond Light Source)
Kockelmann, Winfried (Rutherford Appleton Laboratory)
Fernandez, Vincent (Natural History Museum (Londres, Regne Unit). Core Research Laboratories)
Connolley, Thomas (Diamond Light Source)
Vo, Nghia Trong (Diamond Light Source)
Clarke, Ronald (University of the Witwatersrand. Evolutionary Studies Institute)
Stratford, Dominic (University of the Witwatersrand. School of Geography, Archaeology and Environmental Studies)

Data:	2021
Resum:	Numerous aspects of early hominin biology remain debated or simply unknown. However, recent developments in high-resolution imaging techniques have opened new avenues in the field of paleoanthropology. More specifically, X-ray synchrotron-based analytical imaging techniques have the potential to provide crucial details on the ontogeny, physiology, biomechanics, and biological identity of fossil specimens. Here we present preliminary results of our X-ray synchrotron-based investigation of the skull of the 3. 67-million-year-old Australopithecus specimen StW 573 ('Little Foot') at the I12 beamline of the Diamond Light Source (United Kingdom). Besides showing fine details of the enamel (i. e. , hypoplasias) and cementum (i. e. , incremental lines), as well as of the cranial bone microarchitecture (e. g. , diploic channels), our synchrotron-based investigation reveals for the first time the 3D spatial organization of the Haversian systems in the mandibular symphysis of an early hominin.
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Diploic channels ; Australopithecus ; Haversian system ; Hypoplasia ; Other
Publicat a:	eLife, Vol. 10 (March 2021) , ISSN 2050-084X

DOI: 10.7554/eLife.64804
PMID: 33648628

8 p, 1.0 MB

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