Nature and relationships of Sahelanthropus tchadensis.

  title={Nature and relationships of Sahelanthropus tchadensis.},
  author={Roberto Macchiarelli and Aude Bergeret-Medina and Damiano Marchi and Bernard A. Wood},
  journal={Journal of human evolution},
StW 573 Australopithecus prometheus: Its Significance for an Australopith Bauplan
It is concluded that the habitual locomotor mode of all australopiths was upright bipedalism, whether on the ground or on branches, and that the common panin-hominin last common ancestor was postcranially more like Gorilla than Pan.
Age constraints for the Trachilos footprints from Crete
An updated time frame is presented for the 30 m thick late Miocene sedimentary Trachilos section from the island of Crete that contains the potentially oldest hominin footprints and correlations are made with normal polarity Chron C3An, characterized by normal magnetic polarity.
Estimating origination times from the early hominin fossil record
  • R. Bobe, B. Wood
  • Environmental Science, Geography
    Evolutionary anthropology
  • 2021
Estimating confidence intervals on the first appearance records of the earliest potential hominins, as well as of the genera Australopithecus, Homo, and Paranthropus, to better evaluate patterns of hominin diversity, turnover, and potential correlations with climatic and environmental changes.


New material of the earliest hominid from the Upper Miocene of Chad
New dental and mandibular specimens from three Toros-Menalla fossiliferous localities of the same age are described, including a lower canine consistent with a non-honing C/P3 complex, post-canine teeth with primitive root morphology and intermediate radial enamel thickness, which confirm the morphological differences between S. tchadensis and African apes.
Morphological affinities of the Sahelanthropus tchadensis (Late Miocene hominid from Chad) cranium.
  • F. Guy, D. Lieberman, M. Brunet
  • Environmental Science
    Proceedings of the National Academy of Sciences of the United States of America
  • 2005
The results not only confirm that Sahelanthropus tchadensis cranium is a hominid but also reveal a unique mosaic of characters that is most similar to Australopithecus, particularly in the basicranium.
Virtual cranial reconstruction of Sahelanthropus tchadensis
A detailed virtual reconstruction of the TM 266 cranium confirms that S. tchadensis is a hominid and is not more closely related to the African great apes, and indicates that bipedalism was present in the earliest known hominids, and probably arose soon after the divergence of the chimpanzee and human lineages.
Taxonomic affinities of the Eppelsheim femur.
Allometric techniques show that the Eppelsheim and D. laietanus femora fit different hindlimb morphologies with regard to relative length and relative head/neck size, with Paidopithex significantly differing from Dryopithecus, but more closely resembling Pliopithecus.
An Ape or the Ape : Is the Toumaï Cranium TM 266 a Hominid ?
  • Environmental Science
  • 2006
The Toumaï cranium TM 266 is the first known from any Late Miocene African hominoid clade, and is one of the best preserved crania of any Miocene hominoid. Since its publication there has been debate
The femur of Orrorin tugenensis exhibits morphometric affinities with both Miocene apes and later hominins.
The results indicate that both hominin and modern great ape femora evolved in different directions from a primitive morphology represented by some fossil apes, consistent with femoral shape similarities in extant great apes being derived and homoplastic.