6533b836fe1ef96bd12a07ea
RESEARCH PRODUCT
Quantification de révolution morphologique du crâne des Hominidés et hétérochronies
Françoise Magniez-janninFrédéric CourantJean ChalineDidier MarchandJean-jacques MilletBruno DavidAnne Dambricourt Malassésubject
Skullmedicine.anatomical_structurebiologyHomo sapiensOntogenymedicineZoologyOcean EngineeringAustralopithecinebiology.organism_classificationEcology Evolution Behavior and Systematicsdescription
Abstract Comparisons of adult skulls of various species of great apes, fossil hominids and modern humans in the sagittal, Francfort and ortho-sagittal planes reveal a series of three separate organisation plans: ‘Great Ape’, ‘Australopithecine’ and ‘Homo’, the latter including primitive men ( Homo ergaster-erectus-neandertalensis ) and modern humans ( Homo sapiens ). Morphological changes between these plans are quantified for the first time here by vector fields. This study confirms the existence of cranio-facial contraction, which occurs as a series of leaps. The juvenile morphology of the great ape skull is broadly preserved in adult Homo sapiens, suggesting that numerous heterochronies have occurred in mosaic during ontogeny (hypermorphosis, hypomorphosis, post-displacements).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-02-01 | Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science |