Calcium isotopic ecology of Turkana Basin hominins - Université Claude Bernard Lyon 1 Accéder directement au contenu
Article Dans Une Revue Nature Communications Année : 2020

Calcium isotopic ecology of Turkana Basin hominins

Résumé

Diet is a major driver of hominin evolution, but most of the geochemical evidence relies on carbon isotopes (δ 13 C). Here, we report enamel stable calcium isotope (δ 44/42 Ca) values against δ 13 C values for several hominins and co-existing primates in the Turkana Basin area, circa 4 to 2 Ma. Australopithecus anamensis clusters with mammal browsers, Kenyanthropus platyops is distinct from A. anamensis in foraging into more open environments and the coexisting Theropithecus brumpti encompasses both the grazer and omnivore/carnivore domains. Early Homo is remarkable for its wide distribution in δ 44/42 Ca values, possibly reflecting omnivorous and opportunistic preferences. Paranthropus boisei is uniquely distributed in the δ 13 C versus δ 44/42 Ca iso-space being distinct from all other hominins from the Turkana Basin area as well as from the co-existing Theropithecus oswaldi. Several hypotheses are explored to discuss the unique δ 44/42 Ca values of Paranthropus boisei including significant differences observed with δ 44/42 Ca values recently reported for P. robustus from South Africa, questioning the monophyly of this genus.
Fichier principal
Vignette du fichier
s41467-020-17427-7.pdf (696.82 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-02904941 , version 1 (22-07-2020)

Identifiants

Citer

Jérémy Martin, Theo Tacail, José Braga, Thure E. Cerling, Vincent Balter. Calcium isotopic ecology of Turkana Basin hominins. Nature Communications, 2020, 11 (1), ⟨10.1038/s41467-020-17427-7⟩. ⟨hal-02904941⟩
34 Consultations
42 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More