New single crystal 40 Ar/ 39 Ar ages improve time scale for deposition of the Omo Group, Omo–Turkana Basin, East Africa Available to Purchase

Geochronology of the pre-KBS Tuff sequence, Omo Group, Turkana Basin Available to Purchase

Sequence of tuffs between the KBS Tuff and the Chari Tuff in the Turkana Basin, Kenya and Ethiopia Available to Purchase

Precise 40 Ar/ 39 Ar geochronology for the upper Koobi Fora Formation, Turkana Basin, northern Kenya Available to Purchase

Gombe Group basalts and initiation of Pliocene deposition in the Turkana depression, northern Kenya and southern Ethiopia Available to Purchase

Appearance event ordination; a new biochronologic method Free

Authigenic mitridatite from the Shungura Formation, southwestern Ethiopia Available to Purchase

Apercu des formations plio-pleistocenes de la Basse Vallee de l'Omo (Ethiopie) Available to Purchase

Les Faunes de rongeurs et de lagomorphes du Pliocene et du Pleistocene d'Afrique orientale Available to Purchase