Carbonate horizons, paleosols, and lake flooding cycles: Beds I and II of Olduvai Gorge, Tanzania Jim D. Marshall, Carys E. Bennett, Ian G. Stanistreet • 2012
Orbital forcing and the spread of C4 grasses in the late Neogene: stable isotope evidence from South African speleothems Alf G. Latham, Graham P. Weedon, Philip J. Hopley, Jim D. Marshall, Andy I.R. Herries, K.L. Kuykendall • 2007