Middle Pleistocene vertebrate fossils from the Nefud Desert, Saudi Arabia: Implications for biogeography and palaeoecology by Stimpson, C, Lister, A, Parton, A, Clark-Balzan, L, Breeze, P, Drake, N, Groucutt, H, Jennings, R, Scerri, E, White, T, Zahir, M, Duval, M, Grün, R, Al-Omari, A, Al Murayyi, K, Zalmout, I, Mufarreh, Y, Memesh, A, Petraglia, M