Hasdrubal placed his unarmoured Iberian infantry in the centre of his line, with African heavy infantry on their left and heavy infantry described by Livy as "Poeni" on their right; both the Africans and the Poeni would have fought in a dense phalanx formation. Libyan and Iberian cavalry were positioned on the left wing facing the Roman and Roman-allied Iberian horse, while Numidian light cavalry covered the right wing facing the allied Italian horsemen. The elephants were most probably placed at intervals in front of the infantry. The Balearic slingers and North African light infantry formed a skirmish line in front of the elephants.