The Early Homo Conundrum: Challenges and Potential Solutions.Clément Zanolli,David M Alba,Thibaut Caley,Marine Cazenave,Isabelle Crevecoeur, Ignacio de la Torre,Anne Delagnes,Lucas K Delezene,Florent Détroit,Renaud Joannes-Boyau,Adeline Le Cabec, Tina Lüdecke,Ann Margvelashvili, Charles Musiba,Simon Neubauer,Yonatan Sahle,Friedemann Schrenk,Matthew M Skinner, Krister T Smith,Alessandro Urciuoli,Brian Villmoare,Bernard Wood,Ottmar Kullmer