Late Cretaceous–Early Eocene origin of yams (Dioscorea, Dioscoreaceae) in the Laurasian Palaearctic and their subsequent Oligocene–Miocene diversification
Biogeography, phylogenetic dating, pantropical distribution, N‐S American Long‐Distance Dispersal, Palaearctic – Nearctic colonization, dispersal‐extinction‐cladogenesis model, Thulean – Beringian land bridges, Laurasian origin, fossil constrains, yams