Figure 4.
Dispersal and extinction events of extant and extinct species of Juglandaceae during the entire Cenozoic. Bar plots show the number of local extinction events during the entire Cenozoic. Region abbreviations: AHL Asian High Latitudes; NAHL
North American High Latitudes; Eu
Europe; EA
East Asia; NA
North America; SEA
Southeast Asia; SA
South America. The thickness of the arrows represents the number of dispersal events. Red arrows indicate that the dispersal events are more than or equal to four events.