Distribution maps

(online von http://www.mobot.org/MOBOT/research/APweb/ . Dort zitiert wie unter jedem Diagramm vermerkt):

Trochodendron (Trochodendraceae)
map: red, fossils blue [Japan - N.E. Honshu, not in the sea...], Pigg et al. 2001, 2007

Tetracentron (Trochodendraceae)
map: from Hara & Kanai 1964; fossils green, from Grímsson et al. 2008