Many species of Magnoliaceae were widely distributed in the Northern Hemisphere, such as Asia, Europe and North America while there was no fossil record in Africa and Oceania since Cretaceous.

• 自白垩纪以来,木兰科的许多种广泛发生于北半球,如亚洲、欧洲及北美等地,但非洲和大洋洲至今尚未发现木兰科的化石记录。