Angiosperm flowers and tricolpate pollen of Buxaceous affinity from the Potomac Group (mid-Cretaceous) of eastern North America

Abstract

A new genus of fossil angiosperms (Spanomera gen. nov.) is established for flowers from two localities in the mid-Cretaceous Potomac Group of Maryland, eastern North America. Characters that Spanomera shares with other taxa suggest that the Buxaceae themselves may be closely related to Myrothamnaceae and other "lower' Hamamelididae. -from Authors