Fig. 1: Approximate estimations of plant evolution and Phanerozoic time periods.
From: Climate windows of opportunity for plant expansion during the Phanerozoic
Lines indicate the earliest and latest origin of embryophytes, bryophytes, tracheophytes, gymnosperms and angiosperms estimates according to molecular clock analysis41. Numbers on the timeline indicate the start of each Phanerozoic period; Ma: million years ago.
