|KINGDOM PLANT VIRIDIPLANTAE Plantae
kingdom VIRIDIPLANTAE (Green plants)
kingdom CHLOROBIONTA (Green plants)
INCEPTION DATE: PRECAM
I know nothing about taxonomy. But here is my take on it.
Biomass is rughly (very rughly) represented by thickness.
Biomass should be determinable from the fossil record, but I just don't have the time
Time is rughly represented by polar distance from lower center.
Several sharp mass extingtions, such as 65 million years ago, are not shown.
subkingdom CHLOROPHYTA (Green algae)
AIR EXPOSURE, SURFACE PLANTS
Complex green algae
unicellular scaly green flagellate Mesostigma viride
terrestrial streptophyte algae 455 million years ago, (algae go terrestrial, air exposure, and direct sun light.)
cell differentiation; cellulosic cell wall, multicellularity, root meristem, asymmetric cell division
cytokinesis by a phragmoplast
retention of zygotes
Class Charophyceae (StoneWarts)
Bryopyta (Mosses and Liverworts)
HEPATICAE (Liver Warts)
Class ANTHOCEROTAE (Horn Warts)
Class MUSCI (Mosses)
subkingdom TRACHEOPHYTA (Vascular Plants)