The lineage of algae according to Thomas Cavalier-Smith
. The exact number and placement of endosymbiotic events
is currently unknown, so this diagram can be taken only as a general guide
It represents the most parsimonious way of explaining the three types of endosymbiotic origins of plastids. These types include the endosymbiotic events of cyanobacteria
, red algae
and green algae
, leading to the hypothesis of the supergroups Archaeplastida
respectively. However, the monophyly of Cabozoa has been refuted and the monophylies of Archaeplastida and Chromalveolata are currently strongly challenged.
Endosymbiotic events are noted by dotted lines.