Corticata ("one with a cortex"), in the classification of eukaryotes (living organisms with a cell nucleus), is a clade suggested by Cavalier-Smith to encompass the eukaryote supergroups of the following two groups: * Plantae, or Archaeplastida (plants, red algae, green algae, and glaucophytes) * Chromalveolata (a group including kelp, water moulds, ciliates, dinoflagellates, and other organisms) It can also be described as all Bikonts that are not Excavates or Rhizaria.