- Hacrobia (the "HC" refers to Haptophyta and Cryptophyta, the two major members of this group)
- SAR supergroup
It has also been described as the sum of Archaeplastida, Rhizaria, and chromalveolates. However, this simply refers to a different way of grouping the same organisms, largely due to the discovery that chromalveolata was not monophyletic.
- Burki, F.; Shalchian-Tabrizi, K.; Pawlowski, J. (2008). "Phylogenomics reveals a new 'megagroup' including most photosynthetic eukaryotes". Biology Letters 4 (4): 366–369. PMC 2610160. PMID 18522922. doi:10.1098/rsbl.2008.0224.
- Hampl, V.; Hug, L.; Leigh, J.; Dacks, J.; Lang, B.; Simpson, A.; Roger, A. (2009). "Phylogenomic analyses support the monophyly of Excavata and resolve relationships among eukaryotic "supergroups"". Proceedings of the National Academy of Sciences of the United States of America 106 (10): 3859–3864. Bibcode:2009PNAS..106.3859H. PMC 2656170. PMID 19237557. doi:10.1073/pnas.0807880106.
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