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| | EUKARYA |
 | | The Excavata includes taxa that are photosynthetic, parasitic, symbiotic and heterotrophic. |
 | | Many of the taxa lack mitochondria, and, therefore, seemed to conform to the requirements of an archaic premitochondrial ancestor of all eukaryotes. |
 | | I interpret the differences between the discicristates and euexcavates to be of the same magnitude and, therefore, retain their separation as kingdoms within the supergroup Excavata.] The remaining taxa occupy a different clade which I interpret as the Kingdom Euexcavatae. |
| comenius.susqu.edu /bi/202/DOMAINS/SUPERGROUP-EXCAVATA.htm (449 words) |
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