The kingdom system for eukaryotes does not account for the true genetics, as protists are an extremely diverse group. Instead, it has been proposed to have supergroups. There are many different models for what the supergroups are. One model has 9 supergroups. There is a varying degree of evidence that each supergroup has of being a correct classification. The TSAR supergroup contains half of eukaryotes and contains many free living single celled organisms. Hapista is another group of free living single celled organisms that usually have a spherical body and are supported by microtubles. Archeaplastida are a major supergroup that contains plants, green algae, and other types of algae. Plants and green algae are further put in the catagory of chloroplastida. Cryptista contains non-photosynthesizing organisms that can usually move with flagella. Some studies indicate Crypista may be related to archeaplastida. Amorphea is another supergroup that contains animals and fungus, along with amobeas and some other single cellular organisms. There is a lot of evidence that amorphea is a correct classification. CRuMs are another proposed supergroup of mostly single celled organisms that have flagellites to swim. Discoba is another supergroup that contains a lot of organisms that are parasites. Metamonada is another supergroup that unlike the others, is anaerobic. They live in the intestines of insects such as termites to help break down wood. The evidence of this being a correct genetic catagory is not strong enough to make a conclusion right now. Hemimastigophora are another group and they have multiple flagella. They could not be easily placed anywhere else so right now it is proposed that they are a supergroup. Some problems with classifying the protists is that it is somewhat arbitrary how different groups have to be to be considered separate supergroups. There are also some orphan species without much being related to them and it is hard to classify them in relation to each other. The taxonomy of eukaryotes needs to be improved and many of the current definitions for distinction are somewhat arbitrary, and the lack of complete genetic knowledge makes it hard to classify them correctly.
