Percolatea are a class of excavates in the phylum Percolozoa.[1][2]
^Cavalier-Smith, T.; Nikolaev, S. (2008). "The zooflagellates Stephanopogon and Percolomonas are a clade (class Percolatea: Phylum Percolozoa)". The Journal of Eukaryotic Microbiology. 55 (6): 501–509. doi:10.1111/j.1550-7408.2008.00356.x. PMID19120795.