organisms
see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Kingdom Protoctista Hogg, 1860
Phylum Ciliophora Doflein, 1901 - ciliates
Class "Polyhymenophorans"
see Class Polyhymenophorea
Genus Gastrostyla Engelmann, 1862
Gastrostyla steinii Engelmann, 1862