Trepaxonemata | |
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Spermatozoa of various Trepaxonemata (transverse sections, transmission electron microscopy) | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Platyhelminthes |
Subphylum: | Rhabditophora |
Subclass: | Trepaxonemata Ehlers, 1985 |
Subgroups | |
Trepaxonemata (from trepa-, spiral + axoneme) is a subclass of the Platyhelminthes or flatworms.[1] It includes all parasitic flatworms (clade Neodermata) and several free-living species that were previously grouped in the now obsolete class Turbellaria. Therefore, it contains the majority of species in the phylum Platyhelminthes, excluding the Catenulida, and the Macrostomorpha.