Metazoa > Bilateria > Protostomia > ungegliederte Protostomia > Plathelminthes > Turbellaria > Polycladida |
Ordnung
Familien
| Callioplanidae | Stylochidae | Cestoplanidae |
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| Cryptocelididae | Discocelidae | Leptoplanidae |
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| Notoplanidae | Planoceridae | Pleioplanidae |
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| Stylochoplanidae | Anonymidae | Euryleptidae |