Phylum Acoela
Parent taxon: Acoelomorpha according to D. Knaust 2021
See also Edgecombe et al. 2011, Nielsen 2012 and Zrzavy et al. 1998
Sister taxa: Nemertodermatida, Xenoturbellida
Subtaxa: Convolutidae
Distribution: found only at Quarry Troistedt (Triassic of Germany)