Phylum Chaetognatha Leuckart 1854 (arrow worm)
PaleoDB taxon number: 30727
Parent taxon: Scalidophora according to C. Nielsen 2012
Sister taxa: Eokinorhynchus, Eopriapulites, Kinorhyncha, Loricifera
Subtaxa: Eognathacantha, Paucijaculum, Protoconodonta, Protoconodontida, Titerina
Ecology: nektonic carnivore