After Parker, 1982
<==o Scaphopoda (hammaskotilot) |--o Dentaliida | |?- Eboreidentidae | |?- Omniglyptidae | |-- Gadilinidae [Episiphonidae] | `--+--+-- Dentaliidae (isohammaskotilot) | | `-- Fustiariidae | `--+-- Calliodentaliidae | `-- Rhabdidae [Laevidentaliidae] `--o Gadilida |?- Siphonodentaliidae (pikkuhammaskotilot) |-- Entalinidae `--+-- Pulsellidae `--+-- Wemersoniellidae `-- Gadilidae [Cadulidae; Loxoporidae]
Reference(s):
- Parker, S. P. (ed.), 1982: Synopsis and classification of living organisms. Vols. 1 & 2
–McGrew-Hill Book Company