Family Holothuriidae Ludwig 1894 (sea cucumber)
Holothuroidea - Aspidochirotida
Parent taxon: Aspidochirotida according to A. M. Kerr and J. Kim 2001
Sister taxa: Bathysynactites, Collbatothuria, Holothuropsis, Ornaticannula, Parvispina, Stichopodidae, Synallactidae
Subtaxa: Holothuria, Labidodemas, Pravuscucumis, Protholothuria
Ecology: epifaunal deposit feeder-suspension feeder