Full reference: E. Haeckel. 1896. Systematische Phylogenie der Echinodermen. Entwurf eines natürlichen Systems der Organismen auf Grund ihrer Stammesgeschichte. Theil 2. Wirbellose Thiere 348-504
Parent taxon: Holothuroidea according to A. M. Kerr and J. Kim 2001
See also Frizzell and Exline 1966, Gilliland 1993, Haeckel 1896, Pawson 1966 and Sepkoski 2002
Sister taxa: Acanthocaudina, Achistrulidae, Alexandritidae, Apodacea, Apodida, Arthrochirota, Arthrochirotida, Aspidochirotacea, Aspidochirotida, Bogschites, Calcancorellidae, Canisiidae, Chiridotitidae, Conisia, Crucivirga, Dactylochirotida, Dendrochirotacea, Dendrochirotida, Elasipodida, Etheridgellidae, Harinellites, Irinella, Kaliobullitidae, Kozurellidae, Kuehnitidae, Laetmophasma, Leptosynapta, Ocellothuria, Palelpidiidae, Paractinopoda, Placerotapis, Priscopedatidae, Protocaudinidae, Punctatitidae, Rotiformidae, Sclerothurites, Semperitidae, Stichopitidae, Synaptellidae, Tetravirga, Theeliidae, Thyonidium, Triradites
Subtaxa: Caudinidae Exlinellidae Gephyrothuriidae Molpadiidae
Ecology: stationary semi-infaunal deposit feeder
Distribution: