| Synallactida | |
|---|---|
![]()  | |
| Isostichopus badionotus, in family Stichopodidae | |
| Scientific classification  | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Echinodermata | 
| Class: | Holothuroidea | 
| Order: | Synallactida Miller, Kerr, Paulay, Reich, Wilson, Carvajal & Rouse, 2017  | 
| Families | |
| 
 See text  | |
Synallactida is a rankless clade of sea cucumbers, but is referred to as an order.[1] Taxa within Synallactida were previously classified in an order called Aspidochirotida, which was determined to be polyphyletic in 2017.[2]
List of families
Synallactida includes over 130 species in three extant families and two extinct genera:[3]
- Deimatidae Théel, 1882 – 3 genera
 - Stichopodidae Haeckel, 1896 – 9 genera
 - Synallactidae Ludwig, 1894 – 12 genera
 - Genus †Collbatothuria Smith & Gallemí, 1991
 - Genus †Tribrachiodemas Reich, 2010
 
References
- ↑ Paulay, Gustav (2017). "Synallactida". WoRMS. World Register of Marine Species. Retrieved 2017-11-29.
 - ↑ Paulay, Gustav (2017). "Aspidochirotida". WoRMS. World Register of Marine Species. Retrieved 2017-11-29.
 - ↑ "WoRMS - World Register of Marine Species". www.marinespecies.org. Retrieved 2020-12-15.
 
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