Echinoidea
Translingual
Echinus esculentus
Etymology
Echinus + -oidea
Proper noun
Echinoidea
- A taxonomic class within the phylum Echinodermata – sea urchins and sand dollars.[1]
Hypernyms
- (class): Eukaryota - superkingdom; Animalia - kingdom; Bilateria - subkingdom; Deuterostomia - infrakingdom; Deuterostomia - superphylum; Echinodermata - phylum; Echinozoa - subphylum[1]
Hyponyms
- (class): Euechinoidea (almost all extant species), Perischoechinoidea (primitive and extinct sea urchins) (subclasses)
OR
- (class per Ruggiero): Cidaroidea, Euechinoidea - subclasses[1]
Coordinate terms
- (class per Ruggiero): Holothuroidea[1]
References
Sea urchin on Wikipedia.Wikipedia 
Echinoidea on Wikispecies.Wikispecies 
Echinoidea on Wikimedia Commons.Wikimedia Commons - Echinoidea at the Tree of Life Web Project
- Ruggiero MA, Gordon DP, Orrell TM, Bailly N, Bourgoin T, Brusca RC, et al. (2015) A Higher Level Classification of All Living Organisms. PLoS ONE 10(4): e0119248. doi: 10.1371/journal.pone.0119248. pmid:25923521