Euechinoidea
Translingual
Echinus esculentus
Etymology
From New Latin eu- (“true”) + Echinoidea.
Proper noun
Euechinoidea
- A taxonomic subclass within the class Echinoidea – most extant sea urchins.[1]
Hypernyms
- (subclass): Eukaryota - superkingdom; Animalia - kingdom; Bilateria - subkingdom; Deuterostomia - infrakingdom; Deuterostomia - superphylum; Echinodermata - phylum; Echinozoa - subphylum; Echinoidea - class[1]
Hyponyms
- (subclass): Atelostomata (includes the heart urchins), Diadematacea (sea urchins with hollow spines), Echinacea (sea urchins with solid spines and rigid test), Gnathostomata (includes the sand dollars) (superorders)
- Acroechinoidea, Carinacea, Irregularia - infraclasses[1]
Coordinate terms
- (subclass): Cidaroidea[1]
References
Euechinoidea on Wikipedia.Wikipedia 
Euechinoidea on Wikispecies.Wikispecies 
Euechinoidea on Wikimedia Commons.Wikimedia Commons - Euechinoidea at World Register of Marine Species
- 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