Cassiduloida
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Cassidulus mitis, one of the Cassiduloida
Translingual
Etymology
Cassidulus + -ida
Proper noun
Cassiduloida
- A taxonomic order within the class Echinoidea – certain sea urchins, most extinct since the Mesozoic.
Hypernyms
- (order): Eukaryota – superkingdom; Animalia – kingdom; Bilateria – subkingdom; Deuterostomia – infrakingdom; Deuterostomia – superphylum; Echinodermata – phylum; Echinozoa - subphylum; Echinoidea - class
Hyponyms
- (order): Apatopygidae, Cassidulidae, Echinolampadidae, Neolampadidae, Pliolampadidae - families
References
Cassiduloida on Wikipedia.Wikipedia 
Cassiduloida on Wikispecies.Wikispecies 
Category:Cassiduloida on Wikimedia Commons.Wikimedia Commons - Cassiduloida at World Register of Marine Species
- Cassiduloida at Integrated Taxonomic Information System.
- Cassiduloida at the Tree of Life Web Project
- Cassiduloida at National Center for Biotechnology Information
- Cassiduloida at Paleobiology Database
- 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. PMID 25923521, →DOI