After Parker, 1982 and “The CAS Echinoderm webpage”, 1998
<==o Atelostomata |--o Cassiduloida | |-- Echinolampadidae | |-- Cassidulidae | |-- Pliolampadidae | |-- Apatopygidae | `-- Neolampidae `--o Spatangoida |-- Holasterina Durham & Melville, 1957 sensu Parker, 1982 [Holasteroida Durham & Melville, 1957 sensu The Echinoid Directory, 2004] `--o Aphisternata |-- Toxasteridae |-- Hemiasteridae |-- Palaeostomatidae |-- Pericosmidae |-- Schizasteridae |-- Aeropsidae |-- Brissidae |-- Spatangidae |-- Loveniidae `-- Asterostomatidae
Reference(s):
- Anonymous, 1998: The CAS Echinoderm webpage.
–iNet: California Academy of Sciences: http://www.calacademy.org/research/izg/echinoderm/classify.htm [visited: 2002-5 October] - Parker, S. P. (ed.), 1982: Synopsis and classification of living organisms. Vols. 1 & 2
–McGrew-Hill Book Company