Spinulosida

Echinaster sepositus

Subphylum : Eleutherozoa
Classis : Asteroidea
Ordo : Spinulosida
Perrier, 1884

Subdivisiones: Familiae

Vide commentarium.

Spinulosida sunt ordo Echinodermatum classis Asteroideorum, cui sunt saltem 120 species.

Spinulosida pedicellariis omnino carent, et delicatam sceleti compositionem habent. Nomen ex multis spinis humilibus in superficie superiore deducitur.^[1] Nulla Spinulosidorum fossilia inventa sunt.^[2]

↑ Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphiae: Holt-Saunders International. p. 948. ISBN 0-03-056747-5
↑ "Asterozoa: Fossil groups: SciComms 05-06: Earth Sciences". Palaeo.gly.bris.ac.uk. 2005-11-22 .

[IZ-1] Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphiae: Holt-Saunders International. p. 948. ISBN 0-03-056747-5

[2] "Asterozoa: Fossil groups: SciComms 05-06: Earth Sciences". Palaeo.gly.bris.ac.uk. 2005-11-22 .

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Spinulosida

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