Clypeasteroid
Definition, Meaning & Examples
Part of speech noun
Quick meaning: Clypeasteroid is a noun meaning Any echinoderm of the order Clypeasteroida of sand dollars.
Meaning
Any echinoderm of the order Clypeasteroida of sand dollars.
Example Sentences
At ordinal levels, in cassiduloids and holectypoids, ambitus is circular, elliptical or oval, while clypeasteroids have a pentagonal to circular type.
Their living representatives include the sea urchins or 'true' echinoids, the heart-urchins or spatangoids and allied forms, the sand-dollars or clypeasteroids, and the slate-pencil-urchins, or cidaroids.
Their traditional taxonomy, based on skeletal characters, has been largely corroborated by recent molecular phylogenetic analyses with one marked exception: clypeasteroids are not found to be monophyletic.
Word Forms
- clypeasteroids
Related Words
Related dictionary entries include clypeastroid, clypeola, echinoid, echinoderm, echinasterid, cliopsid.
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Sources & Attribution
FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0
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