clypeasteroid
clypeasteroid noun: any echinoderm of the order Clypeasteroida of sand dollars.

Noun
clypeasteroid (plural clypeasteroids)
- Any echinoderm of the order Clypeasteroida of sand dollars.
- 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.2006, Robert Wynn Jones, Applied Palaeontology, page 181
- At ordinal levels, in cassiduloids and holectypoids, ambitus is circular, elliptical or oval, while clypeasteroids have a pentagonal to circular type.2008, Anis Kumar Ray, Fossils in Earth Sciences, page 217
- Synonyms:
- pansy shell, sand dollar, sea cookie, snapper biscuit
Synonyms of clypeasteroid
Forms of clypeasteroid
| plural | clypeasteroids |
|---|
Questions about clypeasteroid
- What does clypeasteroid mean?
- Clypeasteroid means any echinoderm of the order Clypeasteroida of sand dollars.
- What part of speech is clypeasteroid?
- Clypeasteroid is a noun.
- What is the plural of clypeasteroid?
- The plural of clypeasteroid is clypeasteroids.
Words near clypeasteroid in the dictionary
Source and license
Adapted from Wiktionary: clypeasteroid (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Cite this entry: “clypeasteroid.” Word.ws, https://word.ws/clypeasteroid. Based on Wiktionary, CC BY-SA 4.0.
