hard shell of some spherical marine animals, notably sea urchins and microorganisms such as testate foraminiferans, radiolarians, and testate amoebae
Wikidata facts
- Subclass of
- seashell
- Image
- Arbacia lixula 02.JPG
Show 2 more facts
- produced by
- Echinoidea
- Commons category
- Echinoidea tests
Sources (2)
via Wikidata · CC0