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- ›Echinoderms
- ›sea urchins and sea cucumbers
- ›Sea Urchins, Sand Dollars, and Heart Urchins
- ›sea urchins
- ›Aulodonta
- ›Echinothuriacea
Echinothurioida
The Echinothurioida are an order of sea urchins in the class Echinoidea. Echinothurioids are distinguished from other sea urchins by the combination of a flexible test and hollow spines. The membrane around the mouth contains only simple plates, in contrast to the more complex mouth parts of their close relatives, the Diadematoida. They are nearly all deepsea dwellers.
3 branches of this order, most-observed first
Echinothuriidae
familyEchinothuriidae
Phormosomatidae
familyPhormosomatidae
Kamptosomatidae
familyKamptosomatidae
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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Every page naming Echinothurioida in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 143235.