Arachnoididae
Encyclopedia
Arachnoididae is a family
of echinoderm
s of the order
Clypeasteroida.
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
of echinoderm
Echinoderm
Echinoderms are a phylum of marine animals. Echinoderms are found at every ocean depth, from the intertidal zone to the abyssal zone....
s of the order
Order (biology)
In scientific classification used in biology, the order is# a taxonomic rank used in the classification of organisms. Other well-known ranks are life, domain, kingdom, phylum, class, family, genus, and species, with order fitting in between class and family...
Clypeasteroida.
Genera
- Ammotrophus H. L. Clark, 1928
- ArachnoidesArachnoidesArachnoides is a genus of sea urchin within the family Arachnoididae, found in the Indo-Pacific oceans. The base is flat and the upper surface is convex .-Species:* Arachnoides placenta Australia to Philippines...
Leske, 1778 - Fellaster Durham, 1955
- Fossulaster Lambert & Thiery, 1925
- Monostychia Laube, 1869
- Philipaster Wang, 1994
- Prowillungaster Wang, 1994
- Scutellinoides Durham, 1955
- Willungaster Philip & Foster, 1971