词条 | Echinoida |
释义 |
|image = Riccio Melone a Capo Caccia adventurediving.it.jpg |image_caption = Echinus melo | fossil_range ={{Fossil range|Late Cretaceous|Recent}} | regnum = Animalia | phylum = Echinodermata | classis = Echinoidea | subclassis = Euechinoidea | superordo = Echinacea | ordo = Echinoida | ordo_authority = Troschal, 1872 | subdivision_ranks = Families | subdivision = (See Text) }} Echinoida is an order of sea urchins in the class Echinoidea. They are distinguished from other sea urchins by simultaneously possessing both an un-sculpted test and a feeding lantern with large plates fused across the top of each pyramid. TaxonomyOrder Echinoida
See also
References
2 : Echinoida|Extant Late Cretaceous first appearances |
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