Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea (/ˌæstəˈrɔɪdiə/). Common usage frequently finds these names being also...

radially divergent axes of symmetry. The subphylum includes the class Asteroidea (the starfish), the class Ophiuroidea (the brittle stars and basket stars)...

Stelleroidea is a superclass of marine echinoderms including three classes: Asteroidea: true sea stars Ophiuroidea: brittle stars and basket stars Somasteroidea...

Historically, taxonomists believed that the Ophiuroidea were sister to the Asteroidea, or that they were sister to the (Holothuroidea + Echinoidea). However...

the Indo-Pacific horned sea star, Protoreaster nodosus (Echinodermata; Asteroidea)". Marine Biology. 156: 55–63. doi:10.1007/s00227-008-1064-2. hdl:2066/72067...

which represents all post-Paleozoic asteroids within the Class Asteroidea. Class Asteroidea, Infraclass Concentricycloidea, Order Peripoda (or Peripodida)...

The Valvatida are an order of starfish in the class Asteroidea, which contains 695 species in 172 genera in 17 families. The order encompasses both tiny...

nodosus (Echinodermata; Asteroidea)". Frontiers of Biogeography. 14 (3). doi:10.21425/F5FBG56187. C.L. Mah (2010). "Asteroidea taxon details for Protoreaster...

Long Island Sound is a large marine estuary in the Northeastern United States. It forms the maritime border between New York's Long Island and Connecticut...

This list of South American animals extinct in the Holocene features animals known to have become extinct in the last 12,000 years on the South American...