Starfish - Wikipedia
Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea (/ ˌ æ s t ə ˈ r ɔɪ d i ə /). Common usage frequently finds these names being also applied to ophiuroids , …
Asteroidea (Sea Stars) - Encyclopedia.com
These small disc-shaped animals discovered in the abyssal seas off New Zealand and Bahamas in the late 1980s are considered an evolutionary forerunner to asteroids. Sea stars have an …
The World Asteroidea Database - World Register of Marine Species
The Asteroidea (also known as sea stars or starfish) are among the most diverse and familiar of the living Echinodermata, including over 1800 species from every ocean basin in the world, …
All About the Animals Belonging to Class Asteroidea - ThoughtCo
2019年4月6日 · While the classification name, "Asteroidea," may not be familiar, the organisms it contains probably are. Asteroidea includes the sea stars, commonly called starfish. With about …
Sea star | Echinoderm Anatomy & Adaptations | Britannica
2025年1月6日 · sea star, any marine invertebrate of the class Asteroidea (phylum Echinodermata) having rays, or arms, surrounding an indistinct central disk. Despite their older common name, …
Asteroidea - Digital Atlas of Ancient Life
2020年5月26日 · Class Asteroidea Snapshot. Examples: sea stars and starfish; Ecology: marine; Key features of group: Mobile epifaunal carnivore; Diversity: ~4,320 living sp., ~1,237 extinct …
Sea Stars: Asteroidea - Encyclopedia.com
Sea stars live in the sea from the shore to the deepest ocean. They live in sea grass beds, under rock rubble, on coral reefs and rocky underwater cliffs, and in sand and mud. Sea stars eat …
Global Diversity and Phylogeny of the Asteroidea (Echinodermata)
We present a comprehensive overview of diversity and phylogeny as they have figured into the evolution of the Asteroidea from Paleozoic to the living fauna. Living post-Paleozoic asteroids, …
Starfish: Biology & Ecology of the Asteroidea - Oxford Academic
2013年8月5日 · Asteroids, popularly known as starfish or sea stars, are among the most readily recognized of marine animals. Asteroids are members of the Echinodermata, a major phylum …
Asterozoa - Wikipedia
The Asterozoa are a subphylum in the phylum Echinodermata, within the Eleutherozoa. Characteristics include a star-shaped body and radially divergent axes of symmetry.