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Starfish or sea
stars are star-shaped
echinoderms belonging to the
class Asteroidea (/ˌæstəˈrɔɪdiə/).
Common usage frequently finds these names being also...
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radially divergent axes of symmetry. The
subphylum includes the
class Asteroidea (the starfish), the
class Ophiuroidea (the
brittle stars and
basket stars)...
- Historically,
taxonomists believed that the
Ophiuroidea were
sister to the
Asteroidea, or that they were
sister to the (Holothuroidea + Echinoidea). However...
- parasites)
Eucycliophora Dicyemida Crinoidea (sea
lilies and
feather stars)
Asteroidea (star fish)
Ophiuroidea (brittle stars)
Echinoidea (sea urchins) Holothuroidea...
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Stelleroidea is a
superclass of
marine echinoderms including three classes:
Asteroidea: true sea
stars Ophiuroidea:
brittle stars and
basket stars Somasteroidea...
- 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...
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which represents all post-Paleozoic
asteroids within the
class Asteroidea.
class Asteroidea,
Infraclass Concentricycloidea,
Order Peripoda (or Peripodida)...
- New
Genus and Species, with
Notes on the
Zoroasteridae (Echinodermata;
Asteroidea).
Smithsonian contributions to
Zoology 64: 1–18. SI-repository 1970 -...
- 2020). "A new sponge-****ociated starfish,
Astrolirus patricki sp. nov. (
Asteroidea: Brisingida: Brisingidae), from the
northwestern Pacific seamounts". PeerJ...
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behavior of the Indo-Pacific
beach star,
Archaster typicus (Echinodermata;
Asteroidea)".
Marine Biology. 158 (3): 639–648. doi:10.1007/s00227-010-1588-0. PMC 3873073...