Echinoderms (Phylum Echinodermata) are a phylum of marine animals. Echinoderms are found at every ocean depth, from the intertidal zone to the abyssal zone. Aside from the problematic Arkarua, the first definitive members of the phylum appeared near the start of the Cambrian period. Image:Mantell's Iguanodon restoration.jpg This article is a . You can help My English Wiki by expanding it.
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| - Echinoderms (Phylum Echinodermata) are a phylum of marine animals. Echinoderms are found at every ocean depth, from the intertidal zone to the abyssal zone. Aside from the problematic Arkarua, the first definitive members of the phylum appeared near the start of the Cambrian period. Image:Mantell's Iguanodon restoration.jpg This article is a . You can help My English Wiki by expanding it.
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Kingdom
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Name
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fossil range
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Superphylum
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Domain
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subdivisions
| - *Homalozoa † (Gill & Caster, 1960)
:Homostelea †
:Homoiostelea †
:Stylophora †
:Ctenocystoidea † (Robison & Sprinkle, 1969)
*Crinozoa
:Crinoidea
:Paracrinoidea † (Regnéll, 1945)
:Cystoidea † (von Buch, 1846)
*Asterozoa
:Ophiuroidea
:Asteroidea
*Echinozoa
:Echinoidea
:Holothuroidea
:Ophiocistioidea †
:Helicoplacoidea †
:?Arkarua †
*Pelmatozoa †
:Edrioasteroidea †
*Blastozoa †
:Blastoidea †
:Eocrinoidea †(Jaekel, 1899)
† = Extinct
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Phylum
| - Echinodermata
- (Klein, 1734)
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Subkingdom
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abstract
| - Echinoderms (Phylum Echinodermata) are a phylum of marine animals. Echinoderms are found at every ocean depth, from the intertidal zone to the abyssal zone. Aside from the problematic Arkarua, the first definitive members of the phylum appeared near the start of the Cambrian period. Image:Mantell's Iguanodon restoration.jpg This article is a . You can help My English Wiki by expanding it.
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