Overview
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The subclass Euechinoidea includes almost all living species of , and fossil forms going back as far as the Triassic.
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Taxonomy
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The Subclass Euechinoidea is a member of the Class Echinoidea. Here is the complete "parentage" of Euechinoidea:
- Domain: Eukaryota
Whittaker & Margulis,1978 - eukaryotes
- Kingdom: Animalia
Linnaeus, 1758 - animals
- Subkingdom: Bilateria
(Hatschek, 1888) Cavalier-Smith, 1983 - bilaterians
- Branch: Deuterostomia
Grobben, 1908 - Deuterostomes
- Infrakingdom: Coelomopora
(Marcus, 1958) Cavalier-Smith, 1998
- Phylum: Echinodermata
Klein, 1734 Ex De Brugière, 1789
- Subphylum: Eleutherozoa
Bell, 1891
- Infraphylum: Echinozoa
Haeckel, in Von Zittell, 1895
- Class: Echinoidea
(ek-in-OY-dee-a)
- Sea Urchins and Sand Dollars
- Subclass: Euechinoidea
- Class: Echinoidea
(ek-in-OY-dee-a)
- Sea Urchins and Sand Dollars
- Infraphylum: Echinozoa
Haeckel, in Von Zittell, 1895
- Subphylum: Eleutherozoa
Bell, 1891
- Phylum: Echinodermata
Klein, 1734 Ex De Brugière, 1789
- Infrakingdom: Coelomopora
(Marcus, 1958) Cavalier-Smith, 1998
- Branch: Deuterostomia
Grobben, 1908 - Deuterostomes
- Subkingdom: Bilateria
(Hatschek, 1888) Cavalier-Smith, 1983 - bilaterians
- Kingdom: Animalia
Linnaeus, 1758 - animals
The Subclass Euechinoidea is further organized into finer groupings including:
- Order (13): Arbacioida · Cassiduloida · Clypeasteroida · Diadematoida · Echinoida · Echinothurioida · Holectypoida · Pedinoida · Phymosomatoida · Pourtalesioida · Salenioida · Spatangoida · Temnopleuroida
Orders
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Arbacioida
Cassiduloida
Clypeasteroida
Sand dollars (order Clypeasteroida) are flat, round marine animals related to sea urchins (), sea stars, and other echinoderms. [more]
Diadematoida
Diadematidae is a family descending from the class , comprising sea urchins and snails. [more]
Echinoida
Echinothurioida
Holectypoida
Pedinoida
Phymosomatoida
Pourtalesioida
Salenioida
Spatangoida
Temnopleuroida
At least 42 species and subspecies belong to the Order Temnopleuroida.
More info about the Order Temnopleuroida may be found here.
Sources
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- The text on this page is licensed under the GNU Free Documentation License. It includes material from Wikipedia retrieved Friday, November 14, 2008.
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