Paxillosida
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Template:Short description Template:Automatic taxobox
The Paxillosida are a large order of sea stars.
Characteristics
Paxillosida adults lack an anus and have no suckers on their tube feet. They do not develop the brachiolaria stage in their early development.[1] They possess marginal plates, and have sessile pedicellariae. They mostly inhabit soft-bottomed environments of sand or mud.[2]
Systematics
Recent analyses suggest Paxillosida may be a sister taxon of Asterina.[1] The order is divided into these families:[3]
- family Astropectinidae Gray, 1840
- family Benthopectinidae Verrill, 1899
- family Ctenodiscidae Sladen, 1889
- family Goniopectinidae Verrill, 1889
- family Luidiidae Sladen, 1889
- family Paleobenthopectinidae Blake, 1984 †
- family Porcellanasteridae Sladen, 1883
- family Pseudarchasteridae Sladen, 1889
- family Radiasteridae Fisher, 1916
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References
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- ↑ a b Matsubara, M., Komatsu, M., Araki, T., Asakawa, S., Yokobori, S.-I., Watanabe, K. & Wada, H. (2005) The phylogenetic status of Paxillosida (Asteroidea) based on complete mitochondrial DNA sequences. Molecular Genetics and Evolution, 36, 598–605
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- ↑ MarineSpecies.org - Paxillosida Perrier, 1884
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