ASTERIIDAE (Fisher, 1940)
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https://doi.org/ 10.1111/j.1096-3642.2010.00688.x |
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https://treatment.plazi.org/id/03E687F8-FFA1-FFA6-3CEF-2317FBA358DD |
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Valdenar |
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ASTERIIDAE |
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THE ASTERIIDAE View in CoL : OVERVIEW
The restricted Asteriidae contains four primary clades, representing the most recent and diverse radiation of taxa within the Forcipulatacea. Three are associated with discrete biogeographic regions, whereas the fourth ( Sclerasterias ) is widely distributed in the Atlantic, Pacific, and Indian oceans. These clades include: (1) the boreal clade, which includes primarily genera from the Northern Hemisphere, although one or two exceptional Southern Hemisphere genera are also included; (2) the Sclerasterias clade, including ~14 globally distributed species; and (3) and (4), the Antarctic and pantropical clades, which are strongly supported (94% on the two-gene tree; 97% on the three-gene tree) as sister taxa in both of our trees ( Figs 2 View Figure 2 , 3 View Figure 3 ). The Antarctic clade includes nominal Asteriidae , which are present only in the Southern Ocean and adjacent regions. The pantropical clade includes several asteriid genera that occur primarily at low latitudes, often in shallowwater, tropical settings.
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