Thrissacanthias
Encyclopedia
Thrissacanthias are a genus of the family of sea stars of Astropectinidae
Astropectinidae
Astropectinidae is a family of sea stars in the order Paxillosida.-Genera:* Astropecten Gray, 1840 * Bathybiaster * Dipsacaster Alcock, 1893 * Dytaster * Leptychaster Smith, 1876 * Persephonaster...

in the order Paxillosida.
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