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Sethodisculus radians
Taxonomy
Haliomma radians was named by Ehrenberg (1841). It is extant. It is the type species of Sethodisculus.
It was recombined as Sethodisculus radians by Campbell (1954), Suzuki (2009).
It was recombined as Sethodisculus radians by Campbell (1954), Suzuki (2009).