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Helianthaster
Taxonomy
Helianthaster was named by Roemer (1864) [Sepkoski's age data: D Emsi-l D u]. Its type is Helianthaster rhenanus. It is the type genus of Helianthasterinae, Helianthasteridae. It was considered monophyletic by Blake (2009).
It was assigned to Lepidasteridae by Schuchert (1915); to Taeniactininae by Spencer (1927), Lehmann (1957); to Helianthasterinae by Owen (1965); to Hemizonida by Sepkoski (2002); and to Helianthasteridae by Spencer and Wright (1966), Blake (2009), Blake (2018).
It was assigned to Lepidasteridae by Schuchert (1915); to Taeniactininae by Spencer (1927), Lehmann (1957); to Helianthasterinae by Owen (1965); to Hemizonida by Sepkoski (2002); and to Helianthasteridae by Spencer and Wright (1966), Blake (2009), Blake (2018).
Species
H. rhenanus (type species)