†family Helianthasteridae Owen 1965 (sea star)

Asteroidea - Euaxosida - Helianthasteridae

Full reference: H. G. Owen. 1965. A monograph of the British Palaeozoic Asterozoa. Table of contents, supplement and index. Monograph of the Palaeontographical Society, London 1964:541-583

Parent taxon: Euaxosida according to D. B. Blake 2018

See also Blake 1989, Blake 2009, Gale 1987, Owen 1965, Schuchert 1915, Spencer and Wright 1966 and Welsh 1984

Sister taxa: Cnemidactinidae, Devonistella, Eoactis, Lacertasteridae, Lepidasteridae, Lepidasterina, Lepyriactis, Mesopalaeasteridae, Omanasteridae, Palasterinidae, Platanasteridae, Schondorfia, Taeniactis

Subtaxa: Arkonaster Helianthaster Helianthasterinae

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Type: Helianthaster

Ecology: slow-moving low-level epifaunal carnivore

Distribution:

• Devonian of Canada (1: Ontario collection), Germany (1)

Total: 2 collections each including a single occurrence

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