†family Xenasteridae Gregory 1899 (sea star)

Asteroidea - Hadrosida - Xenasteridae

Full reference: J. W. Gregory. 1899. On Lindstromaster and the classification of Palaeasterids. Geological Magazine 6:341-354

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

See also Blake 1989, Owen 1965, Schuchert 1915, Spencer 1916 and Spencer and Wright 1966

Sister taxa: Aulacolatiaster, Fandasteridae, Hudsonasteridae, Miomaster, Palaeasteridae, Pleiadeaster, Promopalaeasteridae, Spaniaster, Urasterellidae

Subtaxa: Agalmaster Devonaster Eifelaster Palaenectria Palaeostella Rhenaster Trimeraster Xenaster

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Type: Xenaster

Ecology: slow-moving low-level epifaunal carnivore

Distribution:

• Devonian of Canada (1: Quebec collection), Germany (2), United States (1: New York)

• Ordovician of United States (1: Kentucky)

Total: 5 collections each including a single occurrence

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