†subfamily Armathyrasterinae Harper and Morris 1978 (brittle star)

Ophiuroidea - Encrinasteridae

Full reference: J. A. Harper and R. W. Morris. 1978. An new encrinasterid ophiuroid from the Conemaugh Group (Pennsylvanian) of Western Pennsylvania, and revision of the Encrinasteridae. Journal of Paleontology 52(1):155-163

Parent taxon: Encrinasteridae according to J. A. Harper and R. W. Morris 1978

Sister taxa: Cheiropteraster, Encrinaster, Encrinasterinae, Euzonosoma, Loriolaster, Mastigactis, Urozoma

Subtaxa: Armathyraster

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Type: Armathyraster

Ecology: slow-moving low-level epifaunal detritivore-suspension feeder

Distribution: found only at West End School, Punxsutawney (Carboniferous of Pennsylvania)

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