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Sievertsia Smith and Paul 1982

Cyclocystoidea - Cyclocystoididae

PaleoDB taxon number: 30791

Full reference: A. B. Smith and C.R.C. Paul. 1982. Revision of the Class Cyclocystoidea (Echinodermata). Philosophical Transactions of the Royal Society of London, Series B 296:577-679

Parent taxon: Cyclocystoididae according to A. B. Smith and C.R.C. Paul 1982

Sister taxa: Actinodiscus, Apycnodiscus, Cyclocystoides, Diastocycloides, Monocycloides, Narrawayella, Nicholsodiscus, Perforocycloides, Polytryphocycloides, Zygocycloides

Subtaxa: Sievertsia concava, Sievertsia devonica, Sievertsia gotus, Sievertsia tartas

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Type: Sievertsia devonica

Ecology: stationary low-level epifaunal