Cyclocystoidea - Cyclocystoididae
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
See also Sepkoski 2002
Sister taxa: Actinodiscus, Apycnodiscus, Cyclocystoides, Diastocycloides, Monocycloides, Narrawayella, Nicholsodiscus, Perforocycloides, Polytryphocycloides, Sievertsia
Subtaxa: Zygocycloides magnus Zygocycloides marstoni Zygocycloides raymondi Zygocycloides variabilis
Type: Zygocycloides variabilis
Ecology: stationary low-level epifaunal
Distribution: found only at Arnheim - type Cincinnatian (Ordovician of Ohio)
Specimen images are retrieved through the ePANDDA API.
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