Cyclocystoidea - Cyclocystoididae
Parent taxon: Cyclocystoididae according to A. B. Smith and C.R.C. Paul 1982
See also Henderson and Shergold 1971, Parsley 1981, Regnéll 1945, Salter and Billings 1858 and Sepkoski 2002
Sister taxa: Actinodiscus, Apycnodiscus, Diastocycloides, Monocycloides, Narrawayella, Nicholsodiscus, Perforocycloides, Polytryphocycloides, Sievertsia, Zygocycloides
Subtaxa: Cyclocystoides halli Cyclocystoides latus Cyclocystoides scammaphoris Cyclocystoides tholicos
Type: Cyclocystoides halli
Ecology: stationary low-level epifaunal
Distribution:
• Ordovician of Canada (1: Ontario collection), the Russian Federation (1), United States (32: Illinois, Illinois, Iowa, Iowa, Kentucky, Minnesota, Ohio, Oklahoma, illinois)
Total: 34 collections including 38 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.