Rhynchonellata - Atrypida - Cyclospiridae
Synonym: Cyclorhynchia
Parent taxon: Cyclospiridae according to A. Williams et al. 2002
See also Jin and Chatterton 1997, Macomber 1970, Mitchell 1977, Rõõmusoks 1964, Sepkoski 2002 and Zhan and Jin 2005
Sister taxon: Rozmanospira
Subtaxa: Cyclospira bisulcata Cyclospira elegantula Cyclospira levisulcata Cyclospira nana Cyclospira orbus Cyclospira perplexa Cyclospira scanica
Type: Orthis bisulcata
Ecology: stationary epifaunal suspension feeder
Distribution:
• Silurian of Canada (1: Northwest Territories collection), China (1), Estonia (1), Norway (4), the United Kingdom (3)
• Ordovician of Australia (1), Belgium (5), Canada (25: Northwest Territories, Nunavut, Ontario, Quebec), China (7), the Czech Republic (3), Estonia (2), Italy (2), Norway (1), the Russian Federation (1), Sweden (2), the United Kingdom (21), United States (25: Alaska, Georgia, Illinois, Iowa, Maine, Minnesota, Oklahoma, Virginia, Wyoming)
Total: 105 collections including 111 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.