Edrioasteroidea - Pyrgocystidae
Parent taxon: Pyrgocystidae according to C. D. Sumrall and S. Zamora 2011
See also Regnéll 1945, Regnéll 1966 and Sepkoski 2002
Sister taxa: Archaepyrgus, Argodiscus, Belochthus, Epipaston, Fanulodiscus, Moroccopyrgus, Streptaster
Subtaxa: Pyrgocystis cylindrica Pyrgocystis procera Pyrgocystis sardesoni Pyrgocystis sulcata Pyrgocystis varia
Type: Pyrgocystis sardesoni
Ecology: stationary low-level epifaunal suspension feeder
Distribution:
• Devonian of Germany (1 collection), Morocco (1)
• Silurian of Canada (1: Ontario), Sweden (3), United States (3: Iowa, New York)
• Ordovician to Silurian of United States (1: Illinois)
• Ordovician of the United Kingdom (1), United States (15: Illinois, Illinois, Iowa, Iowa, Iowa, Illinois, Minnesota, Oklahoma)
Total: 26 collections including 29 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.