Stenolaemata - Cryptostomata - Arthrostylidae
Parent taxon: Arthrostylidae according to A. Jiménez-Sánchez 2009
See also Bassler 1953, Lobdell 1992 and Sepkoski 2002
Sister taxa: Arthroclema, Arthrostyloecia, Arthrostylus, Arthrotrypa, Cuneatopora, Glauconome, Glauconomella, Heloclema, Helopora, Heminematopora, Hemiulrichostylus, Hexites, Moyerella, Nematopora, Nematoporella, Paracuneatopora, Permoheloclema, Pseudonematopora, Sceptropora
Subtaxa: Ulrichostylus costatus Ulrichostylus dakotensis Ulrichostylus divaricatus Ulrichostylus radiatus
Type: Helopora divaricatus
Ecology: stationary epifaunal suspension feeder
Distribution:
• Chazyan of Canada (4: Northwest Territories collections)
• Ordovician of Australia (1), Canada (1: Northwest Territories), France (1), India (3), Mongolia (1), Spain (4), United States (5: New York, North Dakota)
Total: 20 collections including 22 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.