Full reference: J. Hall. 1883. Untitled Contractual Obligation Memorandum. Indiana Department of Geology and Natural Resources Annual Report 12:319-375
See also Sepkoski 2002
Sister taxa: Actinodesma, Actinopterella, Actinopteria, Caneyella, Cornellites, Cyrtodontarca, Denticelox, Ectenodesma, Guichiella, Leptodesma, Limoptera, Molinicola, Palaeopteria, Placopterina, Pseudobakewellia, Pterinea, Pteronitella
Ecology: stationary epifaunal suspension feeder
• Pennsylvanian of China (1 collection)
• Devonian of Australia (2), Canada (3: Northwest Territories, Nunavut), China (4), France (1), Germany (2), Libya (1), New Zealand (1), the United Kingdom (5), United States (64: Iowa, Michigan, New York, Ohio, Pennsylvania), Venezuela (2)
• Silurian of the United Kingdom (6)
Total: 94 collections including 95 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.