Sister taxa: Ambercyclus, Calliotropinae, Calliotropis, Eucycloidea, Eucyclomphalus, Eucycloscalinae, Eucyclus, Gerasimovcyclus, Mistelgauia, Neoeunema, Trochonodus, Trypanotrochus, Paleunema, Onkospira
Ecology: epifaunal grazer
• Jurassic of Argentina (1), Chile (7), France (4), Germany (2), Greenland (9), Hungary (2), India (3), Italy (1), New Zealand (1), Saudi Arabia (1), Switzerland (5), the United Kingdom (11), United States (1: Utah)
Total: 62 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.