†family Sactoceratidae Troedsson 1926 (mollusk)
Cephalopoda - Orthocerida - Sactoceratidae
Parent taxon: Pseudorthoceratoidea according to D. H. Evans 2000
Sister taxa: none
Subtaxa: Sactoceras
Ecology: nektonic carnivore
Distribution:
• Silurian of Canada (3: Manitoba, Ontario collections), the Czech Republic (2), Italy (1), the Russian Federation (3)
• Arenig of China (2)
• Ordovician of Canada (4: Ontario), China (4), Norway (3), Saudi Arabia (1)
Total: 23 collections including 24 occurrences