†order Cambridioida Horný 1957
Full reference: R. J. Horný. 1957. Problematic molluscs (?Amphineura) from the Lower Cambrian of southern and eastern Siberia (USSR). Sbornik Ustredního Ústavu Geologického 23:397-413
Parent taxon: Stenothecoida according to S.P. Koneva 1976
Sister taxa: Cambridiida, Cambridioidea, Hubeinella, Xianfengoconcha
Subtaxa: Cambridiacea
Ecology: suspension feeder
Distribution:
• Cambrian of Canada (4: British Columbia, Nova Scotia collections), China (2), Germany (1), Greenland (7), Kazakhstan (7), Kyrgyzstan (1), the Russian Federation (3), the United Kingdom (1), United States (3: Nevada, Utah)
• Solvan of Canada (5: British Columbia), Kazakhstan (1)
Total: 35 collections including 46 occurrences