Hyolitha - Hyolithida - Sulcavitidae
Full reference: V. A. Syssoiev. 1958. Superorder Hyolithoidea. Osnovy paleontologii. Molluski−golovonogie 2:184-190
Parent taxon: Hyolithina according to D. W. Fisher 1962
See also Kruse 2002
Sister taxa: Ceratothecidae, Pterygothecidae
Subtaxa: Ambrolinevitus Burithes Dorsolinevitus Kulangarra Lenalituus Linevitus Ningqiangethus Paraeonovitatus Sulcavitus Trapezovitus Tuojdachithes Yankongovitus
Ecology: facultatively mobile epifaunal suspension feeder
Distribution:
• Ordovician of Sweden (1 collection)
• Delamaran of Canada (3: Alberta, British Columbia), United States (1: Utah)
• Waucoban of Greenland (1)
• Cambrian of Australia (5), China (38), Germany (1), Kazakhstan (5), Kyrgyzstan (3), Mongolia (2), Poland (1), the Russian Federation (23)
Total: 84 collections including 116 occurrences