|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Gastropoda - Purpurinidae
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|C. S. Cataldo 2014||However, the genera in this family, (e.g., Leviathania Golovinova and Korotkov, 1986) differ from Harpagodes by their wide, flat and subhorizontal subsutural ramp, limited by a prominent shoulder usually bearing strong nodes or coarse spines.|