What is "columbariinae"

Columbariinae, also known as pagoda shells, are a subfamily of large deepwater sea snails, marine gastropod mollusks in the family Turbinellidae. Some 60 extant species have been described.

This subfamily is in the family Turbinellidae within the clade Neogastropoda (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).