This mentioned taxonomy is an attempt to make an conclusive assignment from the different classifications of various scientists. Because the taxonomy may change due to the latest investigative methods and other findings, our map is a guide only.
Corresponding author (Name, Year)
Ref.: L. R. Saul and R. L. Squires. 2008. Cretaceous trichotropid gastropods from the Pacific slope of North America: Possible pathways to calyptraeid morphology. The Nautilus 122(3):115-142