|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Gastropoda - Architectibranchia - Cylindrobullinidae
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.
|J. Gründel and A. Nützel 2012||The shell is cylindrical to spindle-shaped and tapers on both ends (anterior and posterior) (bulliform). The last whorl covers all previous whorls entirely (convolute). The aperture is elongated and narrow and extends on the posterior end of the shell. The columella has a single weak fold.|