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|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Gastropoda - Bellerophontida - Bellerophontidae
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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.
|R. L. Batten 1995||Small bellerophontiform gastropods with equally well-developed revolving and collabral lirae forming reticulate ornament pattern. Whorl profile broadly rounded on dorsum but interrupted by a raised, convex selenizone. Profile becomes flat to concave in the umbilical regions. Narrowly phaneromphalus to anomphalus. Revolving ornament slightly more strongly developed adjacent to selenizone on upper dorsum. Convex selenizone ornamented by three revolving lirae and well-developed lunulae; bordered by narrow troughs that lack ornament. About 20 equally spaced revolving lirae. Collabral ornament is spaced about the same as revolving elements. No ornament in umbilical regions.|