|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Gastropoda - Sorbeoconcha - Cassiopidae
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.
|N. D. Banjac et al. 2007||The shell is conical with flattened whorls angled at the base. The ornament consists of spiral threads and rows of nodes. The growth line pattern is sinuous with a shallow bay below the suture. The base is flattened to weakly convex and may have a small slit-like umbilicus. The aperture is simple and of elongated oval shape (WENZ 1938; CLEEVELY & MORRIS 1988). The protoconch consists of three rounded whorls forming a conical shell, ornamented by two spiral ribs in its larval shell portion (BANDEL 1993, pl. 4, fig. 6; KOWALKE & BANDEL 1996). The genotype has an up to 40 mm high shell that consists of about ten whorls with a regular increase in size. Ornament consists of spiral ribs, sometimes increasing in number at latest whorls. In addition to the main spiral ribs, there may be fine spiral threads.|