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Cassiope

Gastropoda - Sorbeoconcha - Cassiopidae

Taxonomy
Cassiope was named by Coquand (1865) [Sepkoski's age data: K Apti-l K Camp Sepkoski's reference number: 4,157,1066].

It was assigned to Cassiopinae by Beurlen (1967); to Neotaenioglossa by Sepkoski (2002); and to Cassiopidae by Kase (1984), Bouchet et al. (2005) and Banjac et al. (2007).

Synonymy list
YearName and author
1865Cassiope Coquand
1967Cassiope Beurlen p. 10
1984Cassiope Kase p. 112
2002Cassiope Sepkoski, Jr.
2005Cassiope Bouchet et al. pp. 45, 248
2007Cassiope Banjac et al. pp. 63 - 64

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
RankNameAuthor
phylumMollusca
classGastropodaCuvier 1797
orderSorbeoconchaPonder and Lindberg 1997
superfamilyCerithioidea(FĂ©russac 1819)
familyCassiopidae(Beurlen 1967)
genusCassiopeCoquand 1865

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.

Diagnosis
ReferenceDiagnosis
N. D. Banjac et al. 2007The 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.