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Cassiope
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 Melanopsinae by Allison (1955); to Cassiopinae by Beurlen (1967); to Neotaenioglossa by Sepkoski (2002); and to Cassiopidae by Kase (1984), Bouchet et al. (2005), Banjac et al. (2007).
It was assigned to Melanopsinae by Allison (1955); to Cassiopinae by Beurlen (1967); to Neotaenioglossa by Sepkoski (2002); and to Cassiopidae by Kase (1984), Bouchet et al. (2005), Banjac et al. (2007).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1865 | Cassiope Coquand |
| 1955 | Cassiope Allison p. 416 |
| 1967 | Cassiope Beurlen p. 10 |
| 1984 | Cassiope Kase p. 112 |
| 2002 | Cassiope Sepkoski |
| 2005 | Cassiope Bouchet et al. pp. 45, 248 |
| 2007 | Cassiope Banjac et al. pp. 63 - 64 |
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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.
G. †Cassiope Coquand 1865
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Subg. †Cassiope (Cassiopella) Kase 1984
†Cassiope whitfieldi White 1874
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| 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. |
Measurements
No measurements are available
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| Source: subo = suborder, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004 | |||||
Age range: base of the Berriasian to the top of the Santonian or 143.10000 to 83.60000 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Berriasian - Valanginian | Japan | C. neumayri (91335) | |
| Hauterivian - Barremian | Japan | C. ogaii (91313) | |
| Late/Upper Barremian - Aptian | Japan (Honshu) | C. ogaii (50307) | |
| Aptian | United Kingdom (England) | C. pizuetana (1747) C. sp. (1773) | |
| Aptian | Mexico | C. muellerriedi (69906) C. suturosa, C. renevieri (69900) | |
| Late/Upper Aptian | Mexico (Baja California) | C. kleinpelli (1890) | |
| Late/Upper Aptian | Japan | C. sp. (91308) | |
| Albian | USA (Kansas) | C. sp. (2056) | |
| Middle Cenomanian - Late/Upper Cenomanian | USA (Utah) | C. utahensis (181692) | |
| Late/Upper Santonian | Austria | C. sp. (146295) | |
| Santonian | Austria | C. suffarcinata (176739) |