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Claviscala
Taxonomy
Claviscala was named by DeBoury (1909) [Sepkoski's age data: K Nc R]. It is extant.
It was reranked as Opalia (Claviscala) by Durham (1937); it was reranked as Turriscala (Claviscala) by MacNeil (1960).
It was assigned to Opalia by Durham (1937); to Turriscala by MacNeil (1960); to Neotaenioglossa by Sepkoski (2002); and to Epitoniidae by Squires and Saul (2003) and Kaim (2004).
It was reranked as Opalia (Claviscala) by Durham (1937); it was reranked as Turriscala (Claviscala) by MacNeil (1960).
It was assigned to Opalia by Durham (1937); to Turriscala by MacNeil (1960); to Neotaenioglossa by Sepkoski (2002); and to Epitoniidae by Squires and Saul (2003) and Kaim (2004).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1909 | Claviscala DeBoury |
| 1937 | Opalia (Claviscala) Durham p. 503 |
| 1960 | Turriscala (Claviscala) MacNeil p. 43 |
| 2002 | Claviscala Sepkoski |
| 2003 | Claviscala Squires and Saul p. 41 |
| 2004 | Claviscala Kaim p. 60 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. W. Durham 1937 | Shell large, elongate, spire very high; whorls convex; ornamented by curved axial ribs that do not reach suture; basal disk present, limited by a very prominent basal keel which is noticeable in the sutures, sometimes projecting; fine spiral growth lines present on sides of whorl and on the basal disk; aperture elongate. | |
| R. L. Squires and L. R. Saul 2003 | Shell acuminate, whorls joined, and not umbilicate. Flat-sided whorls bearing broad axial ribs and fine spiral lines. Basal keel strong. Aperture rectangular. No pitting on surface of shell (Bouchet & Waren, 1986; Weil et al., 1999). |