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Verena
Taxonomy
Verena was named by Adams and Adams (1854). It is extant.
It was reranked as Hemisinus (Verena) by Vaught et al. (1989).
It was assigned to Hemisinus by Vaught et al. (1989); and to Hemisininae by Nuttall (1990).
It was reranked as Hemisinus (Verena) by Vaught et al. (1989).
It was assigned to Hemisinus by Vaught et al. (1989); and to Hemisininae by Nuttall (1990).
Synonymy list
| Year | Name and author |
|---|---|
| 1854 | Verena Adams and Adams |
| 1989 | Hemisinus (Verena) Vaught et al. p. 28 |
| 1990 | Verena Nuttall p. 252 |
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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. Verena Adams and Adams 1854
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. P. Nuttall 1990 | Comparatively stout Thiaridac with broad sloping ramp and angular shoulder; spire angle 35°-80°; aperture about half shell height; columella truncated above anterior notch as in Hemisinus; spiral ribbing strong; collabral sculpture weak or absent except for growth lines; aperture with weak sinus developed on ramp, outer lip prosocyrt; operculum not seen; presumed ovoviviparous (see under V. crenocarina (below), embryonic shells extracted from inside adult). |
Measurements
No measurements are available
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| Source: superf = superfamily, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Collections
No collection or age range data are available