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Clava (Semivertagus)
Taxonomy
Semivertagus was named by Cossmann (1880) [Sepkoski's age data: K Maes R]. It is extant.
It was synonymized subjectively with Rhinoclavis by Houbrick (1992) and Harzhauser (2004); it was reranked as Clava (Semivertagus) by Pacaud and Le Renard (1995) and Hendy (2007).
It was assigned to Neotaenioglossa by Sepkoski (2002); and to Clava by Pacaud and Le Renard (1995) and Hendy (2007).
It was synonymized subjectively with Rhinoclavis by Houbrick (1992) and Harzhauser (2004); it was reranked as Clava (Semivertagus) by Pacaud and Le Renard (1995) and Hendy (2007).
It was assigned to Neotaenioglossa by Sepkoski (2002); and to Clava by Pacaud and Le Renard (1995) and Hendy (2007).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1880 | Semivertagus Cossmann |
| 1995 | Clava (Semivertagus) Pacaud and Le Renard p. 155 |
| 2002 | Semivertagus Sepkoski |
| 2007 | Clava (Semivertagus) Hendy |
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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.
Subg. Clava (Semivertagus) Cossmann 1880
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Diagnosis
No diagnoses are available