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Sphenacanthus
Chondrichthyes - Sphenacanthidae
Taxonomy
Sphenacanthus was named by Agassiz (1837) [Sepkoski's age data: C Ms P]. It is the type genus of Sphenacanthidae.
It was assigned to Cestraciontidae by Woodward (1889); to Heterodontidae by Jordan (1963); to Ctenacanthida by Sepkoski (2002); and to Sphenacanthidae by Ivanov (1999), Pauliv et al. (2012), Ivanov et al. (2013) and Ivanov (2017).
It was assigned to Cestraciontidae by Woodward (1889); to Heterodontidae by Jordan (1963); to Ctenacanthida by Sepkoski (2002); and to Sphenacanthidae by Ivanov (1999), Pauliv et al. (2012), Ivanov et al. (2013) and Ivanov (2017).
Synonymy list
| Year | Name and author |
|---|---|
| 1837 | Sphenacanthus Agassiz p. 23 |
| 1889 | Sphenacanthus Woodward p. 241 |
| 1963 | Sphenacanthus Jordan p. 595 |
| 1999 | Sphenacanthus Ivanov p. 278 |
| 2002 | Sphenacanthus Sepkoski, Jr. |
| 2012 | Sphenacanthus Pauliv et al. p. 244 |
| 2013 | Sphenacanthus Ivanov et al. p. 154 |
| 2017 | Sphenacanthus Ivanov p. 724 |
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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
No diagnoses are available