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Sphenodus
Taxonomy
Sphenodus was named by Agassiz (1843) [Sepkoski's age data: J Sine T Dani Sepkoski's reference number: 884].
It was reranked as Lamna (Sphenodus) by Agassiz (1843).
It was assigned to Lamna by Agassiz (1843); to Lamninae by Hay (1902); to Lamnidae by Jordan (1963); to Hexanchiformes by Sepkoski (2002); and to Orthacodontidae by Grande and Chatterjee (1987), Duffin and Ward (1993), Rees (2000), Guinot et al. (2014) and Stumpf and Kriwet (2019).
It was reranked as Lamna (Sphenodus) by Agassiz (1843).
It was assigned to Lamna by Agassiz (1843); to Lamninae by Hay (1902); to Lamnidae by Jordan (1963); to Hexanchiformes by Sepkoski (2002); and to Orthacodontidae by Grande and Chatterjee (1987), Duffin and Ward (1993), Rees (2000), Guinot et al. (2014) and Stumpf and Kriwet (2019).
Species
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1843 | Lamna (Sphenodus) Agassiz p. 288 |
| 1843 | Sphenodus Agassiz p. 288 |
| 1889 | Orthacodus Woodward p. 349 |
| 1902 | Sphenodus Hay p. 302 |
| 1963 | Orthacodus Jordan p. 599 |
| 1963 | Sphenodus Jordan p. 599 |
| 1977 | Orthacodus Itoigawa p. 128 |
| 1981 | Orthacodus Uyeno et al. p. 84 figs. pl.1, fg. J, N-O |
| 1987 | Sphenodus Grande and Chatterjee |
| 1993 | Sphenodus Duffin and Ward p. 56 |
| 2000 | Sphenodus Rees p. 415 |
| 2002 | Sphenodus Sepkoski |
| 2014 | Sphenodus Guinot et al. p. 61 |
| 2019 | Sphenodus Stumpf and Kriwet p. 644 |
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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. †Sphenodus Agassiz 1843
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†Lamna (Sphenodus) longidens Agassiz 1843
†Lamna (Sphenodus) plana Agassiz 1843
†Sphenodus alpinus Guembel 1861
†Sphenodus helveticus de Beaumont 1960
†Sphenodus longidens Agassiz 1843
†Sphenodus nitidus Wagner 1862
†Sphenodus rectidens Emmons 1858
Invalid names: Orthacodus Woodward 1889 [objective synonym]
Diagnosis
No diagnoses are available