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Symmoriidae
Chondrichthyes - Symmoriiformes - Symmoriidae
Taxonomy
Symmoriidae was named by Dean (1909).
It was assigned to Cladodontida by Lund (1986); to Symmoriida by Zangerl (1981), Williams (1985), Goto et al. (1988) and Ivanov (1999); and to Symmoriiformes by Ginter et al. (2010) and Ivanov et al. (2013).
It was assigned to Cladodontida by Lund (1986); to Symmoriida by Zangerl (1981), Williams (1985), Goto et al. (1988) and Ivanov (1999); and to Symmoriiformes by Ginter et al. (2010) and Ivanov et al. (2013).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1875 | Physonemus chesterensis St. John and Worthen |
| 1875 | Physonemus parvulus St. John and Worthen |
| 1909 | Symmoriidae Dean |
| 1974 | Stethacanthidae Lund |
| 1981 | Symmoriidae Zangerl p. 69 |
| 1981 | Stethacanthidae Zangerl p. 71 |
| 1985 | Stethacanthidae Lund p. 2 |
| 1985 | Symmoriidae Williams p. 88 |
| 1986 | Stethacanthidae Lund p. 13 |
| 1986 | Symmoriidae Lund p. 18 |
| 1988 | Symmoriidae Goto et al. p. 292 |
| 1999 | Symmoriidae Ivanov p. 273 |
| 2001 | Stethacanthidae Coates and Sequeira |
| 2010 | Symmoriidae Ginter et al. p. 60 |
| 2013 | Symmoriidae Ivanov et al. p. 154 |
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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