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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), Ivanov et al. (2013), Nelson et al. (2016) and Ginter (2018).
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), Ivanov et al. (2013), Nelson et al. (2016) and Ginter (2018).
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 |
| 1902 | Physonemus chesterensis Hay p. 333 |
| 1902 | Physonemus parvulus Hay p. 333 |
| 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 |
| 2016 | Symmoriidae Nelson et al. p. 46 |
| 2018 | Symmoriidae Ginter p. 394 |
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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.
Fm. †Symmoriidae Dean 1909
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G. †Orestiacanthus Lund 1984
G. †Petrodus McCoy 1848
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†Petrodus acutus Newberry and Worthen 1866
†Petrodus patelliformis McCoy 1848
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Invalid names: Petrodus buttersi Newberry 1889 [synonym], Petrodus occidentalis Newberry and Worthen 1866 [synonym]
†Petrodus pustulosus Newberry and Worthen 1870
G. †Stethacanthulus Zangerl 1990
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†Stethacanthulus longipeniculus Zangerl 1990
†Stethacanthulus meccaensis Williams 1985
G. †Stethacanthus Newberry 1889
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†Stethacanthus altonensis St. John and Worthen 1875
†Stethacanthus compressus Newberry 1897
†Stethacanthus concavus Ginter 2018
†Stethacanthus depressus Stjohn and Worthen 1875
†Stethacanthus erectus Eastman 1903
†Stethacanthus exilis Hussakof 1913
†Stethacanthus gansuensis Wang et al. 2004
†Stethacanthus humilis Hussakof 1913
†Stethacanthus longipeniculus Zangerl 1990
†Stethacanthus praecursor Hussakof and Bryant 1918
†Stethacanthus productus Newberry 1897
†Stethacanthus tumidus Newberry 1889
Invalid names: Cladodus hibberti Agassiz 1843 [nomen dubium], Pinegocaptus Minikh 2006 [synonym]
Invalid names: Stethacanthidae Lund 1974 [synonym]
Diagnosis
No diagnoses are available