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Ischyodus
Taxonomy
Ischyodus was named by Egerton (1843) [Sepkoski's age data: J Bajo T Plio Sepkoski's reference number: 718,1066]. It is not extant.
It was synonymized subjectively with Edaphodon by Hay (1902).
It was assigned to Chimaeridae by Davis (1888), Woodward (1891), Chapman (1918), Chapman and Cudmore (1924) and Underwood (2002); to Chimaeriformes by Sepkoski (2002); to Callorhynchinae by Kriwet and Klug (2011); to Edaphodontidae by Applegate (1975), Cvancara and Hoganson (1993) and Johnson-Ransom et al. (2018); to Callorhinchidae by Nelson (2006) and Ebersole et al. (2022); and to Callorhynchidae by Hoganson and Erickson (2005), Otero et al. (2013), Marramà et al. (2018), Kent (2018), Hoganson et al. (2019) and Jambura et al. (2024).
It was synonymized subjectively with Edaphodon by Hay (1902).
It was assigned to Chimaeridae by Davis (1888), Woodward (1891), Chapman (1918), Chapman and Cudmore (1924) and Underwood (2002); to Chimaeriformes by Sepkoski (2002); to Callorhynchinae by Kriwet and Klug (2011); to Edaphodontidae by Applegate (1975), Cvancara and Hoganson (1993) and Johnson-Ransom et al. (2018); to Callorhinchidae by Nelson (2006) and Ebersole et al. (2022); and to Callorhynchidae by Hoganson and Erickson (2005), Otero et al. (2013), Marramà et al. (2018), Kent (2018), Hoganson et al. (2019) and Jambura et al. (2024).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1843 | Ischyodus Egerton |
| 1888 | Ischyodus Davis p. 42 |
| 1891 | Ischyodus Woodward p. 59 |
| 1918 | Ischyodus Chapman p. 24 |
| 1924 | Ischyodus Chapman and Cudmore p. 142 |
| 1975 | Ischyodus Applegate |
| 1993 | Ischyodus Cvancara and Hoganson p. 13 |
| 2002 | Ischyodus Sepkoski |
| 2002 | Ischyodus Underwood |
| 2005 | Ischyodus Hoganson and Erickson p. 715 |
| 2006 | Ischyodus Nelson p. 46 |
| 2011 | Ischyodus Kriwet and Klug p. 956 |
| 2013 | Ischyodus Otero et al. p. 24 figs. Fg. 7: 1-3 |
| 2018 | Ischyodus Johnson-Ransom et al. p. 366 |
| 2018 | Ischyodus Kent p. 54 |
| 2018 | Ischyodus Marramà et al. p. 287 |
| 2019 | Ischyodus Hoganson et al. p. 47 |
| 2022 | Ischyodus Ebersole et al. p. 373 |
| 2024 | Ischyodus Jambura et al. p. 4 |
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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. †Ischyodus Egerton 1843
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†Ischyodus avitus Meyer 1800
†Ischyodus beaumonti Egerton 1843
†Ischyodus bifurcatus Case 1978
†Ischyodus bohemicus Bayer 1905
†Ischyodus dufrenoyi Egerton 1843
†Ischyodus egertoni Buckland 1835
†Ischyodus emarginatus Egerton 1843
†Ischyodus incisus Newton 1878
†Ischyodus latus Newton 1878
†Ischyodus mortoni Chapman and Pritchard 1907
†Ischyodus panus Newton 1878
†Ischyodus quenstedti Wagner 1857
†Ischyodus rayhaasi Hoganson and Erickson 2005
†Ischyodus thurmanni Pictet and Campiche 1878
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Invalid names: Ischyodus brevirostris Newton 1876 [synonym]
†Ischyodus townsendi Buckland 1835
†Ischyodus yanschini Averianov 1991
†Ischyodus zinsmeisteri Applegate 1975
Diagnosis
No diagnoses are available