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Physonemus
Taxonomy
Physonemus was named by Agassiz (1843). It is considered to be a form taxon. Its type is Physonemus arcuatus.
It was reranked as Onchus (Physonemus) by Agassiz (1837).
It was assigned to Onchus by Agassiz (1837); to Ichthyodorulites by Hay (1902); to Cochliodontidae by Eastman (1903); to Heterodontidae by Jordan (1963); to Holocephali by Nassichuk (1971); to Edestidae by Zidek (1976); and to Elasmobranchii by Elliot et al. (2004).
It was reranked as Onchus (Physonemus) by Agassiz (1837).
It was assigned to Onchus by Agassiz (1837); to Ichthyodorulites by Hay (1902); to Cochliodontidae by Eastman (1903); to Heterodontidae by Jordan (1963); to Holocephali by Nassichuk (1971); to Edestidae by Zidek (1976); and to Elasmobranchii by Elliot et al. (2004).
Species
Batacanthus baculiformis, Batacanthus necis, Batacanthus stellatus, Gnathacanthus striatus, Gnathacanthus triangularis, P. arcuatus (type species), P. asper, P. carinatus, P. gemmatus, P. gigas, P. gigii, P. hamuspiscatorius, P. mirabilis, P. pandatus, P. stellatus, P. striatus, P. subteres, Xystracanthus acinaciformis, Xystracanthus anceps, Xystracanthus giganteus, Xystracanthus gracilis, Xystracanthus major, Xystracanthus mirabilis, Xystracanthus reversus
Synonyms
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Synonymy list
Year | Name and author |
---|---|
1837 | Onchus (Physonemus) Agassiz p. 3 |
1843 | Physonemus Agassiz p. 177 |
1859 | Xystracanthus Leidy |
1866 | Drepanacanthus Newberry and Worthen |
1870 | Batacanthus St John and Worthen |
1873 | Xystracanthus Leidy p. 353 |
1879 | Xystracanthus Waagen p. 18 |
1883 | Gnathacanthus Davis p. 363 |
1902 | Physonemus Hay p. 333 |
1902 | Xystracanthus Hay p. 333 |
1902 | Batacanthus Hay p. 334 |
1903 | Physonemus Eastman p. 204 |
1916 | Batacanthus Branson p. 656 |
1963 | Batacanthus Jordan p. 593 |
1963 | Xystracanthus Jordan p. 593 |
1963 | Physonemus Jordan p. 595 |
1971 | Physonemus Nassichuk |
1976 | Physonemus Zidek pp. 183 - 185 |
2004 | Physonemus Elliot et al. p. 275 |
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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. †Physonemus Agassiz 1843
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†Physonemus arcuatus McCoy 1848
†Physonemus asper Leidy 1859
†Physonemus carinatus Saint John and Worthen 1875
†Physonemus gemmatus Newberry and Worthen 1866
†Physonemus gigas Newberry and Worthen 1870
†Physonemus gigii Branson 1916
†Physonemus hamuspiscatorius Eastman 1903
†Physonemus mirabilis St John and Worthen 1875
†Physonemus pandatus Eastman 1903
†Physonemus stellatus Newberry 1889
†Physonemus striatus Moore 1929
†Physonemus subteres Agassiz 1843
Invalid names: Batacanthus St John and Worthen 1870 [synonym], Drepanacanthus Newberry and Worthen 1866 [synonym], Gnathacanthus Davis 1883 [synonym], Xystracanthus Leidy 1859 [synonym]
Diagnosis
No diagnoses are available