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Physonemus

Chondrichthyes -

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); and to Holocephali by Nassichuk (1971).

Synonymy list
YearName and author
1837Onchus (Physonemus) Agassiz p. 3
1843Physonemus Agassiz p. 177
1902Physonemus Hay p. 333
1903Physonemus Eastman p. 204
1963Physonemus Jordan p. 595
1971Physonemus Nassichuk

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
RankNameAuthor
subphylumVertebrata
superclassGnathostomata
classChondrichthyes
subclassHolocephali(Bonaparte 1832)
genusPhysonemus

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