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Machaerognathus

Arthrodira - Dinichthyidae

Taxonomy
Machaerognathus was named by Hussakof and Bryant (1919) [Sepkoski's age data: D Fras-l Sepkoski's reference number: 521]. It is not extant.

It was assigned to Dinichthyidae by Jordan (1963); and to Arthrodira by Sepkoski (2002).

Synonymy list
YearName and author
1919Machaerognathus Hussakof and Bryant
1963Machaerognathus Jordan p. 588
2002Machaerognathus Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
OlfactoresJefferies 1991
subphylumVertebrata
Gnathostomata()
RankNameAuthor
Osteichthyes()
subclassPlacodermi(M'Coy 1848)
orderArthrodiraWoodward 1891
EubrachythoraciMiles 1971
AspinothoracidiMiles and Dennis 1979
familyDinichthyidaeNewberry 1888
genusMachaerognathusHussakof and Bryant 1919

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