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Pachyosteus

Arthrodira - Selenosteidae

Taxonomy
Pachyosteus was named by Jaeckel (1903) [Sepkoski's age data: D Fras-u Sepkoski's reference number: 521]. It is not extant.

It was assigned to Dinichthyidae by Jordan (1963); to Arthrodira by Sepkoski (2002); and to Selenosteidae by Rücklin (2011).

Synonymy list
YearName and author
1903Pachyosteus Jaeckel
1963Pachyosteus Jordan p. 588
2002Pachyosteus Sepkoski, Jr.
2011Pachyosteus Rücklin pp. 56 - 57

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
OlfactoresJefferies 1991
subphylumVertebrata
RankNameAuthor
Gnathostomata()
Osteichthyes()
subclassPlacodermi(M'Coy 1848)
orderArthrodiraWoodward 1891
familySelenosteidaeDean 1901
genusPachyosteusJaeckel 1903

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