Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy External Literature Search Age range and collections

Psammodontiformes

Chondrichthyes - Psammodontiformes

Taxonomy
Psammodontiformes was named by Obruchev (1953). It is not extant.

It was assigned to Chondrichthyes by Sepkoski (2002); to Holocephalimorpha by Nelson (2006); and to Holocephalomorpha by Long (2011).

Synonymy list
YearName and author
1953Psammodontiformes Obruchev
2002Psammodontiformes Sepkoski, Jr.
2006Psammodontiformes Nelson p. 44
2011Psammodontiformes Long p. 242

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
RankNameAuthor
superclassGnathostomata
classChondrichthyes
subclassHolocephali(Bonaparte 1832)
superorderHolocephalomorphaLund 1986
orderPsammodontiformesObruchev 1953
orderPsammodontiformesObruchev 1953

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