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

Petalichthyida

Petalichthyida

Taxonomy
Petalichthyida is an order.

It was synonymized subjectively with Petalichthyiformes by Long (2011).

It was assigned to Arthrodira by Obruchev (1964); to Placodermi by Denison (1975); and to Placodermi by Denison (1978), Dineley and Metcalf (1999), Sepkoski (2002) and Young (2010).

Synonyms
Synonymy list
YearName and author
1964Petalichthyida Obruchev p. 217
1975Petalichthyida Denison p. 23
1978Petalichthyida Denison
1999Petalichthyida Dineley and Metcalf p. 11
2002Petalichthida Sepkoski, Jr.
2010Petalichthyida Young p. 527
2011Petalichthyiformes Long p. 242

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

RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
OlfactoresJefferies 1991
RankNameAuthor
subphylumVertebrata
Gnathostomata()
Osteichthyes()
subclassPlacodermi(M'Coy 1848)
orderPetalichthyida
orderPetalichthyida

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