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Taxon:
Order †
Petalichthyiformes
(fish)
Taxa
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Hierarchy
Nomenclature
Taxonomy
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Entity:
†Placodermi (Class)
..†Acanthothoraci (Order)
..[†Acanthothoraciformes] (Order)
..[†Antiarcha] (Order)
..[†Antiarchi] (Order)
..†Antiarchi ([unranked]) - antiarchs
..[†Antiarchiformes] (Order) - antiarchs
..[†Arthrodira] (Order)
..†Arthrodira ([unranked])
..[†Arthrodiriformes] (Order) - arthrodires
..†Brindabellaspida (Order)
..†Cratoselachiidae (Family)
..[†Macropetalichthyida] (Order)
..†Macropetalichthyiformes (Order)
..†Oestophorus (Genus)
..[†Palaeospondyloidea] (Order)
..[†Petalichthida] (Order)
..[†Petalichthyida] (Order)
..[†Phyllolepida] (Order)
..[†Pseudopetalichthida] (Order)
..[†Pseudopetalichthyda] (Order)
..†Pseudopetalichthyiformes (Order)
..[†Ptyctodontida] (Order)
..†Ptyctodontiformes (Order)
..†Rhenanida (Order)
..[†Rhenaniformes] (Order)
..[†Stegoselachii] (Order)
..[†Stensioellida] (Order)
..†Stensioelliformes (Order)
..[†Petalichthyiformes] (Order)
....†Diandongpetalichthys (Genus)
....†Ellopetalichthys (Genus)
....†Epipetalichthys (Genus)
....†Eurycaraspis (Genus)
....†Litilpetalichthyes (Genus)
....[†Macropetalicthys] (Genus)
....†Neopetalichthys (Genus)
....†Notopetalichthys (Genus)
....†Shearsbyaspis (Genus)
....†Wijdeaspis (Genus)
....†Xinanpetalichthyes (Genus)
Variants
Former termination
:
†
Petalichthyida
(Order)
Jaekel, 1911
Ref:
J.S. Nelson, 2006
: 37.
[indirect]
Synonyms
Accepted name
:
†
Macropetalichthyiformes
(Order)
Ref:
R. van der Laan, 2018
: 29; [<22 Mar 2025] [Nelson et al., 2016: 39].
[indirect]
Accepted name
:
†
Petalichthyida
([unranked])
Jaekel, 1911
Ref:
PBDB
: 30 Apr 2013.
©2004-2026 Universal Taxonomic Services
Last updated:
28 Aug 2026