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Monotypic taxon:
Order †
Petalichthyida
Jaekel, 1911
(fish)
Taxa
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Hierarchy
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Entity:
†Placodermi (Class)
..†Acanthothoraci (Order)
..[†Acanthothoraciformes] (Order)
..[†Antiarcha] (Order)
..†Antiarchi ([unranked]) - antiarchs
..[†Antiarchi] (Order)
..[†Antiarchiformes] (Order) - antiarchs
..[†Arthrodira] (Order)
..†Arthrodira ([unranked])
..[†Arthrodiriformes] (Order) - arthrodires
..†Brindabellaspida (Order)
..†Cratoselachiidae (Family)
..[†Macropetalichthyida] (Order)
..†Macropetalichthyiformes (Order)
..†Oestophorus (Genus)
..[†Palaeospondyloidea] (Order)
..[†Petalichthida] (Order)
..[†Petalichthyiformes] (Order)
..[†Phyllolepida] (Order)
..[†Pseudopetalichthida] (Order)
..[†Pseudopetalichthyda] (Order)
..†Pseudopetalichthyiformes (Order)
..[†Ptyctodontida] (Order)
..†Ptyctodontiformes (Order)
..†Rhenanida (Order)
..[†Rhenaniformes] (Order)
..[†Stegoselachii] (Order)
..[†Stensioellida] (Order)
..†Stensioelliformes (Order)
..[†Petalichthyida] (Order)
Variants
Incorrect spelling
:
†
Petalichthida
(Order)
Ref:
M.J. Benton, 2005
: 390.
[indirect]
Current termination
:
†
Petalichthyiformes
(Order)
Ref:
J.S. Nelson, 2006
: 37.
[indirect]
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Last updated:
28 Aug 2026