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Taxon:
Subclass
Petromyzontida
- lampreys
(fish)
Taxa
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Hierarchy
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Entity:
[Agnatha] (Class)
..[†Anaspida] (Order) - anaspids
..[Cephalaspidomorpha] (Subclass)
..[Cephalaspidomorphi] (Subclass)
..[†Conodonta] (Subclass)
..[Cyclostomata] (Subclass)
..[†Myllokunmingiida] (Subclass)
..[Myxinoidea] (Order) - hagfishes
..[Myxinoidea] (Subclass) - hagfishes
..[ostracoderms]
..[Petromyzoniformes] (Order)
..[Petromyzontia] (Order)
..[†Pteraspidomorphi] (Subclass)
..[†Thelodonti] (Order)
..[†Thelodonti] (Subclass)
..[†unnamed] (Subclass)
..[Petromyzontida] (Subclass) - lampreys
Types
Nominotypical taxon [ICZN]
:
Petromyzontiformes
(Order)
Berg, 1940
Variants
Current rank
:
Petromyzontida
(Class)
Ref:
J.S. Nelson et al., 2016
: 23.
[inferred]
Current rank
:
Petromyzontida
(Infraclass)
Ref:
M.J. Benton, 2015
: [433]; 2 Apr 2025.
[inferred]
Synonyms
Synonymous name
:
†
Cephalaspidomorphi
(Class)
Kiaer & Stensiö, 1920
Vernacular Names (English)
Full name
:
lampreys
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Last updated:
21 Sep 2025