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Monotypic taxon:
Order †
Protospinaciformes
(fish)
Taxa
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Hierarchy
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Entity:
Squalomorphi (Superorder)
..Echinorhiniformes (Order) - bramble sharks
..Hexanchiformes (Order) - six-gill sharks
..Pristiophoriformes (Order) - saw sharks
..Squaliformes (Order) - dogfish sharks
..Squatiniformes (Order) - angel sharks
..†Protospinaciformes (Order)
....†Protospinasidae (Family)
Concise hierarchy
(Kingdom)
Animalia
-
(Phylum)
Chordata
-
(Class)
Chondrichthyes
Current position
Squalomorphi
(Superorder)
Ref:
J.S. Nelson, 2006
: 68.
Historical positions
Squalomorphi
(Superorder)
Ref:
J.S. Nelson, 2006
: 68.
Number of Subtaxa
2024
Available in Systema Naturae 2000
†1f;1g
1989-present
Systema Naturae 2000
[; †1f;1g]
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Last updated:
1 Feb 2024