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Taxon:
Order †
Cyathaspidiformes
(Kaier, 1930)
(fish)
Taxa
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Hierarchy
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Entity:
†Heterostraci (Subclass)
..†Aserotaspis (Genus)
..†Cardipeltida (Order)
..†Corvaspidida (Order)
..†Lepidaspidida (Order)
..†Pteraspidiformes (Order)
..†Tesseraspidida (Order)
..†Tolypelepidida (Order)
..†Traquairaspidiformes (Order)
..†Cyathaspidiformes (Order)
....†Amphiaspididae (Family)
....†Cyathaspididae (Family)
....†Nahanniaspis (Genus)
Concise hierarchy
(Kingdom)
Animalia
-
(Phylum)
Chordata
-
(Class)
Pteraspidomorphi
Current position
†
Heterostraci
(Subclass)
Lankester, 1868
Ref:
J.S. Nelson, 2006
: 29.
Historical positions
†
Heterostraci
(Subclass)
Lankester, 1868
Ref:
J.S. Nelson, 2006
: 29.
Number of Subtaxa
2024
Available in Systema Naturae 2000
†2f;48g
1989-present
Systema Naturae 2000
: 10 Feb 2019
[; †2f;48g]
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Last updated:
1 Feb 2024