Taxonavigation
Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Superclassis/Classis: †Pteraspidomorphi
Subclassis: †Heterostraci
Ordines:
†Corvaspidiformes –
†Cyathaspidiformes –
†Eriptychiiformes –
†Pteraspidiformes –
†Psammosteiformes –
†Tesseraspidiformes –
†Traquairaspidiformes
Name
Heterostraci Lankester, 1868
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