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Taxonavigation: Cyathaspidida 

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Superclassis/Classis: †Pteraspidomorphi
Subclassis: †Heterostraci
Ordo: †Cyathaspidiformes
Subordo: †Cyathaspidida

Familia: †Cyathaspididae
Genus: †Americaspis
Species: †A. americana – †A. bitruncata – †A. claypolei


Americaspis White & Moy-Thomas, 1941

  • Replacement name for †Palaeaspis Claypole, 1884 preoccupied by †Palaeaspis Gray, 1870.

Type species: †Palaeaspis americana Claypole, 1884


  • Claypole, E.W. 1884. Preliminary Note on Some Fossil Fishes Recently Discovered in the Silurian Rocks of North America. The American Naturalist, 18(12): 1222–1226. Reference page
  • White, E.I. & Moy-Thomas, J.A. 1941. Notes on the nomenclature of fossil fishes. III. Homonyms M-Z. Annales and Magazine of Natural History 7: 395-400. Reference page