[Phylum] Chordata Bateson, 1885 - chordates Count: [*†*] 4c;88o;589f;14g; †7c;127o;597f;967g;1s Subphylum Craniata auct. Count: [*†*] 4c;88o;589f;14g; †7c;127o;597f;967g;1s Infraphylum Vertebrata Lamarck, 1801 - vertebrates Count: [*†*] 3c;87o;588f;14g; †7c;126o;596f;966g;1s Superclass †Pteraspidomorphi Goodrich, 1909 [monotypic] Count: [†*] †1c;10o;32f;55g [23 Mar 2024] Class †Pteraspidomorpha Count: [†*] †10o;32f;55g [23 Mar 2024] Subclass †Astraspida Berg, 1940 [monotypic] Count: [†*] †1o;4f;4g [8 Mar 2024] Order †Astraspidiformes Berg, 1940 Count: [†*] †4f;4g [8 Mar 2024] Family †Eriptychiidae Tarlo, 1962 Count: [†*] †1g Genus †Eriptychius Walcott, 1892 Count: -