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Last visited taxon Astraspida

Position in a system

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subclass

Astraspida Berg, 1940

system Vitae - living organisms
domain Eukaryota Whittaker & Margulis, 1978 - lifeforms with nucletic cells
superregnum Unikonta
system Opisthokonta Cavalier-Smith, 1987
kingdom Animalia Linnaeus, 1758 - animals
subregnum Eumetazoa Butschli, 1910
divisio Bilateria Hatschek, 1888
subdivisio Deuterostomia - deuterostomes
phylum Chordata Bateson, 1885 - chordates
subphylum Vertebrata Cuvier, 1812 - vertebrates
infraphylum Cyclostomata Busk, 1852
class Pteraspidomorphi Goodrich, 1909
subclass Astraspida Berg, 1940


Explanations

extinct taxon