Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Classis: †Placodermi
Ordo: Acanthothoraci
Familiae: Palaeacanthaspidae - Weejasperaspididae
Vernaculer names
Ελληνικά: Ακανθοθώρακοι
Retrieved from "http://en.wikipedia.org/"
All text is available under the terms of the GNU Free Documentation License
