Extinct lancelet (†Palaeobranchiostoma hamatoterga)

Superdomain: Neomura

Domain: Eukaryota

(unranked): Unikonta

(unranked): Obazoa

(unranked): Opisthokonta

(unranked) Holozoa

(unranked) Filozoa

Kingdom: Animalia

Subkingdom: Eumetazoa

Clade: ParaHoxozoa

Clade: Bilateria

Clade: Nephrozoa

Superphylum: Deuterostomia

Phylum: Chordata

Subphylum: Cephalochordata

Class: Leptocardii

Order: Amphioxiformes

Family: Branchiostomatidae

Genus: †Palaeobranchiostoma

Species: †P. hamatoterga

Done