Tetragraptus quadribrachiatus
Tetragraptus quadribrachiatus
Eukaryota | Animalia | Hemichordata | Pterobranchia | Dichograptidae | Tetragraptus | Tetragraptus quadribrachiatus
COL:CS5HF | COL:N | COL:4R | COL:62274 | COL:N3QL9 | COL:T5K7M | COL:T5K9S
(Chatton, 1925) Whittaker & Margulis, 1978 |  | Bateson, 1885 | Lankester, 1877 |  | Hall, 1865 | J. Hall, 1858