| Clade-based name | : | Cephalochordata (Clade) Owen 1846 [Cameron 2020] | |
Ref: J.S. Nelson et al., 2016: 16. [inferred] |
| Current rank | : | Cephalochordata (Phylum) Owen, 1846 | |
Ref: M.J. Benton, 2015: fig. 1.6 (G. Edgecombe); [433]. [implicit] |
| Former rank | : | Cephalochordata (Phylum) Owen, 1846 | |
Ref: M.J. Benton, 2015: [433]; fig. 1.6 (G. Edgecombe). [implicit] |
| Former rank | : | Cephalochordata (Infraphylum) Owen, 1846 | |
Ref: M.J. Benton, 2015: [433]. [inferred] |
| Former rank | : | Cephalochordata (Superclass) (Haeckel, 1866) | |
Ref: M.J. Benton, 2015: [433]. [inferred] |
| Former unranked name | : | Cephalochordata ([unranked]) | |
Ref: M.J. Benton, 2015: [433]. [inferred] |