After Zhang, Dong & Maas, 2010
<==o †Phosphatocopida Müller, 1982 [Müller & Waloszek, 1991] |-- †Klausmuelleria salopensis `--o †Euphosphatocopida |-- †Dabashanellidae `==o †Hesslandonidae |?- †Hesslandona sp. [M.-U.Camb. EAs. (Hunan)] [Dong, Donoghue, Liu, Z., Liu, J. & Peng, 2005] |?- †Hesslandona longispinosa (Kozur, 1974) [Vestrogothia longispinosa Kozur, 1974] |--+--+-- †Trapezilites minimus | | `-- †Hesslandona unisulcata | `--+-- †Falites fala (Müller, 1964) [Falitidae Müller, 1964] | `--+-- †Waldoria rotundata Gründel, 1980 | `--+-- †Cyclotron lapworthi (Groom, 1902) Rushton, 1969 [Polyphyma lapworthi Groom, 1902] | `--o †Veldotron Gründel, 1981 | `-- †V. bratteforsa (Müller, 1964) Hinz-Schallreuter, 1993 [Vestrogothia bratteforsa Müller, 1964] `--+-- †Hesslandona angustata Maas, Waloszek & Müller, 2003 `--o †Dorsospinata |-- †Hesslandona suecica Maas, Waloszek & Müller, 2003 `--+-- †Hesslandona kinnekullensis |-- †Hesslandona toreborgensis |-- †Hesslandona necopina Müller, 1964 [type] |--+-- †Hesslandona trituberculata(Lochman & Hu, 1960) Rushton, 1978 | `--o †Vestrogothia Müller, 1964 [Vestrogothiidae] | |-- †V. spinata Müller, 1964 | `--+-- †V. anterispinata Zhang & Dong, 2009 | `-- †V. bispinata Zhang & Dong, 2009 `--+-- †Hesslandona curvispina Maas et al., 2003 `-- †Hesslandona ventrospinata
After Zhang, Dong & Xiao, 2011<==o †Phosphatocopida |-- †Klausmuelleria salopensis `--o †Euphosphatocopida |--o †Vestrogothiidae | |-- †Falites fala | `--o †Vestrogothia | |-- †V. spinata | `--+-- †V. anterispinata | `-- †V. bispinata `--o †Hesslandonidae |-- †Hesslandona angustata |--+--+-- †Hesslandona unisulcata | | `-- †Trapezilites minimus | `--+-- †Waldoria rotundata | `--+-- †Cyclotron lapworthi | `-- †Veldotron bratteforsa `--+-- †Hesslandona suecica `--+-- †Hesslandona kinnekullensis `--+-- †Hesslandona toreborgensis `--+-- †Hesslandona necopina `--+-- †Hesslandona longispinosa |-- †Hesslandona trituberculata |-- †Hesslandona ventrospinata `-- †Hesslandona curvispina |
Reference(s):
- Dong, X.-p., Donoghue, P. C. J., Liu, Z., Liu, J. & Peng, F., 2005: The fossils of Orsten-type preservation from Middle and Upper Cambrian in Hunan, China.
–Chinese Science Bulletin: Vol. 50, #13, pp. 1352-1357 [doi: 101360/982005-795] - Zhang, H., Dong, X. & Maas, A., 2010: Hesslandona angustata (Phosphatocopida, Crustacea) from the Upper Cambrian of western Hunan, South China, with comments on phosphatocopid phylogeny.
–Neues Jahrbuch für Geologie und Paläontologie, Abh.: Vol. 259, #2, pp. 157-175 - Zhang, H., Dong, X.-P. & Xiao, S., 2011: Two Species of Hesslandona (Phosphatocopida, Crustacea) from the Upper Cambrian of Western Hunan, South China and the Phylogeny of Phosphatocopida.
–Journal of Paleontology: Vol. 85, #4, pp. 770-788 [doi: 10.1666/10-043.1]