After Whittington, Chang, Dean, Fortey, Jell, Laurie, Palmer, Repina, Rushton & Shergold, 1997
<==o †Spinagostinae Howell, 1935 [Spinagnostidae Howell, 1937; Cyclopagnostinae Howell, 1937; Hypagnostinae Ivshin, 1953; Euagnostinae Öpik, 1979] |--o †Hypagnostus Jaekel, 1909 [Spinagnsotus Howell, 1935a; Cyclopagnostus Howell, 1937; H. (Breviagnsotus) Liu, 1982; H. (Metahypagnostus) Qiu in Qiu et al., 1983]; M. U. Camb. SA. NA. Eu. As. Aust. | |-- †H. parvifrons (Linnarsson, 1869) [Agnostus parvifrons Linnarsson, 1869] | |-- †H. franklinensis (Howell, 1935a) [Spinagnostus franklinensis Howell, 1935a] | |-- †H. hesperius (Howell, 1937) [Cyclopagnostus hesperius Howell, 1937] | |-- †H. brachyaxonus Liu, 1982 [H. (Breviagnostus) brachyaxonus Liu, 1982] | `-- †H. brachydolosus Zhou & Yang in Qiu et al., 1983 [H. (Metahypagnostus) brachydolosus Zhou & Yang in Qiu et al., 1983] |--o †Cotalagnostus Whitehouse, 1936; M. Camb. SA. NA. Eu. As. Aust. | `-- †C lens (Grönwall, 1902) [Agnostus lens Grönwall, 1902] |--o †Eoagnostus Resser & Howell, 1938; L. Camb. NA. | `-- †E. roddyi Resser & Howell, 1938 |--o †Euagnostus Whitehouse, 1936; M. Camb. NA. Aust. | `-- †E. opimus Whitehouse, 1936 |--o †Micagnostus Hajrullina in Repina, Petrunina & Hajrullina, 1975; M. Camb. CAs. | `-- †M. rectus Hajrullina in Repina, Petrunina & Hajrullina, 1975 |--o †Peratagnostus Öpik, 1967; U. Camb. Aust. CAs. EAs. NA. | `-- †P. nobilis Öpik, 1967 |--o †Raragnostus Hajrullina in Repina, Petrunina & Hajrullina, 1975; M. Camb. CAs. Aust. NEu. | `-- †R. mirus Hajrullina in Repina, Petrunina & Hajrullina, 1975 |--o †Svenax Öpik, 1979; M. Camb. NEu. Aust. | `-- †S. pusillus (Tullberg, 1880) [Agnostus pusillus Tullberg, 1880] `--o †Tomagnostella Kabayashi, 1939a; M. U. Camb. NEu. NA. CAs. EAs. Aust. `-- †T. exculptus (Angelin, 1851) [Agnostus exsculptus Angelin, 1851]
Reference(s):
- Whittington, H. B., Chang, W. T., Dean, W. T., Fortey, R. A., Jell, P. A., Laurie, J. R., Palmer, A. R., Repina, L. N., Rushton, A. W. A. & Shergold, J. H., 1997: Systematic Description of the class Trilobita. 331-481.
in Kaesler, R. L., (eds.) 1997: Treatise on Invertebrate Paleontology, Part O, Arthropoda 1, Trilobita, Revisited, vol 1: Introduction, Order Agnostida; Order Redlichiida.
–The Geological Society of America, Inc. and The University of Kansas, Boulder, Colorado & Lawrence, Kansas, 1997, xxiv-530