After Whittington, Chang, Dean, Fortey, Jell, Laurie, Palmer, Repina, Rushton & Shergold, 1997
<==o †Diplagnostidae Whitehouse, 1936 |--o †Diplagostinae Whitehouse, 1936 | |--o †Diplagnostus Jaekel, 1909 [Enetagnostus Whitehouse, 1936]; M. Camb. SA. NENA. NEu. WEu. CAs. EAs. Aust. | | |-- †D. planicauda (Angelin, 1851) [Agnostus planicauda Angelin, 1851] | | `-- †D. humilis (Whitehouse, 1936) [Enetagnostus humilis Whitehouse, 1936] | |--o †Acadagnostus Kobayashi, 1939a [Axagnostus Laurie, 1990]; M. Camb. NA. NEu. SWAs. CAs. EAs. Aust. | | |-- †A. acadius (Hartt, in Dawson, 1868) [Agnostus acadius Hartt, in Dawson, 1868] | | `-- †A. fallax (Linnarsson, 1869) [Agnostus fallax Linnarsson, 1869; Axagnostus fallax (Linnarsson, 1869) Laurie, 1990] | |--o †Baltagnostus Lochman, in Lochman & Duncan, 1944 | | `-- †B. centerensis (Resser, 1938) [Proagnostus? centerensis Resser, 1938]; M. Camb. NA. EAs. Aust. | |--o †Dolichagnostus Pokrovskaya, 1958 | | `-- †D. admirabilis Pokrovskaya, 1958 | |?-o ?†Iniosphenicus Öpik, 1979 | | `-- †I. talis Öpik, 1979 | |--o †Linguagnostus Kobayashi, 1939 | | `-- †L. kjerulfi (Brögger, 1878) [Agnostus kjerulfi Brögger, 1878] | |--o †Oedorhacis Resser, 1938 | | `-- †O. typicalis Resser, 1938 | `--o †Tasagnostus Jago, 1976 | `-- †T. debori Jago, 1976 |--o †Oidalagostinae Öpik, 1967 | |--o †Oidalagnostus Westergård, 1946 [Ovalagnostus Lu in Lu, Zhu et al., 1974] | | |-- †O. changi Lu in Wang, 1964 [Ovalagnostus changi (Lu, 1964)] | | `-- †O. trispinifer Westergård, 1946 | `--o †Cristagnostus Rushton, 1978 | `-- †C. papilio Rushton, 1978 `--o †Pseudagnostinae Whitehouse, 1936 |--o †Pseudagnostus Jaekel, 1909 | |--o †(Pseudagnostus) Jaekel, 1909 | | `-- †P. (P.) cyclopyge (Tullberg, 1880) [Agnostus cyclopyge Tullberg, 1880] | |--o †(Pseudagnotina) Palmer, 1962a | | `-- †P. (P.) contracta (Palmer, 1962a) [Pseudagnostina contracta Palmer, 1962a] | `--o †(Sulcatagnostus) Kobayashi, 1937 | `-- †P. (S.) securiger (Lake, 1906) [Agnostus securiter Lake, 1906] |--o †Agnostotes Öpik, 1963 | |--o †(Agnostotes) Öpik, 1963 | | `-- †A. (A.) inconstans Öpik, 1963 | `--o †(Pseudoglyptagnostus) Lu, in Wang, 1964 [Glyptagnostotes Lazarenko, 1966] | |-- †A. (P.) clavatus (Lu, 1964) [Pseudoglyptagnostus clavatus Lu, 1964] | `-- †A. (P.) elegans (Lazarenko, 1966) [Glyptagnostotes elegans Lazarenko, 1966] |--o †Denagnostus Jago, 1987 | `-- †D. corbetti Jago, 1987 |--o †Litagnostus Rasetti, 1944 | `-- †L. levisensis Rasetti, 1944 |--o †Nahannagnostus Pratt, 1992 | `-- †N. nganasanicus (Rozova, 1964) [Pseudagnostus nganasanicus] |--o †Neoagnostus Kobayashi, 1955 | |--o †(Neoagnostus) Kobayashi, 1955 [Pseudorhaptagnostus Lermontova, 1940; Euplethagnostus Lermontova, 1940; Hyperagnostus Kobayashi, 1955; Tarayagnostus Suarez-Socuco, 1975; Calagnostus Zhang & Wang, 1985] | | |-- †N. (N.) aspidoides Kobayashi, 1955 | | |-- †N. (N.) simplex (Lermontova, 1940) [Pseudorhaptagnostus simplex Lermontova, 1940] | | |-- †N. (N.) subangulatus (Lermontova, 1940) [Euplethagnostus subangulatus Lermontova, 1940] | | |-- †N. (N.) binodosus (Kobayashi, 1955) [Hyperagnostus binodosus Kobayashi, 1955] | | |-- †N. (N.) corrugatus (Suarez-Socuco, 1975) [Tarayagnostus corrugatus Suarez-Socuco, 1975] | | `-- †N. (N.) magezhuangensis (Zhang & Wang, 1985) [Calagnostus magezhuangensis Zhang & Wang, 1985] | `--o †(Machairagnostus) Harrington & Leanza, 1957 | `-- †N. (M.) tmetus Harrington & Leanza, 1957 |--o †Oxyagnostus Öpik, 1967 | `-- †O. apicula Öpik, 1967 |--o †Rhaptagnostus Whitehouse, 1936 | |-- †R. cyclopygeformis (Y. Sun, 1924) [Agnostus cyclopygeformis Y. Sun, 1924] | |-- †R. convergens (Palmer) | |--o †R. clarki | | `-- †R. c. maximus | |-- †R. papilio | `-- †R. bifax |--o †Trisulcagnostus Ergaliev, 1980 | `-- †T. trisulcus Ergaliev, 1980 `--o †Xestagostus Öpik, 1967 `-- †X. legirupa Öpik, 1967
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