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Clavagnostidae
Taxonomy
Clavagnostidae was named by Howell (1937). It is not extant. Its type is Clavagnostus.
It was assigned to Agnostida by Whittington et al. (1997) and Hong et al. (2003); and to Condylopygoidea by Naimark and Pegel (2017).
It was assigned to Agnostida by Whittington et al. (1997) and Hong et al. (2003); and to Condylopygoidea by Naimark and Pegel (2017).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1937 | Clavagnostidae Howell |
| 1997 | Clavagnostidae Whittington et al. p. 371 |
| 2003 | Clavagnostidae Hong et al. |
| 2017 | Clavagnostidae Naimark and Pegel p. 1220 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Fm. †Clavagnostidae Howell 1937
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Subfm. †Aspidagnostinae Pokrovskaya 1960
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G. †Aspidagnostus Whitehouse 1936
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†Aspidagnostus laevis Palmer 1962
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Invalid names: Aspidagnostus pentagonus Lu and Lin 1989 [synonym], Aspidagnostus taoyuanensis Peng 1987 [synonym]
†Aspidagnostus lunulosus Kryskov 1963
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Invalid names: Aspidagnostus chekiangensis Lu 1974 [synonym], Aspidagnostus stictus Opik 1967 [synonym]
†Aspidagnostus orientalis Yang et al. 1993
†Aspidagnostus parmatus Whitehouse 1936
†Aspidagnostus primitivus Yang et al. 1993
†Aspidagnostus rugosus Palmer 1962
Invalid names: Biragnostus Pokrovskaya 1960 [synonym]
Subfm. †Clavagnostinae Howell 1937
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G. †Clavagnostus Howell 1937
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Subg. †Clavagnostus (Paraclavagnostus) Yang et al. 1993
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†Clavagnostus (Paraclavagnostus) variatus Yang et al. 1993
†Clavagnostus burnsi Jago and Daily 1974
†Clavagnostus calensis Rusconi 1950
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Invalid names: Clavagnostus (Leptagnostus) lanceolatus Lu and Lin 1989 [synonym], Clavagnostus canotensis Rusconi 1951 [synonym]
†Clavagnostus cuneatus Romanenko 1967
†Clavagnostus repandus Westergard 1930
†Clavagnostus spinosus Resser 1938
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Invalid names: Clavagnostus longispinus Qian 1982 [synonym], Clavagnostus sulcatus Westergard 1946 [synonym]
†Clavagnostus subconicus Lu and Lin 1989
†Clavagnostus taoyuanensis Lin 1991
†Clavagnostus trispinus Zhou and Yang 1977
Invalid names: Acanthagnostus Qian 1982 [synonym], Culipagnostus Rusconi 1952 [synonym], Leptagnostus Lu and Lin 1989 [synonym], Tomorhachis Resser 1938 [synonym]
G. †Triadaspis Opik 1976
Subfm. †Utagnostinae Jago et al. 2004
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G. †Utagnostus Robinson 1964
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†Utagnostus neglectus Jago 1976
†Utagnostus songae Peng and Robison 2000
†Utagnostus trispinulus Robison 1964
Diagnosis
No diagnoses are available