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Peratagnostus
Taxonomy
Peratagnostus was named by Opik (1967) [Sepkoski's age data: Cm Dres-u Cm Fran-l Sepkoski's reference number: 16,1017]. It is not extant.
It was synonymized subjectively with Phaldagnostus by Jell and Adrain (2002).
It was assigned to Spinagnostidae by Whittington et al. (1997); to Agnostida by Sepkoski (2002); and to Hypagnostidae by Paterson and Laurie (2004).
It was synonymized subjectively with Phaldagnostus by Jell and Adrain (2002).
It was assigned to Spinagnostidae by Whittington et al. (1997); to Agnostida by Sepkoski (2002); and to Hypagnostidae by Paterson and Laurie (2004).
Species
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1967 | Peratagnostus Opik |
| 1997 | Peratagnostus Whittington et al. p. 357 |
| 2002 | Monexagnostus Sepkoski |
| 2002 | Peratagnostus Sepkoski |
| 2004 | Peratagnostus Paterson and Laurie p. 95 |
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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.
G. †Peratagnostus Opik 1967
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†Peratagnostus controversus Kryskov 1963
†Peratagnostus distinctus Lu and Lin 1989
†Peratagnostus hillardensis Palmer 1968
†Peratagnostus invalidus Lu and Lin 1989
†Peratagnostus nobilis Opik 1967
†Peratagnostus obsoletus Kobayashi 1935
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Invalid names: Peratagnostus sinicus Hsiang 1963 [synonym]
†Peratagnostus orientalis Lazarenko 1966
†Peratagnostus zhejiangensis Lu and Lin 1989
Invalid names: Monaxagnostus Liu 1982 [synonym]
Diagnosis
No diagnoses are available