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Hypagnostus
Taxonomy
Hypagnostus was named by Jaeckel (1909) [Sepkoski's age data: ]. It is not extant.
It was assigned to Spinagnostidae by Whittington et al. (1997); to Agnostida by Sepkoski (2002); and to Peronopsidae by Jell and Adrain (2003).
It was assigned to Spinagnostidae by Whittington et al. (1997); to Agnostida by Sepkoski (2002); and to Peronopsidae by Jell and Adrain (2003).
Species
Species lacking formal opinion data
Sister genera
Download authority and opinion data - View classification of included taxa
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1909 | Hypagnostus Jaeckel |
| 1935 | Spinagnostus Howell |
| 1937 | Cyclopagnostus Howell |
| 1997 | Hypagnostus Whittington et al. p. 356 |
| 2002 | Hypagnostus Sepkoski, Jr. |
| 2003 | Hypagnostus Jell and Adrain p. 364 |
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