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Raragnostus
Taxonomy
Raragnostus was named by Khairullina (1975) [Sepkoski's age data: Cm mMid Cm uMid-u]. It is not extant.
It was assigned to Agnostida by Sepkoski (2002); to Hypagnostoidae by Pour and Popov (2009); and to Spinagnostidae by Yuan et al. (2012).
It was assigned to Agnostida by Sepkoski (2002); to Hypagnostoidae by Pour and Popov (2009); and to Spinagnostidae by Yuan et al. (2012).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1975 | Raragnostus Khairullina |
| 2002 | Raragnostus Sepkoski |
| 2009 | Raragnostus Pour and Popov |
| 2012 | Raragnostus Yuan et al. pp. 96 - 97, 588 |
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order | |||||
| References: Whittington et al. 1997, Kiessling 2004 | |||||
Age range: Middle Cambrian or 506.50000 to 497.00000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Cambrian | Kyrgyzstan | R. mirus (116223) |