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Mallagnostus
Taxonomy
Mallagnostus was named by Howell (1935) [Sepkoski's age data: Cm, Boto, Cm, Tojo]. It is not extant. Its type is Agnostus desideratus.
It was assigned to Weymouthiidae by Whittington et al. (1997); and to Agnostida by Sepkoski (2002).
It was assigned to Weymouthiidae by Whittington et al. (1997); and to Agnostida by Sepkoski (2002).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1935 | Mallagnostus Howell |
| 1959 | Ladadiscus Pokrovskaya |
| 1979 | Ladadiscus Osadchaya et al. |
| 1985 | Jinghediscus Xiang and Zhang |
| 1997 | Mallagnostus Whittington et al. p. 396 |
| 2002 | Jinghediscus Sepkoski |
| 2002 | Mallagnostus Sepkoski |
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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. †Mallagnostus Howell 1935
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†Mallagnostus desideratus Walcott 1890
†Mallagnostus llarenai Richter 1941
Invalid names: Jinghediscus Xiang and Zhang 1985 [synonym], Ladadiscus Pokrovskaya 1959 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order | |||||
| References: Kiessling 2004, Whittington et al. 1997 | |||||
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Atdabanian | Spain | Eodiscus llarenai (225087) | |
| Nangaoian - Duyunian | China (Xinjiang) | Jinghediscus nummularius (225123) | |
| Branchian | United Kingdom (England) | M. llarenai (225078) | |
| Dyeran | USA (New York) | Agnostus desideratus (225133) | |
| Toyonian | Russian Federation (Tuva) | Ladadiscus limbatus (81474) |