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Agelagma
Taxonomy
Agelagma was named by Opik (1967) [Sepkoski's age data: Cm uMid-u Cm Dres-l Sepkoski's reference number: 16]. It is not extant.
It was assigned to Ptychopariida by Sepkoski (2002); and to Catillicephalidae by Jell and Adrain (2002).
It was assigned to Ptychopariida by Sepkoski (2002); and to Catillicephalidae by Jell and Adrain (2002).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1967 | Agelagma Opik |
| 1980 | Distazeris (Paradistazeris) Zhang et al. |
| 2002 | Agelagma Jell and Adrain p. 338 |
| 2002 | Agelagma 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. †Agelagma Opik 1967
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Invalid names: Paradistazeris Zhang et al. 1980 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Whittington et al. 1997 | |||||
Age range: base of the Guzhangian to the top of the Mindyallan or 500.50000 to 497.00000 Ma
Collections (24 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Menevian | Greenland (Peary Land) | A. quadratum (49485 49488) | |
| Marjumian | Greenland (Peary Land) | A. quadratum (49449) | |
| Guzhangian | China (Hunan) | Distazeris hubeiensis (128930) Paradistazeris hubeiensis (49182 126317 126318 126319 126322 126324) Paradistazeris hunanensis (49181 49187 49188) Paradistazeris hunanensis, Paradistazeris rotundus (126327) Paradistazeris rotundus (126325 126328 126329) Paradistazeris sp. (107050) | |
| Guzhangian | China (Chongqing) | Distazeris sichuanensis (128045) | |
| Guzhangian | Antarctica | A. sp. (227789) | |
| Ayusokkanian | Kazakhstan | A. sp. (118235 118238 118240) | |
| Mindyallan | Australia (Northern Territory) | Paradistazeris sp. (236880) |