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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. Its type is Agelagma quadratum.
It was assigned to Ptychopariida by Sepkoski (2002); and to Catillicephalidae by Jell and Adrain (2002), Bentley et al. (2006).
It was assigned to Ptychopariida by Sepkoski (2002); and to Catillicephalidae by Jell and Adrain (2002), Bentley et al. (2006).
Species
Entered
by J. Sepkoski on 2003-01-23; modified by P. Wagner on 2025-04-11
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 |
| 2006 | Agelagma Bentley et al. p. 189 |
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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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†Agelagma hunanensis Peng 1987
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: Whittington et al. 1997, Aberhan et al. 2004 | |||||
Age range: base of the Guzhangian to the top of the Mindyallan or 500.50000 to 497.00000 Ma
Collections (26 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 (Chongqing) | Distazeris sichuanensis (128045) | |
| Guzhangian | China (Hunan) | Distazeris hubeiensis, Distazeris hunanensis (128930) Distazeris hunanensis (130012) 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 | Antarctica | A. sp. (227789) | |
| Ayusokkanian | Kazakhstan | A. sp. (118235 118238 118240) | |
| Mindyallan | Australia (Northern Territory) | Paradistazeris sp. (236880) | |
| Mindyallan | Antarctica | A. quadratum (242395) |