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Taxonomy
Marjumia was named by Walcott (1916) [Sepkoski's age data: Cm uMid-l Sepkoski's reference number: 492]. Its type is Owenella typa.
It was assigned to Olenidae by Walcott (1916); to Ptychopariida by Sepkoski (2002); and to Marjumiidae by Jell and Adrain (2002).
It was assigned to Olenidae by Walcott (1916); to Ptychopariida by Sepkoski (2002); and to Marjumiidae by Jell and Adrain (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1916 | Marjumia Walcott p. 401 |
| 2002 | Marjumia Jell and Adrain p. 403 |
| 2002 | Marjumia 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. †Marjumia Walcott 1916
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†Marjumia bagginsi Melzak and Westrop 1994
†Marjumia callas Walcott 1916
†Marjumia newfoundlandensis Lochman 1938
†Marjumia spinosa Robison 1988
†Marjumia transversa Palmer 1968
†Marjumia typa Walcott 1908
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Hendy 2009, Aberhan et al. 2004 | |||||
Age range: Menevian or 504.50000 to 499.50000 Ma
Collections (22 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cambrian | Canada (Newfoundland) | M. newfoundlandensis (198254) | |
| Middle Cambrian | USA (Alaska) | M. callas (64767) Modocia transversa (64762) | |
| St Davids | Canada (British Columbia) | M. typa (122017) | |
| Menevian | Greenland (Peary Land) | M. brevifrons (49485) M. spinosa (49482) | |
| Marjumian | Greenland (Peary Land) | M. brevifrons (49433 49435 49449 49453 49454 49481) M. brevifrons, M. spinosa (49434 49483) M. spinosa (49450) | |
| Marjumian | Canada (British Columbia) | M. typa (122072) | |
| Marjumian | Canada (Alberta) | M. bagginsi (193757 194576 194603) M. sp. (190351 190935) M. transversa (192262) |