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Taxonomy
Promegalaspides (Borogothus) was named by Tjernvik (1956) [Sepkoski's age data: O Aren]. Its type is Megalaspis stenorachis.
It was reranked as Borogothus by Jell and Adrain (2002), Sepkoski (2002).
It was assigned to Promegalaspides by Hoel (1999); to Asaphida by Sepkoski (2002); and to Asaphidae by Jell and Adrain (2002).
It was reranked as Borogothus by Jell and Adrain (2002), Sepkoski (2002).
It was assigned to Promegalaspides by Hoel (1999); to Asaphida by Sepkoski (2002); and to Asaphidae by Jell and Adrain (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1956 | Promegalaspides (Borogothus) Tjernvik |
| 1999 | Promegalaspides (Borogothus) Hoel |
| 2002 | Borogothus Jell and Adrain p. 351 |
| 2002 | Borogothus 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.
Subg. †Promegalaspides (Borogothus) Tjernvik 1956
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†Promegalaspides (Borogothus) intactus Moberg and Segerberg 1906
†Promegalaspides (Borogothus) stenorachis Angelin 1851
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Hendy 2009, Aberhan et al. 2004, Hendy et al. 2009 | |||||
Age range: base of the Varangu to the top of the Lancefieldian or 483.80000 to 474.90000 Ma
Collections (12 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tremadocian - Floian | Norway (Eiker-Sandsvær) | Promegalaspides stenorachis (190879 190880 190888 190974) | |
| Tremadocian - Floian | Sweden (Västergötland) | Promegadaspides stenorachis (190976) | |
| Tremadocian - Floian | Norway (Modum) | Promegalaspides stenorachis (190923) | |
| Tremadoc | Sweden | Promegalaspides intactus (3107) | |
| Lancefieldian | Norway (Ringsaker) | Promegalaspides stenorachis (190983) | |
| Varangu | Norway (Oslo) | Promegalaspides intactus (3183) | |
| Varangu | Sweden | Promegalaspides intactus (172663) | |
| Hunneberg | Sweden | Promegalaspides stenorhachis (3194) | |
| Billingen | Sweden | Promegalaspides stenorhachis (192718) |