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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) and Sepkoski (2002).
It was assigned to Promegalaspides by Hoel (1999); to Asaphidae by Jell and Adrain (2002); and to Asaphida by Sepkoski (2002).
It was reranked as Borogothus by Jell and Adrain (2002) and Sepkoski (2002).
It was assigned to Promegalaspides by Hoel (1999); to Asaphidae by Jell and Adrain (2002); and to Asaphida by Sepkoski (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, Hendy et al. 2009, Aberhan et al. 2004 | |||||
Collections (12 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tremadoc | Sweden | Promegalaspides intactus (3107) | |
| Varangu | Norway (Oslo) | Promegalaspides intactus (3183) | |
| Varangu | Sweden | Promegalaspides intactus (172663) | |
| Tremadocian - Floian | Norway (Modum) | Promegalaspides stenorachis (190923) | |
| Tremadocian - Floian | Sweden (Västergötland) | Promegadaspides stenorachis (190976) | |
| Tremadocian - Floian | Sweden | Promegalaspides stenorhachis (3194) | |
| Tremadocian - Floian | Norway (Eiker-Sandsvær) | Promegalaspides stenorachis (190879 190880 190888 190974) | |
| Lancefieldian | Norway (Ringsaker) | Promegalaspides stenorachis (190983) | |
| Billingen | Sweden | Promegalaspides stenorhachis (192718) |