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Sekwicyathus
Taxonomy
Sekwicyathus was named by Handfield (1971) [Sepkoski's age data: Cm Boto-l Cm Boto-u]. It is not extant.
It was assigned to Ajacicyathida by Sepkoski (2002); and to Fallocyathidae by Debrenne et al. (2015).
It was assigned to Ajacicyathida by Sepkoski (2002); and to Fallocyathidae by Debrenne et al. (2015).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1971 | Sekwicyathus Handfield p. 34 figs. 2: 5-8 |
| 2002 | Sekwicyathus Sepkoski |
| 2015 | Sekwicyathus Debrenne et al. p. 978 |
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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. †Sekwicyathus Handfield 1971
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†Sekwicyathus nahanniensis Handfield 1971
†Sekwicyathus polygonalis Perejon et al. 1994
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: p = phylum | |||||
| References: Kiessling 2004, Bambach et al. 2007 | |||||
Age range: base of the Atdabanian to the top of the Botomian or 521.00000 to 512.90000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Atdabanian | Canada (Northwest Territories) | S. nahanniensis (49027) | |
| Atdabanian - Botomian | Spain (Cataluna) | S. polygonalis (81293) | |
| Botomian | Canada (Northwest Territories) | S. nahanniensis (80957 80961) | |
| Botomian | Canada (British Columbia) | S. nahanniensis (81083) S. sp. (81085) S. sp., S. nahanniensis (81084) |