| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Birkenia
Taxonomy
Birkenia is a genus. It is not extant.
It was assigned to Birkeniiformes by Sepkoski (2002); and to Birkeniidae by Reeves et al. (2023).
It was assigned to Birkeniiformes by Sepkoski (2002); and to Birkeniidae by Reeves et al. (2023).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Birkenia Sepkoski |
| 2023 | Birkenia Reeves et al. |
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum | |||||
| References: Carroll 1988, Kiessling 2004 | |||||
Age range: base of the Sheinwoodian to the top of the Ludlow or 432.90000 to 422.70000 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Llandovery - Wenlock | United Kingdom (Scotland) | B. sp. (26889) | |
| Telychian - Sheinwoodian | United Kingdom | B. elegans (238428) | |
| Telychian - Sheinwoodian | United Kingdom (South Lanarkshire) | B. elegans (195126) | |
| Sheinwoodian | United Kingdom | B. elegans (238429) | |
| Wenlock | United Kingdom | B. elegans (238430) | |
| Wenlock - Ludlow | United Kingdom (Scotland) | B. sp. (26906) | |
| Rootsikula | Estonia | B. robusta (13824) | |
| Ludlow | United Kingdom (Scotland) | B. elegans (26896) |