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Alternifenestella bifida
Taxonomy
Fenestella bifida was named by Eichwald (1860).
It was recombined as Alternifenestella bifida by Morozova and Kruchinina (1986), Nakrem (1994), Nakrem (1994).
It was recombined as Alternifenestella bifida by Morozova and Kruchinina (1986), Nakrem (1994), Nakrem (1994).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1860 | Fenestella bifida Eichwald |
| 1986 | Alternifenestella bifida Morozova and Kruchinina p. 83 figs. Pl 30, fig 4 |
| 1994 | Alternifenestella bifida Nakrem p. 31 figs. Pl 12, fig H |
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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.
†Alternifenestella bifida Eichwald 1860
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Kiessling 2004, Smith et al. 2006 | |||||
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Gzhelian | Svalbard and Jan Mayen | Alternifenestella bifida (115480 115526 115531) | |
| Artinskian | Svalbard and Jan Mayen | Alternifenestella bifida (115600) Fenestella bifida (212504) | |
| Artinskian | Canada (Nunavut) | Alternifenestella bifida (107628) | |
| Roadian | Russian Federation | Alternifenestella bifida (113552) |