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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Helvetella
Taxonomy
Helvetella is a genus. It is not extant.
It was assigned to Terebratulida by Sepkoski (2002); and to Gemmarculinae by Williams et al. (2006).
It was assigned to Terebratulida by Sepkoski (2002); and to Gemmarculinae by Williams et al. (2006).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Helvetella Sepkoski |
| 2006 | Helvetella Williams et al. p. 2215 |
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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. †Helvetella
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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: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Hauterivian to the top of the Barremian or 132.60000 to 121.40000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Hauterivian - Barremian | Russian Federation | H. borealis (47062) |