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Tolvericeras
Taxonomy
Tolvericeras was named by Hantzpergue (1987). It is not extant.
It was assigned to Perisphinctidae by Hantzpergue (1987) and Hantzpergue et al. (1998).
It was assigned to Perisphinctidae by Hantzpergue (1987) and Hantzpergue et al. (1998).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1987 | Tolvericeras Hantzpergue figs. pl. 10, fig. b |
| 1998 | Tolvericeras Hantzpergue et al. p. 637 |
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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. †Tolvericeras Hantzpergue 1987
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Late/Upper Kimmeridgian or 155.70000 to 150.80000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Kimmeridgian | Russian Federation | T. sevogodense (58849 58852) |