| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Tmetoceras circulare
Taxonomy
Tmetoceras circulare was named by Buckman (1905). It is not extant. Its type specimen is SM J 6413.
Synonymy list
| Year | Name and author |
|---|---|
| 1905 | Tmetoceras circulare Buckman p. clxx figs. XLVIII, Fig. 1-3 |
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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.
†Tmetoceras circulare Buckman 1905
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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 2003, Kiessling 2004 | |||||
Age range: Late/Upper Toarcian or 180.40000 to 174.70000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Toarcian | Germany | Tmetoceras circulare (59448) |