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Eutrephoceras tawaense
Taxonomy
Eutrephoceras tawaense was named by Furuichi (1982). Its type specimen is Kagawa Natural Science Mus K-4-50, a shell, and it is a 3D body fossil. Its type locality is Tawa pit, Nagao-cho, Ookawa-gun (unit B), which is in a Campanian marine mudstone in the Nakato Shale Formation of Japan.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1982 | Eutrephoceras tawaense Furuichi p. 336 figs. Pl 54, figs 1-4; text-figs 1-4 |
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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.
†Eutrephoceras tawaense Furuichi 1982
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 126.5 | |||||
| shell diameter | 1 | 213.3 | |||||
| shell inflation | 1 | 7.70 |
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| Source: f = family, o = order, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004, Kiessling 2003 | |||||
Age range: Late/Upper Campanian or 83.60000 to 72.20000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Campanian | Japan | Eutrephoceras tawaense (type locality: 166255) |