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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Holcophylloceras tyungense
Taxonomy
Holcophylloceras tyungense was named by Meledina (1998). Its type specimen is TSGM 580/49, a shell (shell), and it is a mold. Its type locality is Tyung River, which is in a Bifrons marine siliciclastic in the Russian Federation.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1998 | Holcophylloceras tyungense Meledina p. 472 figs. Pl 5, figs 3,6; text-fig 9 |
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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.
†Holcophylloceras tyungense Meledina 1998
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 16.0 | |||||
| shell diameter | 1 | 27.0 | |||||
| shell inflation | 1 | 1.70 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003, Hendy et al. 2009 | |||||
Age range: base of the Margaritatus to the top of the Bifrons or 192.90000 to 174.70000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Margaritatus | Russian Federation | Holcophylloceras tyungense (50223) | |
| Bifrons | Russian Federation | Holcophylloceras tyungense (type locality: 50225) |