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Okathyris chevkinensis
Taxonomy
Okathyris chevkinensis was named by Smirnova (1975). Its type specimen is MSU No 139/91, a shell, and it is a 3D body fossil. Its type locality is Right bank of the Oka, Chevkino, which is in a Berriasian marine horizon in the Russian Federation. It is the type species of Okathyris.
Synonymy list
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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.
†Okathyris chevkinensis Smirnova 1975
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 17.0 | 15.6 | 19.6 | 16.5 | 1.80 |
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| Source: f = family, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: Berriasian or 145.00000 to 139.80000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Berriasian | Russian Federation | Okathyris chevkinensis (type locality: 164368 164369 164370) |