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Vebericochlis
Taxonomy
Stegocoelia (Vebericochlis) was named by Licharev (1967).
It was reranked as Vebericochlis by Mazaev (2002) and Wagner (2023).
It was assigned to Stegocoelia by Licharev (1967); to Orthonemidae by Mazaev (2002); and to Orthonematidae by Wagner (2023).
It was reranked as Vebericochlis by Mazaev (2002) and Wagner (2023).
It was assigned to Stegocoelia by Licharev (1967); to Orthonemidae by Mazaev (2002); and to Orthonematidae by Wagner (2023).
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.
G. †Vebericochlis Licharev 1967
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†Vebericochlis arguta Licharev 1975
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Invalid names: Vebericochlis scleris Licharev 1975 [synonym]
†Vebericochlis maclayi Licharev 1967
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Invalid names: Vebericochlis ambigua Licharev 1967 [synonym]
†Vebericochlis mazaevi Nützel and Nakazawa 2012
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. V. Mazaev 2002 | Shell high-spired, anomphalous. Protoconch conical, of 1 or 2 smooth whorls. Juvenile whorls nearly rounded or almost straight, ornamented with three or four spiral lirae with equal interspaces between them. Face of adult whorls with narrow subsutural ramp form ing shoulder. Shell surface below shoulder slightly rounded or straight, ornamented with four main spiral lirae, upper lira marking the shoulder. Additional weak spiral lira may be placed on selenizone and between second and third main spiral lirae. Some spiral lirae may be expressed as rows of nodes. Selenizone band concave, smooth, with weak lunula of growth lines, bordered by first and second main spirallirae. Whorl face gradually passing into basal side near fourth lirae. Basal side slightly rounded, smooth or ornamented with spiral lirae. Growth lines fine, extending prosoclinally at subsutural ramp, forming lunulae at selenizone, below the selenizone prosocyrt, and extending opisthoclinally across remainder whorl. |
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 11.2 | 5.00 | 28.0 | 11.3 | 10.4 | |
| shell diameter | 4 | 4.83 | 2.50 | 10.6 | 4.75 | 3.66 |
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| Source: c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Myachkovian to the top of the Capitanian or 309.00000 to 259.51000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Myachkovian | Russian Federation (Chelyabinskaya) | Stegocoelia arguta (156080) | |
| Krevyakinian | Russian Federation (Ryazan) | V. arguta (154808) | |
| Asselian | Kyrgyzstan | Stegocoelia maclayi (95754) | |
| Capitanian | Japan | V. sp., V. spp., V. mazaevi (109667) |