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Discohelix (Discogonius)
Taxonomy
Discohelix (Discogonius) was named by Yin and Yochelson (1983) [Sepkoski's age data: Tr Anis Tr u Sepkoski's reference number: 909
Sepkoski's age data: Tr Anis Tr u Sepkoski's reference number: 909].
It was reranked as Discogonius by Sepkoski (2002).
It was assigned to Discohelix by Yin and Yochelson (1983); and to Opisthobranchia by Sepkoski (2002).
It was reranked as Discogonius by Sepkoski (2002).
It was assigned to Discohelix by Yin and Yochelson (1983); and to Opisthobranchia by Sepkoski (2002).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1983 | Discohelix (Discogonius) Yin and Yochelson p. 1107 |
| 2002 | Discogonius Sepkoski |
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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.
Subg. †Discohelix (Discogonius) Yin and Yochelson 1983
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†Discohelix (Discogonius) subvenusta Yin and Yochelson 1983
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 9.00 |
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| Source: supero = superorder, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004 | |||||
Age range: Anisian or 247.20000 to 242.00000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Anisian | China (Guizhou) | Woehrmannia venusta (98055) | |
| Pelsonian - Illyrian | China (Guizhou) | Discogonius sp. (31618) Discogonius subvenustus (31617 31619 31620 31631 31632) Discohelix subvenusta (44250 44255) |