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Hunanocephalus (Duotingia)
Taxonomy
Hunanocephalus (Duotingia) was named by Chow (1974) [in Lu et al., Sepkoski's age data: Cm Atda Sepkoski's reference number: 463
in Lu et al.]. It is not extant.
It was reranked as Duotingia by Zhang and Zhou (1985) and Sepkoski (2002).
It was assigned to Hunanocephalus by Chow (1974); to Oryctocephalidae by Zhang and Zhou (1985); and to Corynexochida by Sepkoski (2002).
It was reranked as Duotingia by Zhang and Zhou (1985) and Sepkoski (2002).
It was assigned to Hunanocephalus by Chow (1974); to Oryctocephalidae by Zhang and Zhou (1985); and to Corynexochida by Sepkoski (2002).
Subtaxa
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1974 | Hunanocephalus (Duotingia) Chow |
| 1985 | Duotingia Zhang and Zhou |
| 2002 | Duotingia 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. †Hunanocephalus (Duotingia) Chow 1974
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†Duotingia taihuensis Zhang and Zhou 1985
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Aberhan et al. 2004, Hendy et al. 2009, Whittington et al. 1997 | |||||
Age range: Nangaoian or 521.00000 to 514.00000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Nangaoian | China (Zhejiang) | Hunanocephalus constricatus, Hunanocephalus rarus (129764) Hunanocephalus rarus (125529) | |
| Nangaoian | China (Jiangsu) | Duotingia taihuensis (127383) |