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Parahelenites
Taxonomy
Parahelenites was named by Chen and Liu (1974). Its type is Parahelenites guizhouensis.
It was synonymized subjectively with Eushantungoceras by Dzik (1984).
It was assigned to Parahelenitidae by Chen et al. (1981); and to Actinocerida by Stait (1988).
It was synonymized subjectively with Eushantungoceras by Dzik (1984).
It was assigned to Parahelenitidae by Chen et al. (1981); and to Actinocerida by Stait (1988).
Species
P. asymmetricus, P. guizhouensis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1974 | Parahelenites Chen and Liu |
| 1981 | Parahelenites Chen et al. p. 89 |
| 1988 | Parahelenites Stait |
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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. †Parahelenites Chen and Liu 1974
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†Parahelenites asymmetricus Stait 1988
†Parahelenites guizhouensis Chen and Liu 1974
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Aberhan et al. 2004 | |||||
Age range: base of the Blackriveran to the top of the Gorstian or 457.30000 to 425.00000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Blackriveran | Australia (Tasmania) | P. asymmetricus (189092) | |
| Telychian | China (Sichuan) | P. sp. (27908) | |
| Telychian | China (Shaanxi) | P. sp. (23251) | |
| Sheinwoodian | China (Guizhou) | P. sp. (27792) | |
| Gorstian | China | P. sp. (228660) |