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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Parahelenitidae
Taxonomy
Parahelenitidae was named by Chen et al. (1981).
It was assigned to Actinocerida by Chen et al. (1981).
It was assigned to Actinocerida by Chen et al. (1981).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1981 | Parahelenitidae Chen et al. p. 87 |
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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.
Fm. †Parahelenitidae Chen et al. 1981
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G. †Euryarthroceras Chen et al. 1981
G. †Eushantungoceras Shimizu and Obata 1935
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Aberhan et al. 2004, Kiessling 2004 | |||||
Age range: base of the Telychian to the top of the Sheinwoodian or 438.60000 to 430.60000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Telychian | China (Sichuan) | Eushantungoceras sp. (27908) | |
| Telychian | China | Eushantungoceras sp. (228659) | |
| Sheinwoodian | China (Guizhou) | Eushantungoceras sp. (27792) |