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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Protopterygotheca
Taxonomy
Protopterygotheca was named by Chen (1977) [Sepkoski's age data: Cm Tomm-u Sepkoski's reference number: 962]. It is not extant.
It was assigned to Problematica by Sepkoski (2002).
It was assigned to Problematica by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1977 | Protopterygotheca Chen |
| 2002 | Protopterygotheca 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.
G. †Protopterygotheca Chen 1977
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range: base of the Meishucunian to the top of the Nemakit-Daldynian or 530.70000 to 525.50000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Nemakit-Daldynian | China (Sichuan) | P. leshanensis (8088) | |
| Meishucunian | China (Hubei) | P. leshanensis (107634 107636) |