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Trigonyangaspis
Taxonomy
Trigonyangaspis was named by Jell and Adrain (2002). It is not extant.
It was assigned to Ptychopariidae by Jell and Adrain (2002).
It was assigned to Ptychopariidae by Jell and Adrain (2002).
Species
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1993 | Trigonaspis Yang et al. |
| 2002 | Trigonyangaspis Jell and Adrain |
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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. †Trigonyangaspis Jell and Adrain 2002
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†Trigonyangaspis hujiaensis Yang et al. 1993
Invalid names: Trigonaspis Yang et al. 1993 [replaced]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Hendy 2009 | |||||
Age range: Taijangian or 506.50000 to 504.50000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Taijangian | China (Henan) | Trigonaspis hujiaensis (127072) |