| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Ptychagnostus spinosus
Taxonomy
Ptychagnostus spinosus was named by Ergaliev (1980). It is not extant.
Synonymy list
| Year | Name and author |
|---|---|
| 1980 | Ptychagnostus spinosus Ergaliev |
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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.
†Ptychagnostus spinosus Ergaliev 1980
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family | |||||
| Reference: Hendy 2009 | |||||
Age range: Zhanaarykian or 503.00000 to 500.50000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Zhanaarykian | Kazakhstan | Ptychagnostus spinosus (9963 9964 118095 118096) |