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Unarkaspis
Taxonomy
Unarkaspis was named by Elliott (1983).
It was assigned to Protopteraspididae by Blieck (1984); to Pteraspididae by Blieck et al. (2002); and to Pteraspidoidei by Randle and Sansom (2017).
It was assigned to Protopteraspididae by Blieck (1984); to Pteraspididae by Blieck et al. (2002); and to Pteraspidoidei by Randle and Sansom (2017).
Synonymy list
| Year | Name and author |
|---|---|
| 1983 | Unarkaspis Elliott |
| 1984 | Unarkaspis Blieck p. 105 |
| 2002 | Unarkaspis Blieck et al. p. 812 |
| 2017 | Unarkaspis Randle and Sansom p. 597 |
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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. †Unarkaspis Elliott 1983
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum | |||||
| Reference: Kiessling 2004 | |||||
Age range: Lochkovian or 419.20000 to 410.80000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Lochkovian | Russian Federation | U. sp. (90330) |