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Psammolepis
Taxonomy
Psammolepis was named by Agassiz (1843).
It was assigned to Psammosteidae by Jordan (1963); and to Heterostraci by Blieck et al. (2002).
It was assigned to Psammosteidae by Jordan (1963); and to Heterostraci by Blieck et al. (2002).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1843 | Psammolepis Agassiz p. 177 |
| 1963 | Psammolepis Jordan p. 585 |
| 2002 | Psammolepis Blieck et al. |
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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. †Psammolepis Agassiz 1843
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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: Emsian or 407.60000 to 380.20000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Emsian | Belarus (Gormel) | P. toriensis (232956) | |
| Eifelian | Russian Federation | P. sp. (90332) | |
| Eifelian | Estonia | P. toriensis (225791) | |
| Early/Lower Givetian | Latvia | P. proia (225802 225850) | |
| Early/Lower Givetian | Estonia | P. proia (225803 225804) | |
| Early/Lower Givetian | Russian Federation | P. sp. (90333) | |
| Late/Upper Givetian | Latvia | P. paradoxa, P. alata (225777) | |
| Late/Upper Givetian | Russian Federation | P. sp. (90334) | |
| Late/Upper Givetian | Estonia | P. spp., P. abavica (225778) |