| Suborder: |
Paraceltitina
|
| Superfamily: |
Xenodiscoidea
|
| Family: |
Xenodiscidae
|
| Genus: |
Xenodiscus
|
| Species: | araxensis |
| Qualifier: | sy |
| Author: |
Shevyrev 1965,p.166
|
| Valid: | Xenodiscus dorashamensis Shevyrev 1965 |
| Lower Boundary: |
AZB Vedioceras--Phisonites beds, 253.8 million years
|
| Upper Boundary: |
AZB Phisonites beds top, 253.4 million years
|
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