TaxNo: 4579Paratirolites spinosus
| Suborder: |
Paraceltitina
|
| Superfamily: |
Xenodiscoidea
|
| Family: |
Dzhulfitidae
|
| Genus: |
Paratirolites
|
| Species: | spinosus |
| Qualifier: | ss |
| Author: |
Shevyrev 1965,p.173
|
| Lower Boundary: |
AZB Dzhulfites beds base, 253 million years
|
| Upper Boundary: |
AZB Dzhulfites--Bernhardites beds, 252.5 million years
|