| Suborder: |
Paraceltitina
|
| Superfamily: |
Xenodiscoidea
|
| Family: |
Tapashanitidae
|
| Genus: |
Tapashanites
|
| Species: | leiyangensis |
| Qualifier: | sn |
| Author: |
Xu 1977,p.582
|
| Lower Boundary: |
Anderssonoceras/Prototoceras base, 260.4 million years
|
| Upper Boundary: |
Rotodiscoceras top, 251.5 million years
|
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