TaxNo: 3662Tapashanites involutus
| Suborder: |
Paraceltitina
|
| Superfamily: |
Xenodiscoidea
|
| Family: |
Tapashanitidae
|
| Genus: |
Tapashanites
|
| Species: | involutus |
| Qualifier: | ss |
| Author: |
Chao & Liang 1966,pl.4
|
| Lower Boundary: |
Anderssonoceras/Prototoceras base, 260.4 million years
|
| Upper Boundary: |
Anderssonoc./Prototoc.--Araxoc./Kongl., 258 million years
|