TaxNo: 6286Subgenus Graciloceratites
| Suborder: |
Paraceltitina
|
| Superfamily: |
Xenodiscoidea
|
| Family: |
Pleuronodoceratidae
|
| Genus: |
Pleuronodoceras
|
| Subgenus: | Graciloceratites |
| Qualifier: | gy |
| Author: |
Chao & Liang 1974,p.305
|
| Valid: |
Pleuronodoceras Chao & Liang TAX5127 |
| Lower Boundary: |
Pseudosteph./Tap.--Pseudotir./Pleuron., 252.5 million years
|
| Upper Boundary: |
Permian--Triassic (Induan base), 251 million years
|