TaxNo: 5128Genus Longmenshanoceras
| Suborder: |
Paraceltitina
|
| Superfamily: |
Xenodiscoidea
|
| Family: |
Pleuronodoceratidae
|
| Genus: | Longmenshanoceras |
| Qualifier: | gy |
| Author: |
Zhao et al. 1978,p.150
|
| Valid: |
Tapashanites Chao & Liang [TAX5114] |
| Lower Boundary: |
Pseudosteph./Tap.--Pseudotir./Pleuron., 252.5 million years
|
| Upper Boundary: |
Pseudotir./Pleuron.--Rotodiscoceras beds, 252 million years
|