TaxNo: 5379Genus Changhsingoceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Cycloloboidea
|
| Family: |
Cyclolobidae
|
| Subfamily: |
Cyclolobinae
|
| Genus: | Changhsingoceras |
| Qualifier: | ge |
| Author: |
Chao & Liang 1965,p.1820
|
| Lower Boundary: |
Paratirol./Shevyrev.--Pseudosteph./Tap., 253 million years
|
| Upper Boundary: |
Rotodiscoceras top, 251.5 million years
|