TaxNo: 4997Cancelloceras (Cancelloceras) pachygyrum
| Suborder: |
Goniatitina
|
| Superfamily: |
Gastrioceratoidea
|
| Family: |
Gastrioceratidae
|
| Genus: |
Cancelloceras
|
| Subgenus: |
Cancelloceras
|
| Species: | pachygyrum |
| Qualifier: | ss |
| Author: |
Yang et al. 1983,pl.1,fig.11
|
| Lower Boundary: |
RUS Nm2b3--Nm2c1,Bilinguites-Cancelloc.G, 314.8 million years
|
| Upper Boundary: |
Marsdenian--Yeadonian [MRD--YEA], 313.8 million years
|