TaxNo: 5852Genus Pericycloceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Neoicoceratoidea
|
| Family: |
Metalegoceratidae
|
| Subfamily: |
Metalegoceratinae
|
| Genus: | Pericycloceras |
| Qualifier: | gy |
| Author: |
Zhao & Zheng 1977,p.243
|
| Valid: | Bransonoceras Miller & Parizek,1948 |
| Lower Boundary: |
Sakmarian--Artinskian [SAK--ART], 284.4 million years
|
| Upper Boundary: |
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|