TaxNo: 4054Hyattoceras compressum
| Suborder: |
Goniatitina
|
| Superfamily: |
Marathonitoidea
|
| Family: |
Hyattoceratidae
|
| Genus: |
Hyattoceras
|
| Species: | compressum |
| Qualifier: | ss |
| Author: |
Liang 1981,p.496
|
| Lower Boundary: |
Sakmarian--Artinskian [SAK--ART], 284.4 million years
|
| Upper Boundary: |
Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
|