TaxNo: 5012Megatrochoceras striatum+
| Suborder: |
Goniatitina
|
| Superfamily: |
Gonioloboceratoidea
|
| Family: |
Gonioloboceratidae
|
| Genus: |
Megatrochoceras
|
| Species: | striatum+ |
| Qualifier: | ss |
| Author: |
Yang 1978,p.158
|
| Lower Boundary: |
Yeadonian--Langsettian, Westph.A [YEA--, 313 million years
|
| Upper Boundary: |
Duckmantian--Bolsovian, Westphal.B--C, 310.6 million years
|