TaxNo: 4989Tornoceras? nummularius
| Suborder: |
Tornoceratina
|
| Superfamily: |
Tornoceratoidea
|
| Family: |
Tornoceratidae
|
| Subfamily: |
Tornoceratinae
|
| Genus: |
Tornoceras?
|
| Species: | nummularius |
| Qualifier: | sn |
| Author: |
Roemer 1843,p.35
|
| Lower Boundary: |
Givetian--Frasnian [GIV--FRS], 385.3 million years
|
| Upper Boundary: |
UD1K--UD1L:varicos.--C.holzapfeli [05,35, 375.1 million years
|