TaxNo: 1640Aulatornoceras constrictum
| Suborder: |
Tornoceratina
|
| Superfamily: |
Tornoceratoidea
|
| Family: |
Tornoceratidae
|
| Subfamily: |
Aulatornoceratinae
|
| Genus: |
Aulatornoceras
|
| Species: | constrictum |
| Qualifier: | ss |
| Author: |
Steininger 1849,p.27
|
| Lower Boundary: |
Givetian--Frasnian [GIV--FRS], 385.3 million years
|
| Upper Boundary: |
UD1L--UD2A:(frechi Zone base) [06,10], 374.5 million years
|