Suborder:
|
Tornoceratina
|
Superfamily:
|
Tornoceratoidea
|
Family:
|
Tornoceratidae
|
Subfamily:
|
Tornoceratinae
|
Genus:
|
Tornoceras
|
NomSpecies:
|
escoti
|
Species:
|
carnicum |
Qualifier:
|
sy |
Author:
|
Gortani 1907,p.224
|
Valid:
|
Gundolficeras escoti (Frech 1902) [TAX906 ] |
Lower Boundary:
|
UD2A--UD2B:(verneuili Zone base) [07,75], 374 million years
|
Upper Boundary:
|
UD2H--UD2I:(mamilliferum base) [12,90], 370 million years
|