TaxNo: 5164Genus Leptogyroceras
| Suborder: |
Otoceratina
|
| Family: |
Anderssonoceratidae
|
| Subfamily: |
Planodiscoceratinae
|
| Genus: | Leptogyroceras |
| Qualifier: | ge |
| Author: |
Chao & Liang 1966,p.
|
| Valid: |
Pericarinoceras Zhao & Liang [TAX5158] |
| Lower Boundary: |
Anderssonoceras/Prototoceras base, 260.4 million years
|
| Upper Boundary: |
Anderssonoc./Prototoc.--Araxoc./Kongl., 258 million years
|