Suborder:
|
Goniatitina
|
Superfamily:
|
Pericycloidea
|
Family:
|
Pericyclidae
|
Subfamily:
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Ammonellipsitinae
|
Genus:
|
Stenocyclus
|
Species:
|
virgatus aff. |
Qualifier:
|
af |
Author:
|
Popov 1968,p.110
|
Lower Boundary:
|
KIT Dzhapryk Fm. base F1, 348 million years
|
Upper Boundary:
|
KIT Dzhapryk Fm. A3--A4, 345.3 million years
|