Suborder:
|
Paraceltitina
|
Superfamily:
|
Xenodiscoidea
|
Family:
|
Xenodiscidae
|
Genus:
|
Phisonites |
Qualifier:
|
ge |
Author:
|
Shevyrev 1965,p.168
|
Lower Boundary:
|
AZB Vedioceras--Phisonites beds, 253.8 million years
|
Upper Boundary:
|
AZB Phisonites beds top, 253.4 million years
|