Suborder:
|
Goniatitina
|
Superfamily:
|
Pericycloidea
|
Family:
|
Muensteroceratidae
|
Genus:
|
Terektytes |
Qualifier:
|
ge |
Author:
|
Librovitch 1957,p.263
|
Lower Boundary:
|
KAK Terekty Beds base, 350 million years
|
Upper Boundary:
|
IRL Lower Limestone top, 345.3 million years
|