Suborder:
|
Goniatitina
|
Superfamily:
|
Pericycloidea
|
Family:
|
Pericyclidae
|
Subfamily:
|
Hammatocyclinae
|
Genus:
|
Hammatocyclus |
Qualifier:
|
ge |
Author:
|
Schindewolf 1951,p.81
|
Lower Boundary:
|
DER Erdbacher Kalk base [05,40], 349.5 million years
|
Upper Boundary:
|
IRL Lower Limestone top, 345.3 million years
|