|
Suborder:
|
Goniatitina
|
|
Superfamily:
|
Pericycloidea
|
|
Family:
|
Maxigoniatitidae
|
|
Subfamily:
|
Maxigoniatitinae |
|
Qualifier:
|
fs |
|
Author:
|
Korn, Klug & Mapes 1999, p.348
|
|
Lower Boundary:
|
Bollandoc./Bollandit.--Beyrichoceras BZ, 334.5 million years
|
|
Upper Boundary:
|
DER Go alpha 2--Go alpha 3 [11.60], 332.3 million years
|