Suborder:
|
Prolecanitina
|
Superfamily:
|
Prolecanitoidea
|
Family:
|
Prolecanitidae
|
Subfamily:
|
Prolecanitinae
|
Genus:
|
Prolecanites
|
Species:
|
nilkaensis |
Qualifier:
|
ss |
Author:
|
Ruan 1991,p.194
|
Lower Boundary:
|
RUS Nm2b1--Nm2b2(S.krest.--P.alpharhip.), 316.8 million years
|
Upper Boundary:
|
RUS Nm2b2--Nm2b3 (alpharh.--R.reticul.), 315.4 million years
|