Suborder:
|
Clymeniina
|
Superfamily:
|
Clymenioidea
|
Family:
|
Platyclymeniidae
|
Genus:
|
Trigonoclymenia
|
Species:
|
unisulcata |
Qualifier:
|
ss |
Author:
|
Czarnocki 1989,p.56
|
Lower Boundary:
|
P.delph.--low.Platyclym.annulata IIIb/IV, 367.6 million years
|
Upper Boundary:
|
UD4B--UD4C: serpentina Zone base [16,45], 366.4 million years
|