Suborder:
|
unrecognized
|
Superfamily:
|
unrecognized
|
Family:
|
unrecognized
|
Genus:
|
unrecognized
|
Species:
|
yohi |
Qualifier:
|
sn |
Author:
|
Sun 1939,p.42
|
Valid:
|
genus unrecognized |
Lower Boundary:
|
Pseudosteph./Tap.--Pseudotir./Pleuron., 252.5 million years
|
Upper Boundary:
|
AZB Paratirolites--Pleuronodoceras beds, 251.5 million years
|