Suborder:
|
Paraceltitina
|
Superfamily:
|
Xenodiscoidea
|
Family:
|
Tapashanitidae
|
Genus:
|
Tapashanites
|
Species:
|
leiyangensis |
Qualifier:
|
sn |
Author:
|
Xu 1977,p.582
|
Lower Boundary:
|
Anderssonoceras/Prototoceras base, 260.4 million years
|
Upper Boundary:
|
Rotodiscoceras top, 251.5 million years
|