Suborder:
|
Goniatitina
|
Superfamily:
|
Shumarditoidea
|
Family:
|
Somoholitidae
|
Genus:
|
Somoholites
|
Species:
|
merriami cf. |
Qualifier:
|
sy |
Author:
|
Titus & Manger 2001,p.18
|
Valid:
|
Syngastrioceras sp. [TAX2339 ] |
Lower Boundary:
|
GBY E2c4--H1a(Nu.nuculum--I.subglobosum), 319 million years
|
Upper Boundary:
|
RUS Nm2a1--Nm2a2 (H.coronat.--Hu.proteus, 317.7 million years
|