Suborder:
|
Goniatitina
|
Superfamily:
|
Cycloloboidea
|
Family:
|
Vidrioceratidae
|
Genus:
|
Vidrioceras
|
Species:
|
conlini |
Qualifier:
|
ss |
Author:
|
Miller & Downs 1950,p.216
|
Lower Boundary:
|
Pseudaktubites Z.,Virgilian base, 305 million years
|
Upper Boundary:
|
UTX Graham Fm. top, 301 million years
|