Suborder:
|
Anarcestina
|
Superfamily:
|
Triainoceratoidea
|
Family:
|
Pharciceratidae
|
Genus:
|
Stenopharciceras
|
Species:
|
carinatum |
Qualifier:
|
sy |
Author:
|
Petter 1959,p.139
|
Valid:
|
Stenopharciceras arenicum Petter 1959 |
Lower Boundary:
|
mid.--up.varcus Zone [17,00], 389 million years
|
Upper Boundary:
|
Givetian--Frasnian [GIV--FRS], 385.3 million years
|