Suborder:
|
Anarcestina
|
Superfamily:
|
Triainoceratoidea
|
Family:
|
Pharciceratidae
|
Genus:
|
Pharciceras
|
Species:
|
lunulicosta |
Qualifier:
|
ss |
Author:
|
Sandberger & Sandb. 1850,p.69
|
Lower Boundary:
|
MD3A--MD3B:latesept.--lunulicosta[17,90], 388 million years
|
Upper Boundary:
|
Givetian--Frasnian [GIV--FRS], 385.3 million years
|