Suborder:
|
Anarcestina
|
Superfamily:
|
Triainoceratoidea
|
Family:
|
Pharciceratidae
|
Genus:
|
Pharciceras
|
Species:
|
amplexum aff. |
Qualifier:
|
af |
Author:
|
Aboussalam & Becker 2001,p.89
|
Lower Boundary:
|
MD2D--MD3A:A.sulcat.--Pharc.lateseptatum, 389 million years
|
Upper Boundary:
|
MD3A--MD3B:latesept.--lunulicosta[17,90], 388 million years
|