Suborder:
|
Anarcestina
|
Superfamily:
|
Triainoceratoidea
|
Family:
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Maenioceratidae
|
Genus:
|
Maenioceras
|
Species:
|
heinorum |
Qualifier:
|
ss |
Author:
|
Ebbighausen et.al. 2007,p.167
|
Lower Boundary:
|
eiflius--ensensis, 392.2 million years
|
Upper Boundary:
|
MD2D--MD3A:A.sulcat.--Pharc.lateseptatum, 389 million years
|