Suborder:
|
Goniatitina
|
Superfamily:
|
Marathonitoidea
|
Family:
|
Hyattoceratidae
|
Genus:
|
Hyattoceras
|
Species:
|
subgeinitzi |
Qualifier:
|
ss |
Author:
|
Haniel 1915,p.112
|
Lower Boundary:
|
RIT Basleo beds base, 270.6 million years
|
Upper Boundary:
|
RIT Amarassi beds top, 258 million years
|