Suborder:
|
Goniatitina
|
Superfamily:
|
Neoicoceratoidea
|
Family:
|
Metalegoceratidae
|
Subfamily:
|
Eothinitinae
|
Genus:
|
Eothinites
|
Species:
|
cancellatus |
Qualifier:
|
ss |
Author:
|
Leonova 1992,p.152
|
Lower Boundary:
|
Sygar Fm.--Chelamchin Fm., 275.6 million years
|
Upper Boundary:
|
Chelamchin Fm. top, 270.6 million years
|