Suborder:
|
Goniatitina
|
Superfamily:
|
Neoicoceratoidea
|
Family:
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Metalegoceratidae
|
Subfamily:
|
Metalegoceratinae
|
Genus:
|
Metalegoceras
|
Species:
|
shyndense |
Qualifier:
|
ss |
Author:
|
Leonova 1989,p.121
|
Lower Boundary:
|
TAP Kochusu Fm. base, 270.6 million years
|
Upper Boundary:
|
TAP Shindyi Fm. top, 265.8 million years
|