Suborder:
|
Prolecanitina
|
Superfamily:
|
Medlicottioidea
|
Family:
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Medlicottiidae
|
Subfamily:
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Sicanitinae
|
Genus:
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Synartinskia
|
Species:
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belcheri |
Qualifier:
|
ss |
Author:
|
Nassichuk 1970,p.80
|
Lower Boundary:
|
TAP Kochusu Fm. base, 270.6 million years
|
Upper Boundary:
|
Kochusu Fm.,lower,basal lst.--lower part, 270.3 million years
|