Suborder:
|
Prolecanitina
|
Superfamily:
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Medlicottioidea
|
Family:
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Medlicottiidae
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Subfamily:
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Medlicottiinae |
Qualifier:
|
fs |
Author:
|
Karpinskii 1889,p.45
|
Lower Boundary:
|
RUS Zhigulian--Orenburgian [Ruzhentsev], 305 million years
|
Upper Boundary:
|
AZB Araxoceras--Vedioceras beds, 256 million years
|