| Suborder: |
Prolecanitina
|
| Superfamily: |
Medlicottioidea
|
| Family: |
Medlicottiidae
|
| Subfamily: |
Sicanitinae
|
| Genus: | Synartinskia |
| Qualifier: | ge |
| Author: |
Ruzhencev 1937,p.461
|
| Lower Boundary: |
Asselian--Sakmarian [ASS--SAK], 294.6 million years
|
| Upper Boundary: |
Chelamchin Fm. top, 270.6 million years
|
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