Suborder:
|
Prolecanitina
|
Superfamily:
|
Medlicottioidea
|
Family:
|
Medlicottiidae
|
Subfamily:
|
Miklukhoceratinae |
Qualifier:
|
fy |
Author:
|
Leonova 1989,p.95
|
Valid:
|
Propinacoceratinae Plummer & Scott,1937 [TAX5925 ] |
Lower Boundary:
|
UTX Clyde Fm. base, 290 million years
|
Upper Boundary:
|
RIT Amarassi beds top, 258 million years
|