Suborder:
|
Goniatitina
|
Superfamily:
|
Neoicoceratoidea
|
Family:
|
Paragastrioceratidae
|
Subfamily:
|
Paragastrioceratinae
|
Genus:
|
Strigotumarceras |
Qualifier:
|
gy |
Author:
|
Popov 1970, p.133
|
Valid:
|
Tumaroceras Ruzhentsev 1961 |
Lower Boundary:
|
Sakmarian--Artinskian [SAK--ART], 284.4 million years
|
Upper Boundary:
|
Wordian--Capitanian (Midian) [WOR--CAP], 265.8 million years
|