| Suborder: |
Goniatitina
|
| Superfamily: |
Goniatitoidea
|
| Family: |
Goniatitidae
|
| Genus: |
Lusitanoceras
|
| Species: | irtyshense |
| Qualifier: | ss |
| Author: |
Librovitch 1940,p.162
|
| Lower Boundary: |
DER Go beta--gamma, granos.base [P1--P2], 328.2 million years
|
| Upper Boundary: |
DER Go gamma 1-2,liethens.base,P2c base, 327.8 million years
|
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