| Suborder: |
Tornoceratina
|
| Superfamily: |
Pseudohaloritoidea
|
| Family: |
Pseudohaloritidae
|
| Subfamily: |
Shouchangoceratinae
|
| Genus: |
Elephantoceras
|
| Species: | nodosum |
| Qualifier: | ss |
| Author: |
Zhao & Zheng 1977,p.233
|
| Lower Boundary: |
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|
| Upper Boundary: |
Wordian--Capitanian (Midian) [WOR--CAP], 265.8 million years
|
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