TaxNo: 6450Cravenoceras? xiaoyuchanense
| Suborder: |
Goniatitina
|
| Superfamily: |
Neoglyphioceratoidea
|
| Family: |
Cravenoceratidae
|
| Subfamily: |
Cravenoceratinae
|
| Genus: |
Cravenoceras?
|
| Species: | xiaoyuchanense |
| Qualifier: | sn |
| Author: |
Yang 1987,p.159
|
| Lower Boundary: |
Serpukhovian--Bashkirian [SPK--BSH], 318.1 million years
|
| Upper Boundary: |
Bashkirian--Moscovian [BSH--MOS], 311.7 million years
|