TaxNo: 268Ammonellipsites nikitini
| Suborder: |
Goniatitina
|
| Superfamily: |
Pericycloidea
|
| Family: |
Pericyclidae
|
| Subfamily: |
Ammonellipsitinae
|
| Genus: |
Ammonellipsites
|
| Species: | nikitini |
| Qualifier: | ss |
| Author: |
Librovitch 1927,p.14
|
| Lower Boundary: |
RUN Kos'vinskii gorizont base, 349 million years
|
| Upper Boundary: |
RUN Nortnichskiy gorizont top, 339 million years
|