Ancyrochitina marga
- Citations total:
- 2
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| details | Ashgillian | Canada(Quebec) | Achab,A. Ordovician chitinozoan zonation of Quebec and Western Newfoundland. | 1989 | |
| details | Ashgillian | Canada(Newfoundland) | Achab,A. Ordovician chitinozoan zonation of Quebec and Western Newfoundland. | 1989 |