Sphaerochitina piriformis
- Citations total:
- 3
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| original | Ordovician | Silurian | Baltic | Eisenack,A. Chitinozoa of the Baltic Region. | 1968 |
| details | Silurian | France(Manche) | Poncet,J. et al. New stratigraphic data on the Comprehensive Series (D1-S4), of Cotentin. | 1971 | |
| details | Nd | Nd | Eisenack,A. Contribution to the study of chitinozoans. | 1972 |