Ancyrochitina polentinensis
- Citations total:
- 2
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| original | Ludlovian | Spain | Schweineberg,J. Silurian chitinozoa from the Palencia Province (Cantabrian Mountains, North Spain). | 1987 | |
| details | Late Ludlovian | Brazil(Amazonas) | Grahn,Y. et al. Silurian-Devonian chitinozoan biostratigraphy along the Urubu, UatumЈ and Abacate rivers in the western part of the Amazonas Basin, Northern Brazil. | 2003 |