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Ordovician hystrichospheres and chitinozoans in limestone from the Bothnian Sea.
| Tynni, R. | |
| 1975 | |
| Geologian Tutkimuskesus (Finland) Bulletin, no.279, p.1-59, pl.1-4. | |
| Ordovician hystrichospheres and chitinozoans in limestone from the Bothnian Sea. |
Tynni, R., 1975: Ordovician hystrichospheres and chitinozoans in limestone from the Bothnian Sea; Geologian Tutkimuskesus (Finland) Bulletin, no.279, p.1-59, pl.1-4.