Author:

Tynni,R.

Year:

1975

Title:

Ordovician hystrichospheres and chitinozoans in limestone from the Bothnian Sea.

Reference:

Tynni,R. (1975) Ordovician hystrichospheres and chitinozoans in limestone from the Bothnian Sea. Geological Survey of Finland, Bulletin # 279 P. 5- 59

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