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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Genus Species Country(Region) From To
Peteinosphaeridium Peteinosphaeridium groetlingboense Finland Middle Ordovician
Peteinosphaeridium Peteinosphaeridium heteromorphicum Finland Middle Ordovician
Peteinosphaeridium Peteinosphaeridium majorfurcatum Finland Middle Ordovician
Peteinosphaeridium Peteinosphaeridium micranthum Finland Middle Ordovician
Peteinosphaeridium Peteinosphaeridium nudum Finland Middle Ordovician
Peteinosphaeridium Peteinosphaeridium paucifurcatum Finland Middle Ordovician
Peteinosphaeridium Peteinosphaeridium sp Finland Middle Ordovician
Peteinosphaeridium Peteinosphaeridium trifurcatum Finland Middle Ordovician
Peteinosphaeridium Peteinosphaeridium trifurcatum Finland Middle Ordovician
Pterocystidiopsis Pterocystidiopsis bottnica sp. nov. Finland Middle Ordovician
Pterocystidiopsis Pterocystidiopsis elegans sp. nov. Finland Middle Ordovician
Rhabdochitina Rhabdochitina gracilis sp. nov. Finland Middle Ordovician
Rhabdochitina Rhabdochitina sp Finland Middle Ordovician
Rhabdochitina Rhabdochitina taenia Finland Middle Ordovician
Sphaerochitina Sphaerochitina pistilliformis Finland Middle Ordovician
Symplassosphaeridium Symplassosphaeridium incrustatum Finland Middle Ordovician
Synsphaeridium Synsphaeridium tuberculatum Finland Middle Ordovician