Genus
Pachysphaeridium Burman, 1970
Selection of related publications
Uutela, A., Tynni, R. 1991. Ordovician acritarchs from the Rapla borehole, Estonia. Geological Survey of Finland. Bulletin 353, 1-135.
Bockelie, T. G., Kjellström, G. 1979. Middle Ordovician acritarchs from the island of Odinsholm, Estonia. GFF 101, 3, 205-216. DOI:10.1080/11035897909448574
Kjellström, G. 1976. Lower Viruan (Middle Ordovician) microplankton from the Ekön borehole No 1 in Östergötland, Sweden. Sveriges Geologiska Undersökning C 724, 1-44.
Kjellström, G. 1971. Middle Ordovician microplankton from the Grötlingbo borehole no. 1 in Gotland, Sweden. Sveriges Geologiska Undersökning 669, 5-35.
List of species
2. Pachysphaeridium mochtiense (Górka, 1969) emend. Ribecai et Tongiorgi, 1999 | Kunda Stage→Lasnamägi Stage
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Classification