Genus
Parmasphaeridium Jachowicz-Zdanowska, 2013
Aiheeseen liittyvät julkaisut
Fridrichsone, A. 1971. Acritarchs Baltisphaeridium and Hystrichosphaeres (?) from the Cambrian sediments of Latvia. Palaeontology and stratigraphy of the Baltic and Byelorussia. Number III, pp. 5-17. Mintis.
List of species
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