Species
Micrhystridium longispinosum (Eisenack, 1931)
Synonymy list
1931     Ovum hispidum longispinosum n. subsp. — Eisenack , pp. 110, fig. 5:6-12
1939     Hystrichosphaeridium longispinosum Eisenack — Eisenack , pp. 146, fig. 9-11
1951     Hystrichosphaeridium longispinosum Eisenack, 1931 — Eisenack , pp. 188, fig. 1:1-6
1959     Baltispbaeridium longispinosum (Eisenack, 1931) — Eisenack , pp. 194, fig. 15:1-8
1965     Baltispbaeridium longispinosum (Eisenack, 1931) — Eisenack , pp. 134, fig. 13:1-2
1971     Baltispbaeridium longispinosum (Eisenack, 1931) — Kjellström , pp. 29, fig. 2:2
1976     Baltispbaeridium longispinosum (Eisenack, 1931) — Eisenack , pp. 192, fig. 3:10-12
1994     Micrhystridium longispinosum (Eisenack, 1931) — sarjeant & Stancliffe , pp. 21
Selection of related publications
Uutela, A., Tynni, R. 1991. Ordovician acritarchs from the Rapla borehole, Estonia.  Geological Survey of Finland. Bulletin   353,      1-135.
Kjellström, G. 1971. Ordovician microplankton (Baltisphaerids) from the Grötlingbo borehole no. 1 in Gotland, Sweden.  Sveriges Geologiska Undersökning   655,      1-75.
Eisenack, A. 1959. Neotypen baltischer Silur-Hystrichospharen und neue Arten.  Palaeontographica   112,      93–211.
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Classification
References based on distribution
- Kjellström, 1971a Grötlingbo 1 borehole, Gotland 421 - 459 Viru Series
- Eisenack, 1959b Böda, Öland