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Estiastra
General
Description
Stratigraphy
Literature
Notes
Species
Year
Author
Title
1959
Eisenack, A.
Neotypen baltischer Silur-Hystrichosphären und neue Arten.
1994
Sarjeant, W.A.S. and Stancliffe, R.P.W.
The Micrhystridium and Veryhachium complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): a taxonomic reconsideration.
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