Author:
Sarjeant,W.A.S.;Stancliffe,R.P.W.
Year:
1994
Title:
The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration.
Reference:
Sarjeant,W.A.S. et al. (1994) The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. Micropaleontology Vol. 40 # 1 P. 1- 77
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Genus Species Country(Region) From To
Comasphaeridium Comasphaeridium capillum USSR(Siberia) Silurian
Micrhystridium Micrhystridium apiculatum USSR(Siberia) Cambrian
Micrhystridium Micrhystridium certum USSR(Siberia) Late Precambrian Early Cambrian
Micrhystridium Micrhystridium duplex USSR(Siberia) Cambrian
Micrhystridium Micrhystridium insuetum USSR(Siberia) Late Precambrian Early Cambrian
Micrhystridium Micrhystridium perleve USSR(Siberia) Late Precambrian
Micrhystridium Micrhystridium unilaterale USSR(Siberia) Cambrian
Pulvinosphaeridium Pulvinosphaeridium ansanellum USSR(Siberia) Wenlockian
Pulvinosphaeridium Pulvinosphaeridium novum USSR(Siberia) Early Gothlandian
Veryhachium Veryhachium connexum USSR(Siberia) Late Ordovician
Veryhachium Veryhachium parvum USSR(Siberia) Early Gothlandian
Comasphaeridium Comasphaeridium villosum USSR(Ukrainian SSR) Early Cambrian
Filisphaeridium Filisphaeridium brachyspinosum USSR(Ukrainian SSR) Early Cambrian
Filisphaeridium Filisphaeridium staplini USSR(Ukrainian SSR) Late Gothlandian
Comasphaeridium Comasphaeridium brachyspinosum USSR(Ukrainian SSR) Early Cambrian
Heliosphaeridium Heliosphaeridium lubomlense USSR(Ukrainian SSR) Early Cambrian
Micrhystridium Micrhystridium breviradiatum USSR(Ukrainian SSR) Early Gothlandian