Author:
Miller,M.A.;Playford,G.;Le H©riss©,A.
Year:
1997
Title:
Clypeolus, a new acritarch genus from the Ordovician and Silurian.
Reference:
Miller,M.A. et al. (1997) Clypeolus, a new acritarch genus from the Ordovician and Silurian. Review of Palaeobotany and Palynology Vol. 98 # 1 P. 95- 103
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Genus Species Country(Region) From To
Hoegisphaera Hoegisphaera tortugaides Oklahoma Llanvirnian