Author:
Martin,F.
Year:
1993
Title:
Acritarchs: A review
Reference:
Martin,F. (1993) Acritarchs: A review Biological Review Vol. 68 P. 475- 538
Google Academy:
try to search by title in english
Genus Species Country(Region) From To
Vulcanisphaera Vulcanisphaera imparilis England Early Ordovician
Vulcanisphaera Vulcanisphaera turbata Nd Cambrian
Winwaloeusia Winwaloeusia ranulaeforma Nd Late Devonian