Author:
Rubinstein,C.V.
Year:
1996
Title:
Silurian acritarchs from South America: A review.
Reference:
Rubinstein,C.V. (1996) Silurian acritarchs from South America: A review. Acta Universitatis Carolinae-Geologica Vol. 40 # 3 P. 603- 628
Google Academy:
try to search by title in english
Genus Species Country(Region) From To
Veryhachium Veryhachium reductum Bolivia Late Ludlovian Pridolian
Visbysphaera Visbysphaera sp Ashgillian Late Llandoverian
Visbysphaera Visbysphaera sp Bolivia Late Ludlovian Pridolian