Author:
Playford,G.;Ribecai,C.;Tongiorgi,M.
Year:
1995
Title:
Ordovician acritarch genera Peteinosphaeridium, Liliosphaeridium and Cycloposphaeridium: Morphology, taxonomy, biostratigraphy and palaeogeographic significance
Reference:
Playford,G. et al. (1995) Ordovician acritarch genera Peteinosphaeridium, Liliosphaeridium and Cycloposphaeridium: Morphology, taxonomy, biostratigraphy and palaeogeographic significance Bollettino della SocietĀ  Paleontologica Italiana Vol. 34 # 1 P. 3- 54
Google Academy:
try to search by title in english
Genus Species Country(Region) From To
Peteinosphaeridium Peteinosphaeridium nanofurcatum Nd Nd
Peteinosphaeridium Peteinosphaeridium parvispinosum Finland Middle Ordovician
Peteinosphaeridium Peteinosphaeridium paucifurcatum Nd Nd
Peteinosphaeridium Peteinosphaeridium pennatum Morocco Arenigian
Peteinosphaeridium Peteinosphaeridium polyfurcatum Finland Middle Ordovician
Peteinosphaeridium Peteinosphaeridium robustiramosum China(Hupei) Arenigian
Peteinosphaeridium Peteinosphaeridium sibiricum Nd Nd
Peteinosphaeridium Peteinosphaeridium spiraliculum USA Late Caradocian
Peteinosphaeridium Peteinosphaeridium strigosum Czechoslovakia Early Llanvirnian
Peteinosphaeridium Peteinosphaeridium tenuifilosum China(Hupei) Arenigian
Peteinosphaeridium Peteinosphaeridium trifurcatum USSR(Estonian SSR) Early Rhuddanian
Peteinosphaeridium Peteinosphaeridium trifurcatum Nd Nd
Peteinosphaeridium Peteinosphaeridium velatum Sweden Langevoja Hunderum
Peteinosphaeridium Peteinosphaeridium velatum Nd Nd
Peteinosphaeridium Peteinosphaeridium xiphopterum China Early Ordovician
Polyancistrodorus Polyancistrodorus magnispinosus USSR(Estonian SSR) Llanvirnian Llandeilian
Polyancistrodorus Polyancistrodorus phylloides USSR(Estonian SSR) Llanvirnian