Author:
Downie,C.
Year:
1979
Title:
Devonian acritarchs. (In: The Devonian System. M.R. House et al, editors)
Reference:
Downie,C. (1979) Devonian acritarchs. (In: The Devonian System. M.R. House et al, editors) Special Papers in Palaeontology # 23 P. 185- 188
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Genus Species Country(Region) From To
Visbysphaera Visbysphaera jardinei Algeria Wenlockian Ludlovian