Author:
Gray,J.;Laufeld,S.;Boucot,A.J.
Year:
1974
Title:
Silurian trilete spores and spore tetrads from Gotland.
Reference:
Gray,J. et al. (1974) Silurian trilete spores and spore tetrads from Gotland. Science Vol. 185 P. 260- 263
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Genus Species Country(Region) From To
Acritarchs Acritarchs Sweden Wenlockian Ludlovian
Chitinozoa Chitinozoa Sweden Wenlockian Ludlovian
Spore Spore tetrad Sweden Wenlockian Ludlovian
Trilete spores Trilete spores Sweden Wenlockian Ludlovian