Author:
McGregor,D.C.
Year:
1981
Title:
Spores and the Middle-Upper Devonian boundary.
Reference:
McGregor,D.C. (1981) Spores and the Middle-Upper Devonian boundary. Review of Palaeobotany and Palynology Vol. 34 P. 25- 47
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Genus Species Country(Region) From To
Densosporites Densosporites devonicus USSR Givetian Frasnian
Densosporites Densosporites devonicus France Givetian Frasnian
Densosporites Densosporites devonicus Canada Givetian Frasnian
Densosporites Densosporites devonicus England Givetian Frasnian
Densosporites Densosporites devonicus Spitsbergen Givetian Frasnian
Diatomozonotriletes Diatomozonotriletes devonicus Canada(Arctic) Givetian Frasnian
Diatomozonotriletes Diatomozonotriletes sp USSR(European) Givetian Frasnian
Diatomozonotriletes Diatomozonotriletes sp Canada(Arctic) Givetian Frasnian
Dictyotriletes Dictyotriletes perlotus England Givetian Frasnian
Geminospora Geminospora lemurata USSR Givetian Frasnian
Geminospora Geminospora lemurata France Givetian Frasnian
Geminospora Geminospora lemurata Canada Givetian Frasnian
Geminospora Geminospora lemurata England Givetian Frasnian
Geminospora Geminospora lemurata Spitsbergen Givetian Frasnian
Grandispora Grandispora inculta France Givetian Frasnian
Grandispora Grandispora inculta Canada Givetian Frasnian
Grandispora Grandispora inculta England Givetian Frasnian