Title: |
Aspects of Permian palaeobotany and palynology. XVII. Conifer extinction in Europe at the Permian-Triassic junction: Morphology, ultrastructure and geographic/stratigraphic distribution of Nuskoisporites dulhuntyi (prepollen of Ortiseia, Walchiaceae) |
Source: |
Review of Palaeobotany and Palynology
[0034-6667]
Poort,
Ruud
yr:1997
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