Manchester, S.R. 1987. Figure 8 in Manchester, 1987. Extinct ulmaceous fruits from the Tertiary of Europe and western North America. Review of Palaeobotany and Palynology 52:119-129.
Paleobotany + Palynology
Manchester, S.R. 1987. Figure 8 in Manchester, 1987. Extinct ulmaceous fruits from the Tertiary of Europe and western North America. Review of Palaeobotany and Palynology 52:119-129.