Botanical Literature Details

• Author(s)

  Friis, Else M., et al.

• Article or Chapter Title

  Welwitschioid diversity in the Early Cretaceous: evidence from fossil seeds with pollen from Portugal and eastern North America

• Year

  2014

• Journal or Book

  Grana: An international journal of palynology and aerobiology 53(3): 175--196

• Notes

  Keywords: charcoal, chlamydospermous seeds, fossil seeds, Gnetales, mesofossils, polyplicate pollen, Potomac Group, Welwitschia, Bicatia, Virginia, Portugal