| |
| | GINKGO BILOBA -The Ginkgo Pages- Fossils |
 | | Ginkgoales is a group of gymnosperms composed of the family Ginkgoaceae traditionally described as consisting of six “families” and possibly 19 genera, for instance Baiera, Ginkgoites, Ginkgoidium, Ginkgo, Arctobaiera, Sphenobaiera, Windwardia, Trichopitys. |
 | | The Ginkgoales are so isolated evolutionarily that efforts to establish its closest extant sister group have remained controversial. |
 | | Nevertheless, there is a growing belief, supported by genetic research, that cycads are the most plausible closest living relative (both have flagellated motile sperm and pollen tubes) rather than conifers. |
| www.xs4all.nl /~kwanten/fossils.htm (1570 words) |
|