- Ginkgophytes - http://taggart.glg.msu.edu/isb200/ginkgo.htm
Brief discussion of the lineage that originated in the late Paleozoic, became quite diverse during the Mesozoic, and is now represented by one species. Includes fossil images.
- Ginkgoales: Fossil Record - http://www.ucmp.berkeley.edu/seedplants/ginkgoales/ginkgofr.html
Illustrated discussion of the fossil record of ginkgos through the Tertiary.
- Ginkgoaceae - http://www.botanik.uni-bonn.de/conifers/gi/index.htm
Taxonomic information and botanical description for Class Ginkgoopsida, Order Ginkgoales, Family Ginkgoaceae, and Genus Ginkgo.
- Ginkgo digitata - http://www.fossilhut.com/Ginkgo%20digi.%202.jpg
Fossil image.
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