''Ginkgo adiantoides'' is an extinct

ginkgo ''Ginkgo'' is a genus of non-flowering seed plants. The scientific name is also used as the English name. The order to which it belongs, Ginkgoales, first appeared in the Permian, 270 million years ago, and is now the only living genus within ...

species in the family

Ginkgoaceae The Ginkgoaceae is a family of gymnosperms which appeared during the Mesozoic Era, of which the only extant representative is ''Ginkgo biloba'', which is for this reason sometimes regarded as a living fossil A living fossil is an extant tax ...

from the

Late Cretaceous The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', the ...

to the

Miocene The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recen ...

. Evolutionary history is unresolved. Morphological and molecular data show a wide range of possible relationships with cycads and conifers. Ginkgo leaves were borne on both long and short shoots on lateral branches of the main stem. They are recognized by their distinctive leaf shape and open dichotomous venation pattern. Ginkogoales are spermatophytes, belong to the lignophyte clade, and are euphyllophytes. Ginkgo adiantoides 1

References

* Paleobotany, Second Edition: The Biology and Evolution of Fossil Plants by Thomas N. Taylor, Edith L. Taylor and Michael Krings - Page 748 * North America Through Time: A Paleontological History of Our Continent by Lynne M. Clos - Page 172 * Jurassic and Cretaceous Floras and Climates of the Earth by V. A. Vakhrameev, Norman F. Hughes and Ju V. Litvinov - Page 110 * Fossil Plants: A Text-Book for Students of Botany and Geology (Cambridge Library Collection - Earth Science) by A. C. Seward - Page 10 adiantoides Paleocene plants Eocene plants Miocene plants Oligocene plants Prehistoric trees {{Paleo-gymnosperm-stub