Tags: Ginkgo.

Sphenobaiera is a plant that lived in the Late Cretaceous period. The genus Sphenobaiera is used for plants with wedge-shaped leaves that can be distinguished from Ginkgo Ginkgoites and Baiera by the lack of a petiole. It went extinct about 72.6 million years ago. The family to which this genus belongs has not been conclusively established; an affinity with the Karkeniaceae has been suggested on morphological grounds.

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