Ginkgo sibirica (Heer) Seward was usually seen in the Lower and Middle Jurassic, It is rare in the Lower Cretaceous, the present record shows it can also survive in the Early Cretaceous.
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总之,这些新发现和新记录对探讨银杏类和茨康类各属种的地质地理分布和演化具有重要意义。
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