木兰科，双子叶植物纲木兰亚纲的一个较原始的科。广义的木兰科包括有木兰亚科、八角亚科、五味子亚科、水青树亚科等，狭义的木兰科指木兰亚科和鹅掌楸亚科。
Based on the fossil records, it is found that no credible megafossil record of Magnoliaceae exists in Jurassic deposits and all Jurassic microfossil reports remain equivocal and require further study up to now.
通过整理和分析木兰科植物的化石记录发现：不论是植物大化石还是花粉,迄今为止在白垩纪以前地层中尚无可靠的记录。
参考来源 - 木兰科的化石记录 FOSSIL RECORDS OF MAGNOLIACEAEThe single genus and small genus were rich,and single species family and depauperate family had large proportion. Meanwhile, there were a considerable number of Magnoliaceae plants along with many ancient plants whose evolution status were similar to some Magnoliaceae plants.
单属和小属的丰富,且单种科和寡种科比重大,同时这里还有相当多的木兰科,以及一些和木兰科植物进化地位相近的科的许多古老植物,各阶层成分和关键科目比较齐全,符合华夏区植物区系的特征。
参考来源 - 福建南平市延平区常绿阔叶林林分结构和物种多样性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
植物区系有许多古老的类型，如木兰科、八角科等。
There are many ancient geographical elements, such as Magnoliaceae and Illiciaceae.
对国产6属11种木兰科植物叶片的结构进行了比较解剖学研究。
The comparative anatomical structure of leaves of 11 species in 6 genera in the Magnoliaceae of China was studied.
木兰科植物具有观赏价值较高、利用历史悠久且极富文化底蕴等特点。
The magnoliaceous plants are characterized by a high ornamental value, a long use history and deep cultural connotations.
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