拟桦属（学名：Betulites），又名白垩桦木属，是桦木科的一个已灭绝的属。生存于晚白垩纪至中新世，主要生长在温带气候的潮湿地区。[2]
特征
拟桦属的叶片和桦木属十分相似，都呈圆形、椭圆形或心形，且边缘都为齿状。叶脉包括一条中央叶脉和与其呈45度角分支出去的小叶脉。发掘出的叶片化石大多与枝条分离，表明它们和桦木属一样属于季节性落叶植物。[2]
物种[1]
- Betulites oblongus Campbell, 1961
- Betulites obtusus Campbell, 1961
- Betulites quadratifolius Campbell, 1961
- Betulites snowii Campbell, 1961
参考文献
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