Fifty - one and nineteen compounds were detected respectively from the volatile extracts of the fossils from miocene leaves of metasequoia glyptostroboides and early cretaceous seed cone of pityostrobus spp . by gas chromatography - mass spectrometry ( gc - ms ) analysis 摘要采用气相色谱质谱联用分析技术从中新世水杉叶片和白垩纪松型球果两种裸子植物化石中分别鉴定了51个和19个挥发性成分，类型涉及烷烃、烷烯、烷醇、长链脂肪酸及其酯、邻苯二甲酸酯、菇类和芳香族化合物。
