被子植物的花化石研究

五十多年前胡骕在研究山东临朐县山旺组的植物化石中,发现有花的化石,仅保存了5个花瓣或仅5个萼片,均难给予确切的分类位置;六十年代我们两次去山旺野外工作,发现为数较多,同样仅保存花瓣或萼片的化石。本文研究的是80年代发现并保存较为完好的花化石。新近李凤麟详细论述了各门类化石,均认为山旺组的地质时代属中中新世。近十余年来,国际上被子植物的花化石的研究进展较快。每次花化石的发现,对研究被子植物种系发生、系统位置及在地史中的演化及演变速率等均是极重要

STUDY ON THE FOSSIL FLOWERS OF ANGIOSPERM

Two fossil flowers of angiosperms are described from the Shanwang Formation of Shan- dong Province,eastern China,where plentful palaeontological fossils have been discovered.They are Archimalus calycina gen.et sp.nov.,and Papilionacea indigoferoides gen.et sp.nov.In comparsion with extant plants Archimalus calycina shows a close relationship to some members of the family Rosaceae,especially the genus Malus.,and Papilionacea indigoferoides exhibits a similar pattern of flower of the family Papilionaceae.The fossil plant with such a kind of flower is considered belonging to that family.The age of Shanwang Formation is considered Mid-Miocene.