论文部分内容阅读
虽然已有很多关于麻黄科化石的报道,但是其作为整株植物保存下来的并不多见.正是由于对于部分保存的化石材料缺乏信任,通过DNA序列分析来研究麻黄的现代生物学家怀疑麻黄的早期起源进而提出了麻黄的近代起源说.为了进一步增进对麻黄植物历史的了解,报道了来自辽宁省早白垩世义县组整株保存的麻黄化石——洪涛麻黄(新种).这些化石具有麻黄的典型特征,如灌木习性、交互对生的分支方式、带有珠孔管的顶生雌性单位.这些整株保存的化石为麻黄的早白垩纪录提供了强有力的支持,有助于消除目前关于麻黄起源时间的争议,并对人们了解麻黄科植物的形态、生活习性、生态和演化有所裨益.
Although there have been many reports of ephedra fossils, their preservation as whole plants is uncommon.Due to the lack of trust in partially conserved fossil materials, modern biologists who study ephedra by DNA sequence analysis The early origin of ephedra and then put forward the origin of the ephedra said that in order to further enhance the understanding of ephedra history, reported from the early Cretaceous Yi County, Liaoning Province, the whole plant preserved ephemeroptera fossil - Hong Tao Ephedra (new species) These Fossils have the typical characteristics of ephedra such as shrub habitat, reciprocal mating branches, and top female units with beaded tube.These preserved fossils provide strong support for ephedra’s record of early-chalky records Eliminate the current controversy about the origin of ephedra and help to understand the morphology, living habits, ecology and evolution of ephedra.