CAJ | 학술논문

在埃迪卡拉纪-寒武纪地球生命演化和环境变化的重要时期，贵州地区众多后生生物化石群中保存了极为丰富的宏观藻类，这些宏观藻类不仅在早期植物演化中具有极其重要的作用，而且在探索动物与环境协同演化方面也能提供一些重要的信息。文中将分布于贵州埃迪卡拉系陡山沱组-寒武系牛蹄塘组及凯里组的裂散长索藻Longifuniculum dissolutum化石形态进行了详细描述和纵向对比研究，其结果表明自陡山沱组至凯里组沉积期，裂散长索藻的形态变化趋势是藻体逐渐变短变宽，藻丝逐渐变细。这种变化趋势有可能反映L. dissolutum与生态环境变化相适应，也正由于L. dissolutum自身的适应环境的变化使其能够顺利跨过新元古代-寒武纪的重大转折期。从而证实，裂散长索藻L. dissolutum是一类环境适应较强、遗传相对较稳定的一类宏观藻类。
재애적잡랍기-한무기지구생명연화화배경변화적중요시기，귀주지구음다후생생물화석군중보존료겁위봉부적굉관조류，저사굉관조류불부재조기식물연화중구유겁기중요적작용，이차재탐색동물여배경협동연화방면야능제공일사중요적신식。문중장분포우귀주애적잡랍계두산타조-한무계우제당조급개리조적렬산장색조Longifuniculum dissolutum화석형태진행료상세묘술화종향대비연구，기결과표명자두산타조지개리조침적기，렬산장색조적형태변화추세시조체축점변단변관，조사축점변세。저충변화추세유가능반영L. dissolutum여생태배경변화상괄응，야정유우L. dissolutum자신적괄응배경적변화사기능구순리과과신원고대-한무기적중대전절기。종이증실，렬산장색조L. dissolutum시일류배경괄응교강、유전상대교은정적일류굉관조류。
Earth experienced major biological and environmental revolutions during the Precambrian-Cambrian transitional interval, in which the abundant macro-algal were found from the early metzoan biotas in Guizhou Area. The macro-algal not only plays important role in the early evolution of algae plants but also provide some available information in the research of animal evolution and environment change. By means of a longitudinal comparative study, the change trend of the L. dissolutum from Ediacaran to Cambrian was found the thallus became shorter and wider gradually with the filaments tapered off. This diversification may make the thallus adapt to the change of ecological environment from Ediacaran to Cambrian and also allows itself to be survived during the Precambrian-Cambrian transitional interval. The result indicates L. dissolutum is a kind of maroalgae which has wide ecological tolerance and relatively high degree of inherent genetic stability.