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- At the end of the Permian period 225m years ago, between 80 % and 96 % of all living marine species were extinguished. 2.;25亿年前的二叠纪末期，当时80%25到96%25的海洋物种灭绝；
- Any of various large, segmented aquatic arthropods of the order Eurypterida that existed from the Ordovician Period to the Permian Period. （古生）板足鲎目的一种巨大的、有节的，属于板足鲎目的水生节肢动物，生存于奥陶纪到二叠纪时期
- At the end of the Permian period the earth's landmasses were configured into one supercontinent, Pangea, and a superocean, Panthalassa. 二叠纪末期，地球上的陆地合并成一块超级大洲，叫作盘古大陆，以及一个超级大海，叫作原始大洋。
- Ore deposits which have economical value mainly are depositional type and volcanegenic type produced in the permian period and tertiary period. 具经济价值的主要为产于二叠纪及第三纪沉积类及火山沉积类矿床。
- The hydrothermal fluid and the spaces of ore-bodies in the deposit are provided by the granite magmas and the Permian period. 指出印支期白岗质花岗岩岩浆提供部分成矿物质,二叠系地层和花岗岩浸位提供热源和导矿、容矿空间。
- In the Permian Period, 286 million years ago, the most striking transitions in the evolution of life occurred when mammals evolved from one lineage of reptiles. 在二叠纪期间,286百万年前,最醒目的转折在生活的演变发生了当哺乳动物演变了从爬行动物一后裔。
- ZHU Tongxing, HUANG Zhiying , HUI Lan. The Geology of Late Permian Period Biohermal Facies in Upper Yangtze Tableland[M]. Beijing: Geological Publishing House, 1999(in Chinese). 朱同兴;黄志英;惠兰.;上扬子台地晚二叠世生物礁相地质[M]
- The Permian period saw the creation of the supercontinent Pangaea, where shallow seas in and around the huge landmass offered a home to an abundance of life. 二叠纪期间，看到创造了超盘古大陆，其中浅海和周围的巨大的地块提供了回家了丰富的生活。
- This breaks through the t raditional idea and is helpful for understanding paleogeographic features and tectonic evolution of Lower Yangtze Plate in Permian period. 这一认识不仅突破了传统观念 ,而且有助于重新认识下扬子板块二叠纪的古地理特征和盆地构造演化。
- Of, belonging to, or being the geologic time, system of rocks, and sedimentary deposits of the first period of the Mesozoic Era, after the Permian Period of the Paleozoic Era and before the Jurassic Period of the Mesozoic Era. 三叠纪的，三叠系的，三叠纪岩石的属于或关于中生代的第一个时期的，这个时期岩石系的和沉积矿床的，在古生代的二叠纪元后，中生代的侏罗纪之前
- The basement of the basin is likely to go through such processes before Permian period: the diving of ocean,the hyperplasia of island arc,then the collision of continents,and it is an active island arc belt. 盆地前二叠纪基底可能经历了洋盆俯冲、岛弧增生、陆块碰撞的造山作用过程，基底属于活化基底岛弧带。
- In early Permian period,the epicontinental sea of North China Platform receded conti-nously to the south,thus the-coal accumulations of continental delta facies are generated inthe southeast of North China Platform. 二叠纪早期，华北地台的陆表海不断向南退缩，从而在华北地台东南部开始了陆相三角洲的聚煤作用。
- Late Permian period Wu Jia Ping magnesium limestone reef in the Western European Commission, represented the basin reefs, these types of simple reef, or from stromatolites bryozoans composition. 晚二叠世吴家坪期的礁以西欧镁灰岩统盆地的礁为代表，这些礁的类型简单，由叠层石或苔藓虫组成。
- The Palaeozoic has been broken down into six smaller units of geological time called periods. Cambrian is the oldest period of the Palaeozoic followed successively by Ordovician, Silurian, Devonian, Carboniferous and Permian Periods. 古生代可划分成6个小的叫做纪的时间单位，寒武纪是古生代中最老的一个纪，然后依次为奥陶纪、志留纪、泥盆纪、石炭纪和二叠纪。
- late Carboniferous and early Permian period 晚石炭-早二叠世
- That period was a bright page in the history of Chinese literature. 那个时期是中国文学史上光辉的一页。
- Let us hope that the period of this injustice will be over soon. 让我们希望这个不公正的时期很快结束吧。
- Childhood is a period of rapid growth. 幼年是生长迅速的时期。
- He consulted the chronicles of the period. 他参考了这一时期的编年史。
- River souring in the early Permian period of Weibei coalfield 渭北煤田早二迭世河流冲刷作用
