韩国三级视频-日韩操-视频一二区-久草欧美-五月天婷婷丁香花-动漫美女靠逼-韩国一区二区三区视频-美女扒开内裤让男人桶-亚洲AV无码精品一区二区三区-无码内射中文字幕岛国片-亚洲成色网

World's earliest fossil flower unearthed in E China's Nanjing

Source: Xinhua| 2018-12-19 07:21:47|Editor: Yang Yi
Video PlayerClose
?

CHINA-NANJING-WORLD'S EARLIEST FOSSIL FLOWERS-RESEARCH ACHIEVEMENTS RELEASE (CN)

A researcher shows the flower fossils at Nanjing Institute of Geology and Palaeontology in Nanjing, east China's Jiangsu Province, Dec. 18, 2018. Scientists have found new evidence of the world's earliest fossil flower from specimens unearthed in the eastern China city of Nanjing, dating the origin of flowering plants to 174 million years ago, or the Early Jurassic. An international research team led by scientists from the Nanjing Institute of Geology and Palaeontology has made an observation of the specimens, which contain 198 individual flowers preserved on 34 slabs. They named the flower, which has four to five petals and looks like modern plum blossom, Nanjinganthus. The research pushed the origin of flowering plants 50 million years earlier than the record of previously available fossils, which suggested flowering plants appeared about 125 million years ago in the Cretaceous, an era during which many insects such as bees appeared. The Early Jurassic is known as the period that saw dinosaurs dominating the planet. The discovery reshapes the current understanding of the evolution of flowers. (Xinhua/Sun Can)

   1 2 3 4 5 6 7 8 9 Next  

KEY WORDS: fossil flower
EXPLORE XINHUANET
010020070750000000000000011100001376834001
主站蜘蛛池模板: 新干县| 兴山县| 秦安县| 新龙县| 安泽县| 神池县| 华阴市| 嘉定区| 扶沟县| 蓝田县| 广河县| 武冈市| 崇文区| 抚州市| 常州市| 务川| 临洮县| 邢台市| 黔江区| 吴桥县| 盐山县| 扶绥县| 和硕县| 格尔木市| 丹巴县| 威信县| 开鲁县| 阿拉尔市| 诏安县| 天柱县| 广河县| 班玛县| 开江县| 曲水县| 华坪县| 鸡泽县| 行唐县| 苍南县| 永安市| 兴海县| 弥渡县|