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| 1 | 中国辽宁北票羊草沟晚三叠世苔类的新发现显示文摘首次报道了辽宁北票羊草沟盆地上三叠统羊草沟组可疑的苔类。由于缺少表皮构造特征,将这些似叶状体状植物归入与苔类和藻类亲缘性关系还不清楚的形态属Thallites,并建立了一个新种,羊草沟似叶状体(新种)(Thallites yangcaogouensis sp. nov.)。植物体近圆形,似叶状体厚,边缘全缘,规则二岐分叉3次,前2次分叉较深,最后1次分叉较浅,形成三角形裂片,顶端钝尖;中肋自似叶状体基部伸出,呈明显脊状,伸达似叶状体顶端。当前新种表面保存有不规则的小凸起和毛发状物,推测是似叶状体腹面鳞片和假根的印痕,与苔纲地钱目特征相似。根据现生苔类的生态学和羊草沟植物群组成特征分析,推测新种可能生长在温暖潮湿气候条件下的湖泊、河流附近的潮湿土壤或岩石表面。这个类群的发现为了解辽西地区晚三叠世古地理、古环境提供了新证据。 | 王军有 李涛 刘治平 郭斌 康艾 那玉玲 李云峰 薄俊晨 孙春林 | 2019 | 世界地质2019，38，1： | 1 |
| 2 | A new member of Sphenopsida,Neolobatannularia gen. nov. from Late Triassic of western Liaoning,China显示文摘A new genus Neolobatannularia Sun et Li gen. nov. with the type species Neolobatannularia liaoningensis Sun et Li sp. nov. from the Upper Triassic Yangcaogou Formation of Beipiao, Liaoning, China, is described in this paper. The new taxon is attributed to Equisetales of Sphenopsida based on its branch with internodes, node and leaves borne in whorls on nodes. It is a new member of the Mesozoic Sphenopsida. Although the new taxon shares some morphological characters with the genus Lobatannularia Kawasaki, a genus widely distributed in the Permian Cathaysia flora in East Asia, and the genus Lobatannulariopsis Yang from the Late Triassic of southwestern China, its unique branching pattern is markedly distinguished from the two known genera. Some Triassic known species of Lobatannularia may belong to the present new genus Neolobatannularia. | WANG Junyou LI Tao LIU Zhiping GUO Bin KANG Ai NA Yuling LI Yunfeng WANG Hongshan BO Junchen SUN Chunlin | 2019 | Global Geology2019，22，1： | 0 |
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