There have been divergent opinions on whether Conophyllia develops synapticulae and dissepiments since its erection in 1849, with different views existing on the morphology of columella in Conophyllia.This paper prese...There have been divergent opinions on whether Conophyllia develops synapticulae and dissepiments since its erection in 1849, with different views existing on the morphology of columella in Conophyllia.This paper presents a comprehensive review of Conophyllia, and revises the diagnosis according to new material from the Renacuo area of Gêrzê, Tibet.The revised diagnosis emphasises the following features： solitary coral; abundant radial elements subequal in thickness, lateral faces with granules and synapticulae; parietal, papillar or incompact columella, a few species lacking in columella; developed dissepiments.Individuals of Conophyllia have laminar septa of Triadophyllum type in earlier ontogenetic stages, while their septa in later ontogenetic stages are more fenestrate.The geological and geographical distribution of this genus is discussed, with five species of Conophylliafrom the Renacuo area of Gêrzê, Tibet being described and illustrated, including one new species and two in open nomenclatue.展开更多
西藏改则热那错地区位于南羌塘盆地南缘，在该区发育了一套厚度较大的碳酸盐岩沉积。对该区碳酸盐岩 C、O稳定同位素的研究，可以恢复其形成的古环境及沉积特征。在野外剖面测制（1∶2000）、样品系统采集的基础上，对其碳酸盐岩进行 C...西藏改则热那错地区位于南羌塘盆地南缘，在该区发育了一套厚度较大的碳酸盐岩沉积。对该区碳酸盐岩 C、O稳定同位素的研究，可以恢复其形成的古环境及沉积特征。在野外剖面测制（1∶2000）、样品系统采集的基础上，对其碳酸盐岩进行 C、O 同位素的测试及分析，结果表明：西藏改则热那错地区古海水盐度 Z 值为126.32～135.37，属正常海水-超咸水；古海水温度平均值为22.4℃，代表温暖的气候环境；δ18 O、δ13 C 值均随海平面的变化而变化，海水越深，δ18 O 值越大。根据 C、O 同位素计算出的古温度、古盐度与所划分的沉积相带是相互对应的。展开更多
基金supported by the Project "Tectonic attributes of the South Qiangtang Mesozoic-Cenozoic basin, based on deformation and metamorphic character" (Project number is: 1212011121271)the Project "1:50,000 Geological Survey of Four Regions in Renacuo Area" (Project number is: 1212011121244)
文摘There have been divergent opinions on whether Conophyllia develops synapticulae and dissepiments since its erection in 1849, with different views existing on the morphology of columella in Conophyllia.This paper presents a comprehensive review of Conophyllia, and revises the diagnosis according to new material from the Renacuo area of Gêrzê, Tibet.The revised diagnosis emphasises the following features： solitary coral; abundant radial elements subequal in thickness, lateral faces with granules and synapticulae; parietal, papillar or incompact columella, a few species lacking in columella; developed dissepiments.Individuals of Conophyllia have laminar septa of Triadophyllum type in earlier ontogenetic stages, while their septa in later ontogenetic stages are more fenestrate.The geological and geographical distribution of this genus is discussed, with five species of Conophylliafrom the Renacuo area of Gêrzê, Tibet being described and illustrated, including one new species and two in open nomenclatue.
文摘西藏改则热那错地区位于南羌塘盆地南缘，在该区发育了一套厚度较大的碳酸盐岩沉积。对该区碳酸盐岩 C、O稳定同位素的研究，可以恢复其形成的古环境及沉积特征。在野外剖面测制（1∶2000）、样品系统采集的基础上，对其碳酸盐岩进行 C、O 同位素的测试及分析，结果表明：西藏改则热那错地区古海水盐度 Z 值为126.32～135.37，属正常海水-超咸水；古海水温度平均值为22.4℃，代表温暖的气候环境；δ18 O、δ13 C 值均随海平面的变化而变化，海水越深，δ18 O 值越大。根据 C、O 同位素计算出的古温度、古盐度与所划分的沉积相带是相互对应的。
