【摘要】 本文描述的四射珊瑚采自云南省西部施甸地区中泥盆世马鹿塘组及何元寨组。描述了马鹿塘组珊瑚5属5种,2个未定种,并建立1个珊瑚组合:Metrionaxon yunnanense-Neaxon inopinata组合,包括Metrionaxon yunnanense sp.nov.,M.sinense sp.nov.,Neason inopinata(Prantl),Neaxon sp.,Metriophyllum gracile Schluter,Barrandeophyllum?sp.,Amplexocarinia yunnanensisn sp.nov.等。该组合的时代为中泥盆世早期(Eife lian)。描述了何元寨组1属,1个亚种:Peripaedium planum planumBirenheide.本组时代为中泥盆世晚期。这一珊瑚动物群与我国华南区珊瑚动物群截然不同,而与欧洲珊瑚动物群非常相似。更多还原

【Abstract】 The rugose coral fossils under study were collected from the Middle DevonianMalutang and Heyuanzhai Formations in Shidian, western Yunnan. They consist of 6genera and 5 species (including 3 new species) and 2 indeterminate species and 1subspecies. In the Malutang Formation may be erected a rugose coral assemblage:the Metrionaxon yunnanense--Neaxon inopinata assemblage, which is composed ofMetrionaxon yunnanense sp. nov., Metrionaxon sinense sp. nov., Neaxon inopinata(Prantl), Neaxon sp., Metriophyllum gracile Schluter, Amplexocarinia yunnanensis sp.nov. and Barrandeophyllum?sp. The age of this coral assemblage is assigned toEifelian. The coral fossils of the assemblage are solitary, small, conical in shape, dissepi-ments being absent, with aulos structure. They do not occur in association withcompound rugose corals. This coral fauna may live in the deep and quiet sea water.It differs from that of South China, but closely resembles that of Europe. Besides, Peripaedium planum planum Birenheide is also described, which occursin the Heyuanzhai Formation of the late Middle Devonian in Shidian.更多还原