河南淅川早石炭世地层及皱纹珊瑚

河南淅川位于秦岭东端南坡,早石炭世地层发育完好,为一套正常浅海碳酸盐沉积,厚度大于1000m。下石炭统下部和上部分别称为下集组和梁询组。下石炭统含有丰富的珊瑚化石,层位集中于梁沟组的上部,其珊瑚动物群性质基本上与华南地区一致,属于同一珊瑚动物区系。 本文共描述皱纹珊瑚8属9种,其中新种8个,异珊瑚1属1未定种。

EARLY CARBONIFEROUS STRATA AND RUGOSA FROM XICHUAN,IN HENAN PROVINCE

The Xichuan area is situated in the southern slope of Er.stem Qinling Mts, where the Early Carboniferous strata were well developed, consisting of a set of normal shallow marine carbonate deposits up to a thickness over 1000m. The lower and upper parts of Lower Carboniferous in the area ere named the Xiaji Fm. and the Lianggou I'm.respectively .The former is chiefly dolomitic limestones, and the latter is composed mainly of limestones, dolomitic limestones with intercalated cherts. The Lower Carboniferous contains abundant coral fossils that mainly appear in the upper position of the Lianggou Fm. .The coral fauna are generally similar to those of the South China.Both belong to the same coral province.This paper describes 8 genera and 9 species of Rugosa, among which 8 species are new find 1 species of Heteraphyllia is undetermined.