摘要
本文研究的蜒类计有17属91种,包括1未定种。根据蜒类动物群的垂直分布情况,两淮煤田上石炭统太原组可建立Sphaeroschwagerina带,并自下而上进一步细分为2亚带:(1).Quasifusulina gracilis-Boultonia willsi亚带;(2).Sphaeroschwea-gerina subrotunda亚带。必须指出,山西太原组的Triticites simplex带在两淮地区未见到,两淮煤田太原组可能只相当于庙沟石灰岩至东大窑石灰岩的层位,其时代应属晚石炭世中。
Fusulinids studied in this paper are of 91 species in 17 genera, including 1 unnamed species. According to the vertical distribution of fusulinid faunas, it is possible to verify the existence of a Sphaeroschwagerina zone in the late Carboniferous Taiyuan Formation in Huainan-Huaibei Coalfield, a zone which can be further grouped into two subzones:
( 1 ) Quasifusulina gracilis-Boultonia willsi subzone,
( 2 ) Sphaeroschwagerina subrotunda subzone.
It should be pointed out that Triticites simplex zone of the Taiyuan Formation in Shanxi has not been found in Huainan-Huaibei area, for it is most probably equivalent to the horizon ranging from Miaogou limestone to Dongdayao limestone, with an age between middle and late Late Carboniferous
关键词
煤田
太原组
蜓类
煤系地层
upper caiboniferousi fusulinida, fauna
