黄麦岭磷矿的8个中元古代黄麦岭组变质岩地层剖面中发现了两类微体化石。一类是丁丁虫中的Funnelasinensisgen.etsp.nov.,另一类是球形分类位置未定的Sinosphaera hubeiensisgen.etsp.nov.。两者均为多细胞化石,它们都含磷。在该磷矿中,凡是含微体化石越多的层位,磷矿的品位也就越高。

Two kinds of microfossils have been discovered from metamorphic rocks of eight stratigraphic sections, i.e. the Huangmailing Formation of Hongan Group of Middle Proterozoic at the Huangmailing Phosphoric Ore, Central China. One is a new genus and species of tintinnids, Funnela sinensis gen. et sp. nov., and the other is a new genus and species of microfossils Incertae sedis, Sinosphaera hubeiensis gen. et sp. nov. Both are multicellular fossils and contain phosphorus. In the beds of Phosphoric Ore, the more the microfossils, the high the grade of phosphorus.

Q913.2 P534.3