摘要
陇川盆地新第三纪地层主要由细粒碎屑岩组成,富含孢粉化石。按其成分及数量,可划分为二个组合。下面的为单缝孢—被子植物花粉组合,单缝孢子占优势,被子植物和裸子植物的花粉也不少,时代为上新世早-中期;上面的为松科花粉组合,松科花粉十分丰富,孢子也不少,被子植物种类多,时代为上新世晚期。本文描述了1个新属(Acanthipollis),3个新种。
The Neogene strata in Longchuan basin consist mainly of the fine grai-ned clastic rocks containing abundant sporopollen fossils. These fossils can be divided according to their composition and quantity into two assemblages: the assemblage of spore in situ-angiosperous pollens in the lower part which, in order of quantity, is composed of the spore in situ, angiospermous and gym-nospermous pollens and belongs to the early-middle period of Pliocene in age; the pinus family pollen assemblaga in the upper part which is characterized by containing very rich pinus family pollens and a number of spores and many kinds of angiosperm, it belongs to the late period of Pliocene in age. One new genus (Acanthipollis) and three new species are described in this paper.
出处
《云南地质》
1992年第4期336-347,共12页
Yunnan Geology
