vasiform

常見例句

It fills the blanks in the study on the vasiform mic- rofossils in Dengying Formation, Sinian System, and sheds a light on the re- search of the formation and evolution of Late Precambrian to earliest Camb- rian shelly animals.
它的發(fā)現(xiàn)是繼湖北房縣下寒武統(tǒng)西蒿坪組和峽東地區(qū)震旦系陡山沱組發(fā)現(xiàn)瓶狀微化石之後的又一新産地和層位,填補(bǔ)了震且紀(jì)燈影期該類化石的空白,對探討由晚前寒武紀(jì)束期至早寒武世早期的帶殼生物的發(fā)生和縯化具有重要意義。
vasiform orifice
瓶形孔