nummulite / ˈnʌm yəˌlaɪt /

📖毕业后词汇木棉花木鱼石木棉石木棉岩

nummulite 的定义

n. 名词 noun
  1. a fossil foraminifer of the genus Camerina, having a calcareous, usually disklike shell.

更多nummulite例句

  1. The nummulite limestone was undoubtedly oceanic, and the other shells contained in it are marine species.
  2. The Eocene includes a series of sandstones and marls with lignite, and these are overlaid by nummulite limestones.
  3. The beds are also sometimes named Nummulite limestone, Miliolite limestone, and Cerithium limestone.
  4. In a stratum just above these are numbers of a large Nummulite (Nummulites lævigatus).
  5. The tertiary nummulite limestone, so abundant in Egypt, has not hitherto been met with in Nubia.