graptolites

[US]/'ɡræptəlait/
[UK]/ˈɡræptəˌlaɪt/
Frequency: Very High

Translation

n. 笔石 古无脊椎动物,现存化石。

Example Sentences

From 2003 to 2004, we collected a large amount of Nautiloid and Graptolite fossils in upper metamorphic formations of Mayigangri area and determined the age to be middle and Late Ordovician-Silurian.

在羌塘南部地区发现有可靠化石依据的早古生代地层存在尚属首次。

Popular Words

Explore frequently searched vocabulary

Download App to Unlock Full Content

Want to learn vocabulary more efficiently? Download the DictoGo app and enjoy more vocabulary memorization and review features!

Download DictoGo Now