Index fossil
01
标准化石, 指标化石
a fossilized organism that is useful for dating and correlating the strata in which it is found, typically indicative of a particular time period in Earth's geological history
语法信息
有生性状态
无生命
形态构成
复合词
可数
复数形式
index fossils
例子
Geologists rely on index fossils to determine the relative age of sedimentary rock formations.
地质学家依靠指标化石来确定沉积岩层的相对年龄。
