Examlex
In 2017, immigrants made up a larger portion of the labor force in the U.S. than in Australia.
Index Fossils
Fossils of organisms that were geographically widespread but limited to a short span of geological time, used to define and identify geological periods.
Fossil Species
The remains or imprints of organisms from earlier geological periods preserved in rock.
Geologic Timescale
A chronological dating system that relates geological strata to time, used by geologists to describe the timing and relationships between events that have occurred throughout Earth's history.
Fossil Data
Information derived from fossils that helps in understanding the past, including the history of life and ancient environments.
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