Which Period Would Hold the Record of the Oldest Fossils

question 59

Multiple Choice

Which period would hold the record of the oldest fossils of multicellular animals, found in mountainous areas of South Australia, and parts of Canada and China?

• A) Edicarian
• B) Devonian
• C) Cambrian
• D) Cretaceous
• E) Ordovician

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Definitions:

Geologic Timescale

A method of dating based on the chronological correlation of Earth's geological layers to time, utilized by geologists for depicting the sequence and association of historical events on Earth.

Seafloor Spreading

The process by which new oceanic crust is formed at mid-ocean ridges and slowly moves away from them.

Isotopic Ages

The determination of the age of rocks, minerals, or samples by measuring the relative abundance of specific isotopes.

Correlations

In geology, the establishment of equivalency between geological features or layers at different locations based on their characteristics and age.