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From oldest to youngest, what are the three time periods of the Mesozoic?

How can mammal and reptile fossils be differentiated?

The Tiktaalik roseae fossil is important because it likely captured:

According to the rock cycle:

Charles D. Walcott was the creator of the world’s first geologic map.

The mass extinction at the end of the Cretaceous coincides with an iridium anomaly in the stratigraphic record, suggesting:

When ancient oceanic crust composed of mafic-ultramafic complexes are tectonically emplaced onto the continents, it is called an ____.

As Gondwana moved over the South Pole during the Carboniferous, the climatic conditions could be described as:

Early Earth had a uniform composition, with no differentiated layers.

The stable nucleus of a continent consisting of a Precambrian basement rocks and low-lying flat areas is called a(n):