What flowering plants dominated the land ecosystems during the Late Cretaceous?
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During the Cambrian, most of the Earth’s land was located in…
During the Cambrian, most of the Earth’s land was located in the Southern Hemisphere.
During the Mesozoic, sea levels were higher than present day…
During the Mesozoic, sea levels were higher than present day.
Glacial environments are an example of a transitional deposi…
Glacial environments are an example of a transitional depositional environment.
None of the reptiles from the Cretaceous period survived the…
None of the reptiles from the Cretaceous period survived the end-Cretaceous mass extinction.
Birds evolved during the Jurassic.
Birds evolved during the Jurassic.
Dinosaurs are examples of ____.
Dinosaurs are examples of ____.
Of the three rock types, igneous rocks are the best suited f…
Of the three rock types, igneous rocks are the best suited for radiometric dating techniques.
Which animal below is a mammal?
Which animal below is a mammal?
The Ornithiscian dinosaurs are known as the lizard-hipped di…
The Ornithiscian dinosaurs are known as the lizard-hipped dinosaurs.