Paleontologists now know that the Precambrian actually did swarm with ... to the ocean and becomes sedimentary rock. And even those rocks, made partly from carbon that has cycled through life's ...

Precambrian time covers the vast bulk of the Earth's history, starting with the planet's creation about 4.5 billion years ago and ending with the emergence of complex, multicelled life-forms ...

More extensive Precambrian finds, particularly those discovered in Australia's Ediacara Gorge in rocks 565 million years old, include fossil imprints of creatures that resemble everything from ...

His research focuses on the geological reconstruction of Precambrian terranes. "We look at the structure of the rocks to find out how continents came together to form the supercontinent Gondwana ...

Situated within the Rocky Mountains, our Department provides students with diverse opportunities for field studies. For example, the widespread Precambrian rocks and complexity of local structural ...