Miller Museum Online Exhibit Our newest permanent exhibit and the first online exhibit from the Miller Museum of Geology, Queen's University, Kingston, Ontario, Canada Special thanks to the Canadian Geological Foundation for helping to make this exhibit possible at the Miller Museum Selected by November 1998 While most people know of the dinosaurs from a mere 70 million years ago, very few are ...

Introduction to the Archaean 3.8 to 2.5 billion years ago If you were able to travel back to visit the Earth during the Archaean, you would likely not recognize it is the same planet we inhabit today. The atmosphere was very different from what we breathe today; at that time, it was likely a reducing atmosphere of methane, ammonia, and other gases which would be toxic to most life on our planet ...

Introduction to the Proterozoic Era 2.5 billion to 544 million years ago The period of Earth's history that began 2.5 billion years ago and ended 544 million years ago is known as the Proterozoic. Many of the most exciting events in the history of the Earth and of life occurred during the Proterozoic -- stable continents first appeared and began to accrete, a long process taking about a billion ...

Hadean time: 4.5 to 3.8 billion years ago Hadean time is not a geological period as such. No rocks on the Earth are this old - except for meteorites. During Hadean time, the Solar System was forming, probably within a large cloud of gas and dust around the sun, called an accretion disc. The relative abundance of heavier elements in the Solar System suggests that this gas and dust was derived ...

BioForum 2d--A talk by J. Lipps about The Radiation of the First Animals ...

The Precambrian Eon The name means: before the Cambrian period. This old, but still common term was originally used to refer to the whole period of Earth's history before the formation of the oldest rocks with recognizable fossils in them. In the last few decades, however, geologists have found that there are some hard-to-discern fossils in some Precambrian rocks, so this period also is now ...