Dating rocks and fossils and geologic events
Choose: No Frames Layout Choose: Human Evolution Frames .
I have integrated this web page on human evolution into an electronic text, " Nature's Holism - Holism.
The Great Permian Extinction marks the end of the Paleozoic and the start of the Mesozoic.
Trilobites are one of the few major groups of organisms that span the majority of the Paleozoic Era.
The term can also be applied to larger groups of organisms, as in "the adaptive radiation of mammals." adaptive strategies: A mode of coping with competition or environmental conditions on an evolutionary time scale.