BIOLOGY 171 Lecture Notes - Lecture 15: Phanerozoic, Cambrian Explosion, Radioactive Decay
Document Summary
Bio 171 lecture 15: fossil record, history of life, and human evolution. Vocabulary (you should be able to define and use all of these terms correctly. ) Based on the reading and lecture material from this lecture, you should be able to: Proterozoic eon: explain how fossils form and the limitations of the fossil record, explain how paleontologists and geologists can estimate dates of important events in. Earth"s geological history using radio-active decay of different isotopes (such as 14c and. Fossils are physical evidence left by organisms that once lived on earth, but are now extinct. Read all of chapter 23. 3 and 23. 4 to learn more about fossils and how they are used in conjunction with phylogenies. The fossil record includes all the fossils that have been found and recorded. Most form when an organism is quickly buried in sediments before decomposition occurs. You do not need to know the specifics of the different types of fossils for this class.
