BIO211H5 Lecture Notes - Filter Feeder, Paleozoic, Anomalocaris
Document Summary
Today is october 18th, which means that including today, we have four lectures. That is what will be on the exams and the relevant chapters of the book. We are now going to take a joyride through history. We will talk about the major events, the major extinctions, the major geologic events, the major biologic events, all the way up to today. We ll start in the palaeozoic era of what is called the phanerozoic. In the next couple weeks, we ll talk about the palaeozoic. The palaeozoic runs from 543 million years ago to 245 million years ago and includes a series of periods. Today, we ll talk about the cambrian period which went from 543-490 million years ago, followed by the ordovician, the silurian, and the devonian. The cambrian is the interval where we have the initial diversification of all the groups of animals that are alive today. Remember, earth is a recycling and dynamic planet.
