Explore the fascinating world of biogenic rocks in this 18-minute video lecture. Delve into the formation and classification of sedimentary rocks derived from skeletal materials of living organisms, with a focus on carbonate rocks and limestone. Learn how these unique geological formations come into existence and gain insights into their diverse classifications. Discover the connection between biology and geology as you uncover the secrets of rocks made from once-living creatures. Part of a comprehensive geology playlist, this video offers an in-depth look at an intriguing subset of sedimentary rocks, building upon previous discussions of siliciclastic rocks.