Marvelous Microfossils:: Creators, Timekeepers, ArchitectsMicrofossils the most abundant, ancient, and easily accessible of Earths fossilsare also the most important. Their ubiquity is such that every person on the planet touches or uses them every single day, and yet few of us even realize they exist. Despite being the sole witnesses of 3 billion years of evolutionary history, these diminutive fungi, plants, and animals are themselves invisible to the eye. In this microscopic bestiary, prominent geologist,