microfossils

Microfossils are tiny remnants of ancient organisms, often less than a millimeter in size, that have been preserved in sedimentary rocks. These can include the remains of tiny plants, animals, or microorganisms like foraminifera, diatoms, and pollen. Scientists study microfossils to understand Earth's history, including past climates, ecosystems, and the evolution of life. Because they are abundant and can be found in many geological layers, microfossils provide critical insights into the age of rock formations and the environmental changes that have occurred over millions of years.