sentence: Microfossils can provide important information about the ecology in the past.
sentences_before: Microfossils are fossils generally not larger than four millimeters, and commonly smaller than one millimeter. A microscope is used to study them. Every kingdom of organisms is represented in the microfossil record.
concept_name: microfossil
headings: Micropaleontology
categories: Fossils Paleontology