Dickinsonia is an ancient organism that lived during the late Ediacaran period, around 560 million years ago. It is one of the earliest known multicellular life forms and is characterized by its oval, flattened body with a ribbed or segmented appearance. Fossils of Dickinsonia have been found in various locations, including Australia and Russia, providing valuable insights into early life on Earth. Scientists are still debating the exact classification of Dickinsonia, with some suggesting it may be related to animals, while others propose it could be an early form of fungi or plants. Its unique structure and age make it a key subject of study in understanding the evolution of life.