Australia fossil discovery reveals early complex life

Researchers have discovered a fossil in Australia that may rewrite the history of life on Earth. Found in Nilpena Ediacara National Park, the specimen, named ‘Quaestio simpsonorum’, dates back approximately 575 million years to the Ediacaran period.

The creature was a flat, disc-shaped organism slightly smaller than a human hand, featuring a unique question-mark-shaped structure on its body. Most significantly, the fossil exhibits clear bilateral symmetry, a trait associated with movement and specialized body functions in modern animals.

Geologist Scott Evans from Florida State University noted that no other fossil from this period shows such distinct organization. Additionally, traces found in layers of algae and bacteria suggest the organism was capable of independent movement, marking it as one of the earliest mobile animals. This discovery provides critical insight into when the fundamental characteristics of complex animal life first emerged, prior to the Cambrian explosion.