New Fossil Scans Rewrite Insect Flight Timeline, Suggesting Origins 80 Million Years Later

A century-old fossil has upended long-held beliefs about the evolution of insect flight, according to new research. Advanced scanning of the tiny specimen, originally unearthed in 1924, indicates that flying insects may have emerged up to 80 million years later than previously thought. The findings challenge the established timeline, which placed the origin of winged insects in the Devonian period, and instead point to a later appearance during the Carboniferous. This shift has significant implications for understanding the co-evolution of early terrestrial ecosystems and the rise of insect diversity. Researchers emphasize that the fossil, long considered a primitive winged insect, actually shows features of a more primitive, wingless relative. The study underscores the importance of revisiting historical specimens with modern technology, as new insights can reshape evolutionary narratives. Moving forward, scientists plan to re-examine other early insect fossils to confirm the revised timeline and explore the environmental factors that may have delayed the evolution of flight.