Discovery of fossil “voice box” of Antarctic bird suggests dinosaurs couldn't sing.

A team led by the University of Texas discovered an ancient vocal organ in a bird-related species from the age of dinosaurs. This organ, called a syrinx, was absent in non-bird dinosaur fossils, suggesting it evolved after the origin of flight. The discovery was made in a fossil species named Vegavis iae, found in Antarctica. The research provides insights into the evolution of bird calls and suggests dinosaurs may have made sounds similar to ostrich booms. The fossil was discovered in 1992 and analyzed in 2013, offering clues to the origins of birdsong.

What type of sounds did dinosaurs likely make according to the research?

When was the fossil of Vegavis discovered and by whom?