The trombone of the Cretaceous. Its 1.8-meter hollow crest was a resonating chamber — scientists have reconstructed the sound, a deep haunting foghorn that could carry for kilometers across the floodplains to the rest of the herd.
Length9.5 m
Height3 m
Weight2,600 kg
Top speed40 km/h
Field notes
- Scientists have 3D-printed its crest and played its actual call.
- Each individual's crest produced a slightly different tone.
- It could walk on two legs or four as it pleased.