Forgotten conch shell found to be 18,000-year-old wind instrument

  • Hear the sound of the instrument played

A large conch shell, estimated to be around 18,000-years-old, has been found to be the oldest known wind instrument of its kind.

The discovery comes after the shell lay forgotten in a French museum for over 80 years.

The shell was found during the 1931 excavation of a cave with prehistoric wall paintings in the French Pyrenees. Back then, it was assumed to be a ceremonial drinking cup.



Archaeologists from the University of Toulouse recently took a fresh look and determined it had been modified thousands of years ago to serve as a wind instrument. They invited a French horn player to play it.

“Hearing it for the first time, for me it was a big emotion - and a big stress,” said archaeologist Carole Fritz.

She feared the 31cm shell might break when played but it remained intact. The horn produced clear C, C sharp and D notes.

The discovery was made after a inventory at the Natural History Museum of Toulouse. On Wednesday, findings of research into the shell were published on Wednesday in the journal Science Advances.

Conch shells have been used widely in musical and ceremonial traditions, including in ancient Greece, Japan, India and Peru. The shell instrument found in the Marsoulas cave is now the oldest known example.

Previously, a conch shell instrument found in Syria had been dated to about 6,000 years old, said another Toulouse archaeologist, Gilles Tosello.

The researchers noticed some unusual holes in the most recent finding. Crucially, the tip of the shell was broken off, creating a hole large enough to blow through. Microscopic inspection revealed the opening was the result of deliberate craftsmanship, not accidental wear, according to Tosello.

By inserting a tiny medical camera, they found that another hole had been carefully drilled in the shell’s inner chamber. They also detected traces of red pigment on the mouth of the conch, matching a decorative pattern found on the wall of Marsoulas cave.

A prehistoric wall painting depicting a bison, in a French cave where the conch shell was discovered. Credit: AP

“This is classic, really solid archaeology,” said Margaret Conkey, an archaeologist at the University of California, Berkeley, who was not involved in the research.

“This discovery reminds us that their lives were much richer and more complex than just stone tools and big game.”

Marsoulas cave is not located near an ocean, so the prehistoric people must have either moved around widely or used trading networks to obtain the shell, Conkey and the researchers said.

“What makes conch shells so interesting is that the spiral cavity formed by nature is perfectly adept at resonating musically,” said Rasoul Morteza, a composer in Montreal who has studied conch shell acoustics, and was not involved in the paper.

Using a 3D replica, the archaeologists plan to continue studying the horn’s range of notes. Tosello said he hopes to hear the ancient instrument played inside the cave where it was found.

“It’s amazing when there’s an object forgotten somewhere, and suddenly it comes again into the light,” he said.