A team of British palaeontologists has uncovered a fossilised whale graveyard in the Atacama Desert of Chile, dating back five million years. The site, which contains at least 20 skeletons of extinct whale species, is being hailed as one of the most significant marine mammal fossil finds in history.
The excavation, led by Dr. Emily Hartley of the Natural History Museum in London, was conducted over three months in the Cerro Ballena region, a known fossil hotspot. The skeletons were found in pristine condition, preserved in sedimentary rock that once formed part of a shallow coastal lagoon.
Initial analysis suggests the whales died in four separate mass stranding events, likely triggered by toxic algal blooms or sudden changes in sea level. The fossils belong to several species, including rorquals and sperm whales, some of which were previously unknown to science.
“This discovery offers an unprecedented snapshot of marine life in the Pliocene epoch,” Dr. Hartley said. “The sheer number of individuals and their state of preservation will allow us to study ancient ecosystems and whale behaviour in extraordinary detail.”
The British team collaborated with geologists from the University of Chile and the Smithsonian Institution. Funding was provided by the Leverhulme Trust and the Royal Society.
The site has been designated a UNESCO World Heritage candidate, and the Chilean government has pledged to protect it from mining interests. The fossils are being carefully extracted and transported to Santiago for further study, with plaster casts of some specimens to remain on public display in Chile.
The discovery has been compared to the famed La Brea Tar Pits in Los Angeles, but in terms of whale fossils, it is considered even more significant. The nearest comparable find is the Wadi al-Hitan whale valley in Egypt, which dates to 40 million years ago.
Dr. Hartley’s team plans to return next year to excavate further, as ground-penetrating radar suggests additional skeletons remain buried. The findings will be published in the journal PeerJ later this year.
