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Forgotten fossil turns out to be Antarctica's first dinosaur bone

BBC Published Jun 29, 2026 Reviewed Jul 2, 2026 ✓ Reviewed by citations.press editors
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Titanosaurs include the largest dinosaurs to ever walk the Earth.
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The fossil's discovery was recorded in a field notebook dated 9 December 1985 by Dr Mike Thomson, who described it as a 'vertebra of large reptile' about 10cm wide.
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A fossil stored for 40 years was confirmed as Antarctica's first dinosaur bone, specifically a tail vertebra from a Titanosaur, originally collected on 9 December 1985.
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Titanosaurs inhabited Antarctica 80 million years ago, when the continent was forested rather than icy.
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Although some dinosaur fossils have been found in Antarctica since 1985, discoveries there have been rare.
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A fossil that has spent 40 years lying forgotten in a drawer has been discovered, and you will never guess what it is...a dinosaur bone.

It turns out that it is the first dinosaur bone ever found in Antarctica.

The specimen, which was found back in 1985, has been stored away in the geology collection of the British Antarctic Survey (BAS) in Cambridge.

However now, after being studied by palaeontologists, it has been confirmed it is a tail bone from a type of dinosaur called a Titanosaur.

The group of Titanosaur dinosaurs contains the largest dinosaurs to ever walk the Earth.

The specimen was originally collected on James Ross Island, and its discovery was recorded in a field notebook kept by a geologist called Dr Mike Thomson.

He kept the fossil alongside a tiny neat sketch which was dated 9 December 1985 and was labelled "vertebra of large reptile", noting it was about 10cm wide.

However, the team back then didn't realise quite what this discovery was.

This all changed recently when Dr Mark Evans, collections manager at the British Antarctic Survey (BAS) in Cambridge, rediscovered the fossil.

He said: "It's only when you start thinking, 'what's in this drawer?', that sometimes you come across something and you think, 'Ah, this looks interesting'".

And following his find, he called in Prof Paul Barrett from the Natural History Museum (NHM) to confirm his discovery.

"As soon as I saw it, I knew what we were dealing with… it was a dead cert we were dealing with a Titanosaur," said Prof Barrett.

When Titanosaurs inhabited Antarctica 80 million years ago, it would have been covered in forest rather than the ice we find there today

Not only is this fossil from one of the largest dinosaurs to walk the Earth, but it also is special because of where it was found - Antarctica.

Whilst some dinosaur fossils have been found in this remote part of the world in the years after 1985, there haven't been very many.

"It shows that an area that we now think is really uninhabitable was once actually very habitable and had this huge cast of characters living on it," explained Prof Barrett.

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