Spain: could this be the world’s oldest fossil?

A 500-million-year-old trilobite fossil discovered in Salamanca, Spain, is being touted as the newest world’s oldest fossil.

Trilobite fossils.

Trilobite fossils. Image by James St. John / CC BY 2.0

The fossil was discovered in the village of La Rinconada de la Sierra by a team of experts working for Unesco. The ocean-dwelling anthropod is thought to be about 520 million years old and until this discovery had only been found in Serbia, Morocco and the border between Mexico and the US. Read more:

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