Scientists say a 305 million-year-old fossil is the closest relative to "true spiders" ever discovered - but is not itself a spider. Easily pre-dating the dinosaurs, the 1.5cm creature lived alongside the oldest known ancestors of modern spiders but its lineage is now extinct.

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Scientists say a 305 million-year-old fossil is the closest relative to "true spiders" ever discovered - but is not itself a spider. Easily pre-dating the dinosaurs, the 1.5cm creature lived alongside the oldest known ancestors of modern spiders but its lineage is now extinct.