Above Image: Artist’s reconstruction of Saccorhytus coronarius, based on the original fossil finds. The actual creature was probably no more than a millimetre in size
Researchers have discovered the earliest known ancestor of humans – along with a vast range of other species.
They say that fossilised traces of the 540-million-year-old creature are “exquisitely well preserved”.
The microscopic sea animal is the earliest known step on the evolutionary path that led to fish and – eventually – to humans.