It represents the first unequivocal Ordovician eurypterid recorded in China as ... may indicate that some early eurypterids favored living in deeper waters than their post-Ordovician relatives.

Yet nothing was known on whether it could breathe air. The closest living relative to the eurypterid is the horseshoe crab, which lays eggs on land but is unable to breathe above water.

The eurypterid was initially brought to the attention ... group of invertebrates belonging to the Chelicerae which includes living groups of animals like scorpions and spiders.

NANJING, May 16 (Xinhua) -- Researchers from China and the United Kingdom have discovered fossils of a previously unknown eurypterid, more commonly referred to as a sea scorpion, dating back 450 ...

YOU wouldn’t want to trip over this monster on a night out. Measuring up to 2 metres long, the eurypterid water scorpion is the largest arthropod that ever lived. Fortunately for us, it died out ...

Some of the animal's body segments suggest a total length of up to 1.7 metres (5.57 feet), making it the largest known eurypterid from its era. It is also 10 million years older than any other sea ...

Specimens of what appear to be the largest eurypterid species found in Australia could shed light on the sudden extinction of the massive arthropods. By Rebecca Dzombak Most modern scorpions would ...

Yet nothing was known on whether it could breathe air. The closest living relative to the eurypterid is the horseshoe crab, which lays eggs on land but is unable to breathe above water.

NANJING -- Researchers from China and the United Kingdom have discovered fossils of a previously unknown eurypterid, more commonly referred to as a sea scorpion, dating back 450 million years to ...