Roughly 435 million years ago, during the Llandovery epoch of the Silurian period, giant sea scorpions swam through Earth’s oceans. The dog-sized sea-dwelling nightmares, while haunting, have ...

A team of researchers found a fossil of a sea scorpion that was about 3 feet. That's about the size of a dog – and not a chihuahua either. Mixopterids, the most remarkable of the eurypterid (sea ...

Gigantic sea scorpions that lurked in the ocean more than 400 million years ago weren't as scary as they sound, a new study suggests. The massive creatures, known as pterygotids, were the largest ...

A 3.3 foot-long (1 meter) sea scorpion prowled the seas of what is now China some 435 million years ago, using its giant, spiny arms to ensnare prey. Palaeontologists recently discovered the ...

Graptolites show us how unpredictable the Silurian period really could be. What graptolites tell us is a story of incredible changes in the ocean, of periods where the oceans became poisonous and ...

Eurypterids (Arthropoda: Chelicerata), normally known as sea scorpions, are an important extinct group of Paleozoic chelicerate arthropods. Researchers led by Profs. ZHANG Haichun, WANG Bo, ZHANG ...

New Haven, Conn. – Volcanic ash that encased and preserved sea life in the Silurian age 425 million years ago near Herefordshire, UK has yielded fossils of an ancient sea spider, or pycnogonid ...

Roughly 435 million years ago, during the Llandovery epoch of the Silurian period, giant sea scorpions swam through Earth’s oceans. The dog-sized sea-dwelling nightmares, while haunting, have ...

A team of researchers found a fossil of a sea scorpion that was about 3 feet. That's about the size of a dog – and not a chihuahua either. Mixopterids, the most remarkable of the eurypterid (sea ...