Stay up to date with notifications from The Independent

Notifications can be managed in browser preferences.

Prehistoric sea scorpion that grew to 6ft in length named after Trojan warship

Scientists call predator Pentecopterus, after the ancient 'penteconter' ship

John von Radowitz
Tuesday 01 September 2015 00:03 BST
Comments
‘Pentecopterus decorahensis’ grew up to 6ft in length and was one of the most powerful predators of its era
‘Pentecopterus decorahensis’ grew up to 6ft in length and was one of the most powerful predators of its era (Lynch/Yale University/PA)

Your support helps us to tell the story

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or producing our latest documentary, 'The A Word', which shines a light on the American women fighting for reproductive rights, we know how important it is to parse out the facts from the messaging.

At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.

The Independent is trusted by Americans across the entire political spectrum. And unlike many other quality news outlets, we choose not to lock Americans out of our reporting and analysis with paywalls. We believe quality journalism should be available to everyone, paid for by those who can afford it.

Your support makes all the difference.

A monstrous creature from the distant past, named after a Trojan warship, could have stepped straight from the pages of Greek myth.

The newly discovered sea scorpion lived 467 million years ago and grew to a length of nearly 6ft.

It was one of the most powerful ocean predators of its time, with an exoskeleton “helmet” shielding its head, a sleek narrow body, and large grasping limbs for trapping prey. Scientists named the beast Pentecopterus decorahensis, after the “penteconter”– an ancient Greek ship rowed by 50 oarsmen that saw service in the Trojan War.

Although they look like relatives of lobsters, sea scorpions, or eurypterids, were the ancestors of modern spiders.

Lead researcher Dr James Lamsdell, from Yale University, said: “The new species is incredibly bizarre. The shape of the paddle – the leg which it would use to swim – is unique, as is the shape of the head.”

The creature, described in the journal BMC Evolutionary Biology, was identified from more than 150 fossil fragments excavated from the Winneshiek Shale in north-east Iowa, in the US.

Some of the body segments suggest a total length of up to 1.7m (5ft 7in), making it the largest known eurypterid from its era.

Press Association

Join our commenting forum

Join thought-provoking conversations, follow other Independent readers and see their replies

Comments

Thank you for registering

Please refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in