eurypterid

(redirected from Sea scorpions)
Also found in: Dictionary, Thesaurus.

eurypterid

any large extinct scorpion-like aquatic arthropod of the order Eurypterida, found in the SILURIAN PERIOD.
Mentioned in ?
References in periodicals archive ?
The big kahuna of New York fossils is the eurypterid, or giant sea scorpion.
To the horror and gleeful fascination of his classmates, a week or so later, Tyler delivered his oral report, explaining that four hundred million years ago, ten-foot giant sea scorpions violently reigned at the top of the food chain.
The haul totalled 95 eels, 487 pollack fish, 11 cod, six herring, three plaice, three lobsters, crabs and two long-spined sea scorpions.
Although the behaviour resembles that of a hermit crab, Hagadorn suspects these early explorers were the ancestors of a long-extinct group called sea scorpions, which had 6 to 13 pairs of legs.
Eurypterids, giant ravenous sea scorpions, and other invertebrate predators hunted fishes.
But once large fish like sharks evolved, they may have hunted the sea scorpions to extinction.