Sea Scorpions Tie

Sea scorpions are an extinct group of arthropods related to arachnids which include the largest known arthropods that ever lived. They predate the earliest fishes. The largest reached 2.5 metres (8 ft 2 in) or more in length, but most species were less than 20 centimetres. They were formidable predators that thrived in warm shallow water, in both seas and lakes,[3] in the Ordovician to Permian from 460 to 248 million years ago. The typical eurypterid had a large, flat, semicircular carapace, followed by a jointed section, and finally a tapering, flexible tail, most ending with a long spine at the end. (Adapted from Wikipedia)