Amplectobelua

Amplectobelua is an extinct genus of late Early Cambrian anomalocaridid, a group of stem arthropods that lived as free-swimming predators during the first half of the Paleozoic Era. Like other anomalocaridids, Amplectobelua had a pair of jointed grasping appendages, large eyes, a limbless body, and a series of fins or swimming lobes on both sides that extended along the length of its body. It was smaller than the related Anomalocaris, however, and had a specialized grasping...