Tips: Perhaps, the color of really goods have a little difference from the picture as different the computer, please understand

Ledelian is an ancient invertebrate belonging to the order Ledelian. Abbreviated as "Lai's worm". A class of trilobites that appeared earlier. Named after the British paleontologist Radcliffe, who was the first to study this fossil. The head saddle is narrow and long, almost extending to the outer edge, with three pairs of saddle grooves and a wide neck ring. Having cheek spines. The eye lobe is crescent shaped, with the end connected to the saddle of the head. Deep edge grooves. The angle between the front support of the surface line and the central axis is 45 ° to 90 °. There are many thoracic segments. The tail is small and not segmented.