"Walking cactus: Scientists have discovered what researchers are calling the missing link in China. The strange-looking walking cactus is thought to be the link between worm-like creatures and arthropods like spiders."
"Fossils of a 10-legged wormy creature that lived 520 million years ago may fill an important gap in the history of the evolution of insects, spiders and crustaceans.
The so-called walking cactus belongs to a group of extinct worm-like creatures called lobopodians that are thought to have given rise to arthropods. Spiders and other arthropods have segmented bodies and jointed limbs covered in a hardened shell.
Before the discovery of the walking cactus, Diania cactiformis, all lobopodian remains had soft bodies and soft limbs, said Jianni Liu, the lead researcher who is affiliated with Northwest University in China and Freie University in Germany."
Christian Science Monitor: "Walking cactus discovered in China"
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