Arthropleura was an extinct genus of giant, millipede-like arthropods that lived during the Carboniferous and Permian periods, approximately 345 to 290 million years ago. It was the largest known land invertebrate of all time, reaching lengths of up to 8 feet (2.5 meters). Fossils have been found in North America and Europe, and the animal was likely herbivorous, feeding on plants. #arthropleura #millipede #metal