Arthropleura

Arthropleura armata

Arthropleura, from Ancient Greek ἄρθρον (árthron), meaning "joint", and πλευρά (pleurá), meaning "rib", is an extinct genus of massive myriapod that lived in what is now Europe and North America around 344 to 292 million years ago, from the Viséan stage of the lower Carboniferous period to the Sakmarian stage of the lower Permian period