Pangaea believed to be the main cause of the shrinking of lysocline areas. The third cause of this extinction event that can be attributed to northern Pangaea is the beginnings of anoxic ocean environments, or oceans with very low oxygen concentrations. The mix of anoxic oceans and ocean acidification due to metal loading led to increasingly acidic oceans, which ultimately led to the extinction of benthic species. Pangaea Pangaea or Pangea () was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from earlier continental units approximately 335 million years ago, and it began to break
Gondwana Kingdom him. He moved his capital from Chouragarh to Ramnagar of Mandla district. Shankar shah and Raghunath Shah was the freedom fighter who revolted against the British Raj in 1857. Gondwana Kingdom Gondwana Kingdom was the ruling kingdom in Gondwana region of India.The Gondwana region includes core region of eastern part of the Vidarbha of Maharashtra, the parts of Madhya Pradesh immediately to the north of it, and parts of the west of Chhattisgarh. The wider region extends beyond these, also including parts of northern Telangana, western Odisha and southern Uttar Pradesh. The Gondwana Kingdom was ruled by Rajgonds.The Rajgonds are