Hypoxia and Medicine

P-T ocean anoxia 1.gif

Summary: anoxia that characterized most of the ocean of 250 million years ago. Oceanic anoxia at the Permian-Triassic boundary, about 250 million years ago. (Map from Wignall and Twitchett, 2002) Exactly where the exact Permian-Triassic boundary is in this boundary section has been the subject of ongoing dispute. Yukio Isozaki, who has probably studied the Japanese boundary sections

Image Dimensions: 525 x 328