Earliest signs of life on land preserved in ca. 3.5 Ga hot spring deposits User burtzev, in the Earth Science subreddit, 11 May 2017
Earliest signs of life on land preserved in ca. 3.5 Ga hot spring deposits User burtzev, in the Geology! Before the World. subreddit, 11 May 2017
Earliest signs of life on land preserved in ca. 3.5 Ga hot spring deposits User burtzev, in the Evolution subreddit, 11 May 2017