bob10
29th June 2017, 01:01 PM
The map that fills a 500-million-year gap in Earth's history - ABC News (Australian Broadcasting Corporation) (http://www.abc.net.au/news/2017-06-27/map-fills-500-million-year-gap-in-earth-history/8655196?utm_source=sfmc&utm_medium=email&utm_campaign=abc_science_newsletter%3a125&user_id=7311959b001f799207f3bac998b7c7cffd29affce9 b9f42739976e037abad442&WT.tsrc=email&WT.mc_id=Email%7cabc_science_newsletter%7c125&utm_content=story_5_sub)