Geological time spiral

Autor:

United States Geological Survey

Credit:

Graham, Joseph, Newman, William, and Stacy, John, 2008, The geologic time spiral—A path to the past (ver. 1.1): U.S. Geological Survey General Information Product 58, poster, 1 sheet. Available online at http://pubs.usgs.gov/gip/2008/58/

Krótki link:

https://plwiki.pl/b/65939

źródło:

Wikimedia Commons

Wymiary:

2424 x 2145 Pixel (1947125 Bytes)

Opis:

A diagram of the geological time scale

Licencja:

Public domain