These Are the Oldest Known Footprints on the Planet
By George Dvorsky, Gizmodo, June 7, 2018
https://gizmodo.com/these-are-the-oldest-known-footprints-on-the-planet-1826648702
When did animals leave their first footprint on Earth?
Chinese Academy of Sciences, June 6, 2018, Press Release
https://www.eurekalert.org/pub_releases/2018-06/caos-wda060518.php
The paper is:
Zhe Chen, Xiang Chen, Chuanming Zhou, Xunlai Yuan, and
Shuhai Xiao, 2018, Late Ediacaran trackways produced by
bilaterian animals with paired appendages Science Advances
06 Jun 2018: Vol. 4, no. 6, eaao6691 DOI: 10.1126/sciadv.aao6691
http://advances.sciencemag.org/content/4/6/eaao6691
Yours,
Paul H.