Desert Fossils Reveal 540-Million-Year-Old Jellyfish 'Graveyard'
By Mindy Weisberger, Senior Writer | August 7, 2017 06:49am ET
Walk across a beach's wet sand, and you'll leave behind imprints that briefly hold the shape of your feet before blurring and falling apart.
But 540 million years ago, seaside sand contained densely packed microbial communities, which created a gooey glue that was excellent for preserving impressions of ocean creatures left high and dry by retreating waves.
https://www.livescience.com/60048-oldest-stranded-jellyfish-graveyard.html
