Fossils from the Grand Canyon
Fossilized worm tracks from the mid-Cambrian Period (about 550 million years ago) in the Bright Angel Shale Formation, Parashant Canyon, Grand Canyon National Park, Arizona
Picture No
13625945
Media ID
43117129
Size
3943px x 2550px
(10.3MB)
Credit
William H. Mullins /Science Source/ www.ardea.com
Category
NA
Availability
Available in UK only. No agents
Ardea Picture Library
Picture No
13625945
Contributor Ref
SCS-90075179
