{"version":"1.0","type":"link","title":"Casper Formation - Newikis","description":"The Casper Formation is a geologic formation in Wyoming, US. It preserves fossils dating back to the Pennsylvanian period.","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://thumb.wikimedia.org/wikipedia/commons/thumb/8/83/Sandstones_%28Casper_Formation%2C_Middle_Pennsylvanian_to_Lower_Permian%3B_near_Ayres_Natural_Bridge%2C_Wyoming%2C_USA%29_12_%2849145110141%29.jpg/1280px-Sandstones_%28Casper_Formation%2C_Middle_Pennsylvanian_to_Lower_Permian%3B_near_Ayres_Natural_Bridge%2C_Wyoming%2C_USA%29_12_%2849145110141%29.jpg","thumbnail_width":1280,"thumbnail_height":851}