Scientists claim to have uncovered an entire Ice Age ecosystem, after unearthing wealth of bones from an excavation site in western Colorado in the US. A team from the Denver Museum of Nature and Science discovered two additional Ice Age mammal species at the fossil dig site at Ziegler Reservoir near Snowmass Village, Colorado, last week.
The first find was a humerus, or upper arm bone, of a giant ground sloth. The second discovery was a small deer-like animal. Partial remains of five mastodons, three Ice Age bison and a juvenile Columbian mammoth, as well as plant matter and insects, have also been found.
Mammoths and mastodons are both elephant-like creatures with long tusks that both faded into extinction on this continent more than 12,800 years ago.
“It is truly uncommon to get all parts of a fossil ecosystem preserved in one place. Instead of having just a piece of the ecosystem to tell the story, you’ve got all aspects of it. It’s one of the most exciting scientific discoveries I’ve ever worked on,” the Daily Mail quoted SIan Miller, the museum’s curator of palaeontology, as saying. In fact, it was a bulldozer operator, working on a construction project at Ziegler Reservoir near the Snowmass Village, who noticed what turned out to be rib bones sticking out of the ground while working in mid-October.
At first workers examined the bones thinking they were likely from a cow, but quickly noticed an “enormous” jaw bone.
There are four excavation crews working on recovering bones at the dig site right now.