

Scientists say an excavation site in western Colorado is revealing an entire Ice Age ecosystem.
Members of the Denver Museum of Nature and Science excavation crews discovered two additional Ice Age mammal species at a fossil dig site at Ziegler Reservoir near Snowmass Village, Colorado on Thursday.
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. Crews haven't uncovered any human artifacts.
Speaking to CBC News, Ian Miller, the museum's curator of paleontology said: 'It is truly uncommon to get all parts of a fossil ecosystem preserved in one place.
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