During its field trip from July 18-21, the research group, made up of Vietti and a handful of UW students, visited the Green River Stone Co. quarry, Rick Hebdon’s state fossil quarry, Fossil Safari ...

KEMMERER — Laura Vietti recently took some of her students on a trip back in time to Wyoming’s Green River Formation, where Eocene-era fish once swam; bats and birds flew; ...

It was part of the famous Green River Formation, an approximately 42-53 million year old slice of earth’s history known to be rich in fish fossils. It did not take long to start finding what we ...

In the 16 years he’s led the program, Lance Grande of The Field Museum in Chicago has helped students make all sorts of discoveries in Wyoming’s Green River Formation. This 52-million-year-old site is ...