This oddly shaped fossil came from a 6-million-year-old rock formation in Lake Mead National ... including ground sloth, horse, camel and mountain sheep, the park says. “Notches found on the ...

The fossil is a specimen of a species called Vegavis iaai, which lived around 69 million years ago – more than 2 million years before the mass extinction that wiped out all non-avian dinosaurs. It has ...

As a result of the gas flow from the well, oil production is now occurring from the Niobrara Formation. This is the first time this well has produced gas allowing oil production; AXP and Blackhart ...