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  • Bismarck intern finds fossil of world’s oldest mammalAugust 13, 2015

    An intern with the state Geological Survey found a fossil of a small mouse-sized critter older than 65 million years and among the first mammals to exist on Earth.

    Sean Ternes, a Bismarck native, was participating in a public fossil dig near Marmarth on July 9 when he found the jawbone of the glasbius twitchelli, a very small marsupial.

    Senior paleontologist Clint Boyd said the find is very significant.

    Not only has it never before been found in North Dakota, the half-inch piece of jawbone is the most complete of the species ever found.

    “The other cool thing about this species is that it was probably one of the first fruit-eating species. So this tells us about what the plant life was like in North Dakota with flowering and fruit producing plants,” Boyd said. Continue reading…