Carnegie Museum of Natural History

One of the Four Carnegie Museums of Pittsburgh

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Ask a Paleontologist

Diplodocus carnegii dinosaur fossil

In January, Carnegie Museum of Natural History paleontologist Dr. Matt Lamanna talked from the Big Bone Room of Carnegie Museum of Natural History on Facebook Live and answered questions from viewers and schools across the country. Matt received more than 75 questions! Here’s one he wasn’t able to answer live. New episodes featuring different scientists are live streamed every month. Follow us on Facebook!

How old is the Diplodocus in our museum?

“Our Diplodocus carnegii fossils are about 150 million years old. If you’re asking how old the animals were when they died, unfortunately we don’t know that (at least for the moment).”