Fossil footprints show dinosaurs and early mammals living side-by-side

Fossil footprints show dinosaurs and early mammals living side-by-side

7 pictures A sandstone slab found on the grounds of NASA’s Goddard Space Flight Center contains fossilized footprints from both dinosaurs and mammals from about 100 million years ago A new discovery has been made at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, that has nothing to do with space. A sandstone slab covered in fossilized footprints has been excavated from the grounds, giving us a glimpse into a day-in-the-life of the area about 100 million years ago. The slab contains 70 tracks from at least eight different species, including rarely-seen interactions between both dinosaurs and mammals. Dusty […]

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