1. Chinese scientists at table unveil mammal fossil with dinosaur remnants in stomach area from left to right: Meng Jin, Hu Yaoming, Wang Yuanqing
2. Close-up of mammal fossil, zoom in to stomach
3. SOUNDBITE: (English) Meng Jin, Associate Curator, Division of Paleontology, American Museum of Natural History:
"This is the first ever discovery of this kind of material, and it shows, I think all of us will be very happy today. Now mammals finally get a chance to chase dinosaurs, so now for first time we know that dinosaurs are edible, maybe tasty. So it''''s a very interesting and exciting discovery, which will change the view, the picture, of the early mammals, mezozoic mammals, than what we thought before."
4. Photographers take pictures of fossil, pan to show scientists at table with fossil
5. Close-up of fossil mammal head, zoom out to show fossil
6. SOUNDBITE: (Mandarin) Hu Yaoming, researcher, Institute of Vertebrate Paleontology and Paleoanthropology in Beijing:
"First, it''''s direct evidence showing it''''s a carnivorous mammal. Second, the food it ate included dinosaur, and in this animal there is a juvenile psittacosaur. Third, what''''s more surprising is that his size is more than one metre. I don''''t mean this one, I mean another fossil (of the same animal). These three points are things we''''ve never seen before."
7. Pan from psittacosaur skeleton in museum to replica of psittacosaurs
8. Close-up baby psittacosaurs of the type found in stomach contents of mammal
9. Tilt down from large duck-billed dinosaur
At the American Museum of Natural History in New York on Wednesday Chinese scientists unveiled evidence that turns conventional wisdom of mammalian paleontology on its head.
Apparently, it wasn''''t always rapacious dinosaurs eating helpless mammals - early mammals, it seems, sometimes snacked on dinosaurs as well.
Villagers digging in China''''s rich fossil beds uncovered the preserved remains of a tiny dinosaur in the belly of a mammal - a startling discovery for scientists who have long believed early mammals couldn''''t possibly attack and eat a dinosaur.
Scientists say the animal''''s last meal is probably the first proof that mammals hunted small dinosaurs some 130 (m) million years ago.
It contradicts conventional evolutionary theory that early mammals were timid, chipmunk-sized creatures that scurried in the looming shadow of the giant reptiles.
In this case, the mammal was about the size of a large cat, and the victim was a five inch "parrot dinosaur".
A second mammal fossil found at the same site, but not shown at the museum, claims the distinction of being the largest early mammal ever found. It''''s about the size of a modern dog, a breathtaking 20 times larger than most mammals living in the early Cretaceous period.
Considering the specimens in tandem, scientists suggest the period in which these animals lived may have been much different than is commonly understood as the Age of Dinosaurs - a time dominated by long-necked, 85-ton plant-eaters and the emergence of terrifying hunters with bladelike teeth and sickle claws.
It appears that at least some smaller dinosaurs had to look over their shoulders for snarling, meat-eating mammals claiming the same turf.
The fossils were found more than two years ago in Liaoning province. The specimens were taken to a Beijing laboratory where they were cleaned and analysed by Chinese and American scientists.
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