A Jurassic graveyard in Patagonia, Argentina, holds more than 100 fossilized eggs and the bones of 80 Mussaurus patagonicus dinosaurs ranging in age from hatchling to adult. The trove of dinosaur remains suggests that these paleo-beasts lived in
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Apr 14, 2021 09:53 AM EDT
These stones were conveyed over 600 miles in the belly of a dinosaur. A new study discovered that during the Mesozoic Era, dinosaurs with long necks migrated hundreds of miles across what is now called the American Midwest. How do scientists know that these huge beasts migrated?
(Photo : Creative Vix)
The Pink Stones
The dinosaurs swallowed pink stones in what is now Wisconsin, walked westward over 1,000 kilometers (600 miles), and then passed away in the region that s now called Wyoming, abandoning the stones in a new location.
Josh Malone, a lead researcher on the study, also a graduate student in the Jackson School of Geosciences at the University of Texas at Austin, told Live Science: We believe that these stones were conveyed from southern Wisconsin to north-central Wyoming in the dinosaur s belly.
There seems to be two rules in dinosaur movies: 1) the dinosaurs are almost all carnivorous (who wants to see a movie about giants eating palm trees?) and 2) they come in three sizes: cute dog-sized babies, wild mid-sized teens and huge people-eating adult monsters. This doesn’t match modern carnivores, whose adults come in all sizes from tiny felines to midsized wolves to huge grizzlies. It doesn’t match what paleontologists have found either – they’ve found fossils of tiny adult carnivorous dinosaurs and T-Rex-sized giant carnivores. What’s missing is mid-sized, fully-grown dinos. That conundrum is the focus of a new study which may have found the missing size mediums. Any guesses?