T. Rex in Miniature
The going theory about the Tyrannosaurus rex, in case you didn't know, had been until very recently that this famous mega-dinosaur sported stumpy little arms as an evolutionary adaptation related to its jumbo body size. Then a fossil of Raptorex kriegsteini -- perhaps 1/100th the size of T. rex, its descendant -- came along and upended that notion with its own disproportionately puny forelimbs.
The going theory about the Tyrannosaurus rex, in case you didn’t know, had been until very recently that this famous mega-dinosaur sported stumpy little arms as an evolutionary adaptation related to its jumbo body size. Then a fossil of Raptorex kriegsteini — perhaps 1/100th the size of T. rex, its descendant — came along and upended that notion with its own disproportionately puny forelimbs. –KA
Wait, before you go…BBC:
A 3m-long dinosaur fossil from China which predates T. Rex by 60 million years is a blueprint for the mighty carnivore, say researchers.
They tell Science magazine that the fossil displays the same features as T. rex but in miniature.
The new species, Raptorex kriegsteini, would have weighed around 65kg; its descendants were 90 times as massive.
Scientists believe it could be the “missing link” between earlier species of dinosaur and T. rex.
The 125-million-year-old specimen suggests that T. rex’s characteristic big head with enhanced jaw, relatively small forearms and huge back legs were inherited from this much smaller dinosaur, and that the body type changed little over millions of years except in size.
If you're reading this, you probably already know that non-profit, independent journalism is under threat worldwide. Independent news sites are overshadowed by larger heavily funded mainstream media that inundate us with hype and noise that barely scratch the surface. We believe that our readers deserve to know the full story. Truthdig writers bravely dig beneath the headlines to give you thought-provoking, investigative reporting and analysis that tells you what’s really happening and who’s rolling up their sleeves to do something about it.
Like you, we believe a well-informed public that doesn’t have blind faith in the status quo can help change the world. Your contribution of as little as $5 monthly or $35 annually will make you a groundbreaking member and lays the foundation of our work.
Support Truthdig
There are currently no responses to this article.
Be the first to respond.