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Grass existed on Earth at least 10 million years earlier than was known, based on a new discovery in fossilized dinosaur dung. It's also the first solid evidence that some dinosaurs ate grass. While dissecting fossilized droppings, known as coprolites, researchers found tiny silica structures called phytoliths. They are short, rigid cells that provide support to a plant. This type is found exclusively in grasses. The discovery shows that five types of grass related to modern varieties were present in the Gondwana region of the Indian subcontinent during the late Cretaceous period about 71 to 65 million years ago. Museum...

World's largest dino dung T. rex left an ancient calling card, writes Jacob Berkowitz. Jacob Berkowitz The Ottawa Citizen Sunday, September 07, 2003 Mountains, beavers and the Maple leaf. And with a recent paleontological discovery Canada could soon gain international recognition for another natural wonder -- tyrannosaurid turds. A team of Canadian and American scientists recently identified an Albertan fossil as the world's largest dinosaur dropping, stealing the title from a T. rex turd found in Saskatchewan in 1995. While stool size is notable, what's really exciting scientists about this latest find is what it contains: Incredibly well-preserved dinosaur muscle...

News in Science 18/4/2003 Ancient dung reveals a picture of the past [This is the print version of story http://www.abc.net.au/science/news/stories/s833847.htm] An arctic mound of soil covering a core of solid ice in northeastern Siberia (Pic: Science) The successful dating of the most ancient genetic material yet may allow scientists to use preserved DNA from sources such as mammoth dung to help paint a picture of past environments. An international research effort led by Eske Willerslev of the University of Copenhagen in Denmark reports in today?s issue of the journal Science it has extracted well preserved animal and plant DNA from...