All of the fossils date back to 183 million years ago during the Jurassic period.
The team is now debating how the fossils fit into the history of life.
BBC: Fossil finds in Leicestershire 'absolutely world class'
The fossils ranged from small Eocene swimmers imprinted on rock to the remains of late-Cretaceous dinosaurs.
The fossils are the oldest collection of dinosaur embryos ever found, the researchers said.
Bands of dark and light along the tail can be seen in the fossils.
But it looks like the weight of events may finally crush resistance from the fossils at Shell.
When the dinosaur reached Great Britain, he discovered that there were no permits, and imported the fossils anyway.
The scientists have used isotopic dating to determine how old the fossils are.
BBC: Fossil finds in Leicestershire 'absolutely world class'
Researchers have discovered the fossils of what might be the earliest known dinosaur.
Although "ten a penny" in terms of their abundance, the fossils still hide some secrets about the living animals' ecology.
The fossils of the dinosaur, Nyasasaurus parringtoni, were part of a collection at the Natural History Museum in London.
An international team decided to take another look at the fossils recently.
The fossils were discovered in areas that were once freshwater floodplains home to fishes, amphibians, turtles, crocodiles, terrestrial lizards, pterosaurs, dinosaurs and birds.
From the fossils the researchers have, the Nyasasaurus was between 7 to 10 feet in length and weighed somewhere between between 45 and 135 pounds.
The fossils were found in northeast China earlier this year, embedded in rock dating back 160 million years, and have been called "Darwinopterus" after the renowned naturalist Charles Darwin.
He said the variation was due to the type of limestone the fossils were excavated from, which can reduce the level of detail - or resolution - of the specimens.
"The fossils at Charnwood were considered so important because it was the one place in the world where we could definitively say fossils were of Precambrian age, " added Dr Wilby.
BBC: Fossil finds in Leicestershire 'absolutely world class'
To investigate further, the team took collagen - the dominant protein found in bone - from the fossils, and compared this with collagen found in other fossils and modern animals.
As well as the fossils Scott collected, the exhibition also features a stuffed emperor penguin, watercolours of the ice-scape by Edward Wilson, and photographs from the pole taken by Herbert Ponting.
BBC: Scott of Antarctic 'propaganda created Welsh obsession'
By bombarding the fossils with an infrared synchrotron beam a noninvasive way of analyzing a material's internal chemistry the scientists said they detected molecular traces of an organic protein inside the mineralized bones.
"The fossils in Chicago were evaluated by experts at the Field Museum, who determined them to be animal remains dating back as far as 100 million years, " ICE said in the statement.
The study hinges on the analysis of existing fossils found in western North America, from Canada through to the south-west of the US, where the fossils of small reptiles are much better preserved than in other parts of the world.
Some researchers think Homo erectus evolved in East Africa, where many of the oldest fossils have been found, but the discovery in the 1990s of equally old Homo erectus fossils in the country of Georgia has led others to suggest an Asian origin.
Evolutionists also cite the many fossils of early golfers found in the rough of several Scottish links course.
But the fish fossils show that this sinking actually happened in the North Atlantic.
FORBES: Could Fish Fossils Help Us Better Predict Climate Change?
However, the new fossils come from a very different part of the dinosaur family tree.
The new fossils found by Dr Leakey and her team (which includes a third Leakey generation in the form of her daughter, Louise) may, however, help clear up what is going on.
Mongolia enacted laws in 1924 criminalizing the exportation of dinosaur fossils from the country.
CNN: U.S. seeks to return Tyrannosaurus skeleton to Mongolia
应用推荐