It's rare to
find pterosaur fossils at all because their skeletons were lightweight and easily damaged once they died, and the small ones are the rarest of all.
Not exact matches
To date, only a small handful of
pterosaur eggs with a well - preserved 3 - D structure and embryo inside have been
found and analyzed — three eggs from Argentina and five from China.
It is not clear if these giant
finds represent a new species in the
pterosaur family, which includes pterodactyls and crested pteradons.
Previous studies suggest that the Late Cretaceous skies were only occupied by much larger
pterosaur species and birds, but this new
finding, which is reported in the Royal Society journal Open Science, provides crucial information about the diversity and success of Late Cretaceous
pterosaurs.
Dr Witton said: «The specimen is far from the prettiest or most complete
pterosaur fossil you'll ever see, but it's still an exciting and significant
find.
Finding fossilized eggs containing 3 - D embryos opens a new window into
pterosaur development, says coauthor Alexander Kellner, a vertebrate paleontologist at Museu Nacional / Universidade Federal do Rio de Janeiro.
The cache of more than 200 fossil eggs
found with bones of juvenile and adult animals in northwestern China suggests to some researchers that
pterosaur parents may have cared for their newly hatched young.
A century of digging
found no teeth from giant predatory dinosaurs, a sign that
pterosaurs were the biggest and baddest predators on the island.
He could
find no evidence to support the idea that large
pterosaurs got off the ground using only their hind legs to launch.
Examples of adaptive radiation can be
found in: the Galapagos finches, Australia's marsupials, Hawaii's honeycreepers and fruit flies, Madagascar's carnivores and other mammals, New Zealand's birds and the prehistoric flying
pterosaurs.
THE largest ever trove of
pterosaur eggs and embryos has been
found in China.
His colleague Xiaolin Wang at the Chinese Academy of Sciences in Beijing has now
found 215 eggs from the
pterosaur Hamipterus tianshanensis, each the size of a small chicken egg.
A spectacular fossil
find is providing tantalizing new clues about the habits of
pterosaurs, ancient flying reptiles that lived at the same times as dinosaurs.
Pterosaurs evolved some 220 million years ago and only a few eggs and embryos have ever been
found.
But her team's new
find, she says, may mean that, «
pterosaurs were doing better than we thought.»
Fossils of fish, frogs, crocodiles, salamanders, lizards, crayfish, turtles,
pterosaurs, clams are also
found.
The rare
find is the first time scientists have unearthed complete
pterosaur eggs, researchers from the Chinese Academy of Sciences» Institute of Vertebrate Paleontology and Paleoanthropology announced Thursday.
And in April, scientists discovered fossils belonging to the world's earliest and most primitive
pterosaur, a 163 million - year - old
find.
The fossil bed
found in Brazil contained hundreds of bones from roughly 50 individual
pterosaurs, including partial skulls and jawbones, according to the study.
«This
finding represents the earliest and most primitive pterodactyloid
pterosaur, a flying reptile in a highly specialized group that includes the largest flying organisms,» Chris Liu, program director in the National Science Foundation's Division of Earth Sciences and author of the new study, said in a statement.
The latest
findings are based on the discovery of a new species of
pterosaur from the Patagonia region of South America.
The first
pterosaur fossil was discovered in the late Jurassic Solnhofen limestone in 1784, and since then 29 other kinds of
pterosaurs have been
found in the Solnhofen site.