Paleontologists working in China have discovered a first for dinosaurs: a species with only one finger. Named Linhenykus monodactylus, the extinct species stood only about two feet high and weighed about as much as a large parrot. Although small, the new dinosaur was a member of the carnivorous therapod dinosaurs, which include the infamous Tyrannosaurus Rex. The find was announced in the Proceedings of the National Academy of Sciences.
Researchers speculate that the one-clawed dinosaur may have used its single digit on each hand to dig out insect nests.
“Non-avian theropods start with five fingers but evolved to have only three fingers in later forms. Tyrannosaurs were unusual in having just two fingers but the one-fingered Linhenykus shows how extensive and complex theropod hand modifications really were,” said Michael Pittman of the Department of Earth Sciences at University College London in a press release.
The fossils of Linhenykus monodactylus, named after the Chinese city of Linh, were found in rocks that fate back 84-75 million years ago.
Artist’s impression of Linhenykus monodactylus, © Julius T. Csotonyi..
Related articles
Pictures: Scientists discover carnivorous pygmy dinosaur
(01/13/2011) Scientists have announced the discovery of a new species of carnivorous dinosaur which lived 230 million years ago in what is today Argentina.
2 new dinosaur species, including 15-horned beast, discovered in Utah
(09/23/2010) Scientists discovered two previously unknown species of dinosaur in southern Utah, reports the Associated Press.
Dwarf dinosaur confirmed: the horse-sized sauropod of Transylvania
(05/04/2010) A dinosaur mystery over a hundred years old has been unraveled according to a new study in the Proceedings of the National Academy of Sciences.