Two feathered dinosaurs from northeastern China

  title={Two feathered dinosaurs from northeastern China},
  author={Ji Qiang and Philip J. Currie and Mark A. Norell and Ji Shu-an},
Current controversy over the origin and early evolution of birds centres on whether or not they are derived from coelurosaurian theropod dinosaurs. Here we describe two theropods from the Upper Jurassic/Lower Cretaceous Chaomidianzi Formation of Liaoning province, China. Although both theropods have feathers, it is likely that neither was able to fly. Phylogenetic analysis indicates that they are both more primitive than the earliest known avialan (bird), Archaeopteryx. These new fossils… Expand

Figures and Tables from this paper

An exceptionally preserved Lower Cretaceous ecosystem
Findings include feathered theropod dinosaurs and early birds, which provide additional, indisputable support for the dinosaurian ancestry of birds, and much new evidence on the evolution of feathers and flight. Expand
Four-winged dinosaurs from China
New evidence is provided suggesting that basal dromaeosaurid dinosaurs were four-winged animals and probably could glide, representing an intermediate stage towards the active, flapping-flight stage of proavians. Expand
An Early Ostrich Dinosaur and Implications for Ornithomimosaur Phylogeny
A new ornithomimosaur from the Yixian Formation of Liaoning Province People's Republic of China is described and this taxon is placed in a phylogenetic analysis of Coelurosauria and shown to be near the base of the ornithological clade. Expand
The Fossil Record of Feather Evolution in the Mesozoic1
The oldest known feathers from the Late Jurassic are already modern in form and microscopic detail and assignable to an extinct branch of the basal avian dichotomy, which means their features must have been established at a significantly earlier date. Expand
New advance in fossil anuran study
EXCITING reports on paleontological discoveries from western Liaoning Province, northeastern China have frequently been released in the past few years. From Confuciusornis to Sinosauropteryx, fromExpand
Palaeontology: 'Modern' feathers on a non-avian dinosaur
The occurrence of pinnate feathers, which clearly feature a rachis and barbs, on a small, non-avian dromaeosaur from northern China indicates that feathers of modern aspect evolved in dinosaurs before the emergence of birds and flight. Expand
Earliest Asian discoglossid frog from western Liaoning
Based on a superbly preserved skeleton, a new anuran taxon has been named and described from the Yixian Formation (Upper Jurassic/Lower Cretaceous), Liaoning Province, northeastern China. ThisExpand
Palaeobiology: A refugium for relicts
The Yixian Formation in China's Liaoning Province has yielded many spectacular fossils — notably, several remarkably complete feathered dinosaurs. Yet its age has been controversial. AccurateExpand
Did dinosaurs come up to scratch?
The high specificity of bird ectoparasites has frequently been interpreted to mean that they have a long evolutionary history. Either they were present as parasites before the main diversification ofExpand
A New Symmetrodont Mammal with Fur Impressions from the Mesozoic of China
A complete specimen of a symmetrodont mammal with well-preserved hairs and soft tissue from the basal part of the Yixian Formation in the Sihetun area, Beipiao, western Liaoning is described, significant for understanding the morphology, osteology, phylogeny and life habits of Mesozoic symmetRodont mammals. Expand


The theropod ancestry of birds: new evidence from the late cretaceous of madagascar
Rahona has a robust, hyperextendible second digit on the hind foot that terminates in a sicklelike claw, a unique characteristic of the theropod groups Troodontidae and Dromaeosauridae. Expand
Unusual Early Cretaceous birds from Spain
The Neocomian Spanish outcrops of Montsec (province of Lérida) and the new one of Las Hoyas (province of Cuenca) have yielded several avian remains in the last few years. Several isolated feathersExpand
A true Carinate bird from Lower Cretaceous deposits in Mongolia and other evidence of early Cretaceous birds in Asia
Abstract A partial, associated skeleton with feather impressions of a bird from early Cretaceous (Neocomian) deposits in Mongolia constitutes a new family and order (Ambiortidae, Ambiortiformes). TheExpand
An exceptionally well-preserved theropod dinosaur from the Yixian Formation of China
The two nearly complete skeletons of a small theropod that represent a species closely related to Compsognathus are described, Sinosauropteryx, which has the longest tail of any known theropid, and a three-fingered hand dominated by the first finger. Expand
A Lower Cretaceous enantiornithine bird from the Ordos Basin of Inner Mongolia, People's Republic of China
The discovery of an Early Cretaceous bird from the Ordos Basin of Inner Mongolia (People's Republic of China) is reported. The specimen, collected by the Dinosaur Project (China – Canada – Alberta –Expand
A carinate bird from the Upper Jurassic of western Liaoning, China
AFTER the publication of the fossil bird Confuciusorins , additional skeletons of fossil birds have been found by Hou Lianhai, Hu Yaoming, Wang Ping, Gu Yucai and Sun Yutie in the Yixian Formation ofExpand
Early Evolution of Avian Flight and Perching: New Evidence from the Lower Cretaceous of China
Modern avian flight function and perching capability must have evolved in small-bodied birds in inland habitats not long after Archaeopteryx. Expand
tor's descendants." Bryant (1994) noted that, while the first two definition types will always be stable, apomorphy-based definitions are potentially confusing if that derived character is found toExpand
A New Specimen of Archaeopteryx
A new specimen of the primordial bird Archaeopteryx is reported from the Upper Jurassic Solnhofen Limestone of Bavaria, which is the largest of now six skeletal specimens and shows dose similarities with the London specimen. Expand
The phylogenetic position of the Tyrannosauridae; implications for theropod systematics
The inclusion of the Tyrannosauridae within Maniraptora suggests a major adaptive radiation of coelurosaurs within Cretaceous Asiamerica comparable to contemporaneous radiations in various herbivorous dinosaurian clades. Expand