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A pre-Archaeopteryx troodontid theropod from China with long feathers on the metatarsus
The extensive feathering of this specimen, particularly the attachment of long pennaceous feathers to the pes, sheds new light on the early evolution of feathers and demonstrates the complex distribution of skeletal and integumentary features close to the dinosaur–bird transition.
Reduced plumage and flight ability of a new Jurassic paravian theropod from China.
A basal troodontid from the Tiaojishan Formation that resembles Anchiornis is reported that increases the known diversity of small-bodied dinosaurs in the Jurassic, shows that taxa with similar body plans could occupy different niches in the same ecosystem and suggests a more complex picture for the origin of flight.
Was Dinosaurian Physiology Inherited by Birds? Reconciling Slow Growth in Archaeopteryx
These findings dispute the hypothesis that non-avialan dinosaur growth and physiology were inherited in totality by the first birds and demonstrate the presence of a scale-dependent maniraptoran histological continuum that Archaeopteryx and other basalmost birds follow.
New Eoenantiornithid Bird from the Early Cretaceous Jiufotang Formation of Western Liaoning, China
Enantionithine birds are the most blooming branch of early birds and have distinct diversities. A large number of enantionithine birds have been reported from the Early Cretaceous Jiufotang Formation
Mosaic evolution in an asymmetrically feathered troodontid dinosaur with transitional features
This report reports a new troodontid from the Lower Cretaceous Jehol Group of China that has anatomical features that are transitional between long-armed basal Troodontids and derived short-armed ones, shedding new light on troodonid character evolution and suggests that feather asymmetry was ancestral to Paraves.
A New Enantiornithine Bird from the Lower Cretaceous of Western Liaoning, China
ABSTRACT A new enantiornithine bird, Bohaiornis guoi, gen. et sp. nov., is described in this paper. The holotype, presumably a sub-adult, is a complete, fully articulated skeleton from the Lower
A new Jurassic theropod from China documents a transitional step in the macrostructure of feathers
The phylogenetic analysis places Serikornis, together with other Late Jurassic paravian from China, as a basal paravians, outside the Eumaniraptora clade, suggesting that hindlimb remiges evolved in ground-dwelling maniraptorans before being co-opted to an arboreal lifestyle or flight.
A gigantic feathered dinosaur from the Lower Cretaceous of China
Morphometric analysis suggests that Y. huali differed from tyrannosaurids in its growth strategy, thus providing direct evidence for the presence of extensively feathered gigantic dinosaurs and offering new insights into early feather evolution.
A New Enantiornithine Bird from the Lower Cretaceous of Western Liaoning, China, and Its Implications for Early Avian Evolution
A new enantiornithine bird from the Lower Cretaceous Jiufotang Formation of western Liaoning, China is described, indicating that a carpometacarpal morphology similar to that seen in modern birds probably evolved independently in enantiornsithines and appeared earlier than in Ornithuromorpha, and demonstrates that character evolution in early birds was more complex than previously believed.
A New Sapeornithid Bird from China and Its Implication for Early Avian Evolution
A cladistic analysis shows that Shenshiornis possesses a skull as primitive as or even more primitive than that of Archaeopteryx and hind limbs modified for an improved arboreal capability and cursorial capability significantly weakens at the base of the Pygostylia due to a change in locomotor system.