SOCIAL BEHAVIOUR AND MASS MORTALITY IN THE BASAL CERATOPSIAN DINOSAUR PSITTACOSAURUS (EARLY CRETACEOUS, PEOPLE'S REPUBLIC OF CHINA)

@article{Qi2007SOCIALBA,
  title={SOCIAL BEHAVIOUR AND MASS MORTALITY IN THE BASAL CERATOPSIAN DINOSAUR PSITTACOSAURUS (EARLY CRETACEOUS, PEOPLE'S REPUBLIC OF CHINA)},
  author={Zhao Qi and Paul M. Barrett and David A. Eberth},
  journal={Palaeontology},
  year={2007},
  volume={50}
}
Abstract:  An exceptionally preserved herd of the ceratopsian dinosaur Psittacosaurus was recovered from the Lujiatun Beds of the Lower Cretaceous Yixian Formation, Liaoning Province, north‐east China. This specimen provides the earliest direct evidence of post‐nestling gregarious behaviour in this important dinosaur clade. The sediment in which the skeletons occur represents a lahar (volcanic mudflow), indicating that the six individuals present were entombed simultaneously during a… 

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References

SHOWING 1-10 OF 44 REFERENCES

A new troodontid dinosaur from China with avian-like sleeping posture

The discovery of a new troodontid taxon from the Early Cretaceous Yixian Formation of western Liaoning, China is reported, preserves several features that have been implicated in avialan origins and is preserved in the stereotypical sleeping or resting posture found in extant Aves.

Evolutionary radiation of the Jehol Biota: chronological and ecological perspectives

The Jehol Biota, preserved in the lacustrine sediments of Liaoning Province, northeast China, has provided a new window for understanding Early Cretaceous terrestrial ecosystems. Based on recent

Non‐avian dinosaur fossils from the Lower Cretaceous Jehol Group of western Liaoning, China

The discovery of four-winged dinosaurs was suggested to provide strong evidence supporting the ‘tree-down’ hypothesis for the origin of avian flight, though in-depth analysis and more data are needed to confirm this.

A New Genus of Psittacosauridae (Dinosauria: Ornithopoda) and the Origin and Early Evolution of Marginocephalian Dinosaurs

The result shows that this specimen represents a new genus of Psittacosauridae, Hongshanosaurus houi, gen. nov., and confirms the monophyletic status for Ceratopsia and Marginocephalia, but Heterodontosaurus is found to be the sister taxon to Marginocephalus, rather than a basal Ornithopoda.

An Adult Specimen of Hongshanosaurus houi (Dinosauria: Psittacosauridae) from the Lower Cretaceous of Western Liaoning Province, China

Abstract A new specimen consisting of a complete skull and lower jaw was discovered from the Lujiatun bed of the Lower Cretaceous Yixian Formation in the Lujiatun site, Beipiao, western Liaoning

Palaeontology: Parental care in an ornithischian dinosaur

A dramatic specimen of the small ornithischian dinosaur Psittacosaurus sp.

The Taphonomy of a Centrosaurus (Ornithischia: Certopsidae) Bone Bed from the Dinosaur Park Formation (Upper Campanian), Alberta, Canada, with Comments on Cranial Ontogeny

Abstract Bone bed 43 is one of at least eight paucispecific Centrosaurus bone beds located in the Dinosaur Park Formation (Upper Campanian) in Dinosaur Provincial Park, Alberta, Canada. It long has

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.

Growth curve of Psittacosaurus mongoliensis Osborn (Ceratopsia: Psittacosauridae) inferred from long bone histology

The first reconstruction of a growth curve (mass vs. age) for a dinosaur was made for this taxon using a new method called Developmental Mass Extrapolation, and the results suggest P. mongoliensis had an S-shaped growth curve characteristics of most extant vertebrates, and had maximal growth rates that exceeded extant reptiles and marsupials, but were slower than most avian and eutherian taxa.