An exceptionally well-preserved theropod dinosaur from the Yixian Formation of China

Published on Jan 1, 1998in Nature 41.58
· DOI :10.1038/34356
Pei-ji Chen1
Estimated H-index: 1
(Academia Sinica),
Zhiming Dong12
Estimated H-index: 12
(Academia Sinica),
Shuo-nan Zhen1
Estimated H-index: 1
(American Museum of Natural History)
Two spectacular fossilized dinosaur skeletons were recently discovered in Liaoning in northeastern China. Here we describe the two nearly complete skeletons of a small theropod that represent a species closely related to Compsognathus. Sinosauropteryx has the longest tail of any known theropod, and a three-fingered hand dominated by the first finger, which is longer and thicker than either of the bones of the forearm. Both specimens have interesting integumentary structures that could provide information about the origin of feathers. The larger individual also has stomach contents, and a pair of eggs in the abdomen.
  • References (23)
  • Citations (468)
Published on Jan 1, 1996
Alan Feduccia21
Estimated H-index: 21
This text is a comprehensive and illustrated discussion of the origin of birds and of avian flight. Ornithologist and evolutionary biologist Alan Feduccia, author of "Age of Birds," here draws on fossil evidence and studies of the structure and biochemistry of living birds to present knowledge and data on avian evolution and propose a model of this evolutionary process. Feduccia begins with an overview of bird evolution, giving his opinions about the controversial problem in verte-brate paleonto...
460 Citations
Published on Jan 1, 1996
David E. Fastovsky18
Estimated H-index: 18
David B. Weishampel25
Estimated H-index: 25
Preface to the second edition Part I. Setting the Stage: 1. Introduction 2. Back to the past: the Mesozoic era 3. Discovering order in the natural world 4. Interrelationships of vertebrates 5. The origin of Dinosauria Part II. Ornithischia: Armored, Horned, and Duck-Billed Dinosaurs: 6. Stegosauria: hot plates 7. Ankylosauria: mas and gas 8. Pachycephalosauria: ramroads of the Cretaceous 9. Ceratopsia: horns and all the frills 10. Ornithopoda: the tuskers, antelopes, and 'mighty ducks' of the Me...
66 Citations
Published on Apr 1, 1960in AIBS Bulletin
Josselyn Van Tyne1
Estimated H-index: 1
(University of Florida),
Andrew J. Berger1
Estimated H-index: 1
176 Citations Source Cite
Published on Jan 1, 1950
John Zachary Young1
Estimated H-index: 1
Evolution of life in relation to climatic and geological change The general plan of chordate organization: Amphioxus The origin of chordates from filter feeding animals The vertebrates without jaws: Lampreys Fishes Evolution and adaptive radiation of Chondrichthyes The mastery of the water: Bony fishes Lung fishes First terrestrial vertebrates: Amphibia Evolution and adaptive radiation of amphibia Life on land: The reptiles Evolution of the reptiles Life in the air: The birds Bird behaviour The ...
393 Citations
Published on Jun 1, 1994in Cretaceous Research 1.93
Wenben Li1
Estimated H-index: 1
(Academia Sinica),
Zhaosheng Liu1
Estimated H-index: 1
(Academia Sinica)
Abstract Cretaceous strata are widely distributed in China and rich in fossil spores and pollen grains. According to current data, two Cretaceous palynofloras occupy the North China and the South China paleobiogeographic provinces. For each palynoflora an assemblage sequence is proposed and described. The northern flora is composed of six assemblages (in ascending order): 1. Cicatricosisporites australiensis-Fixisporites tortus ; 2. Impardecispora tribotrys-Clavatipollenites hughesi ; 3. Cicatri...
53 Citations Source Cite
Published on Oct 22, 2015in The Quarterly Review of Biology 2.32
Philip Regal2
Estimated H-index: 2
Previous theories relating the origin of feathers to flight or to heat conservation are considered to be inadequate. There is need for a model of feather evolution that gives attention to the function and adaptive advantage of intermediate structures. The present model attempts to reveal and to deal with, the spectrum of complex questions that must be considered. In several genera of modern lizards, scales are elongated in warm climates. It is argued that these scales act as small shields to sol...
78 Citations Source Cite
Published on Oct 1, 1995in Nature 41.58
Lianhai Hou8
Estimated H-index: 8
(Chinese Academy of Sciences),
Larry D. Martin28
Estimated H-index: 28
(University of Kansas),
Alan Feduccia21
Estimated H-index: 21
(University of North Carolina at Chapel Hill)
DISCOVERY Of avian remains close to the age of Archaeopteryx in the Liaoning Province of northeastern China provides the earliest evidence for a beaked, edentulous bird. The associated wing skeleton retains the primitive pattern found in Archaeopteryx, including a manus with unfused carpal elements and long digits. Two leg skeletons from the same site also show an Archaeopteryx level of morphology, and provide the earliest indisputable evidence for a covering of body contour feathers, These spec...
121 Citations Source Cite
Published on Feb 1, 1997in Nature 41.58
Jin Meng25
Estimated H-index: 25
(University of Massachusetts Amherst),
André R. Wyss28
Estimated H-index: 28
(University of California, Santa Barbara)
Evidence of hair from several extinct mammals has been recovered from a rich accumulation of fossil excrement from the Late Palaeocene beds of Inner Mongolia, China. This highly unusual and previously undocumented depositional occurrence consists of hundreds of mammalian carnivore coprolites (fossil faeces) and a lesser number of probably raptorial bird regurgitalites1 (fossil pellets). The fossil hair occurs as impressions and natural casts in the extremely fine-grained, calcareous matrix that ...
50 Citations Source Cite
Published on Oct 1, 1993in Canadian Journal of Earth Sciences 1.32
Zhi-Ming Dong1
Estimated H-index: 1
Preliminary evidence suggests that during the Early Cretaceous there were separate dinosaur faunas in northern and southern Asia. The northern fauna, the Psittacosaurus fauna, is well known and based upon collections from numerous localities and formations throughout northern China and southern Mongolia. Although the southern fauna is still poorly known and based upon collections from only a small number of sites, it appears to be distinguished by the absence of psittacosaurs. The discovery of P...
17 Citations Source Cite
Published on Nov 1, 1995in Nature 41.58
Luis M. Chiappe42
Estimated H-index: 42
(American Museum of Natural History)
More than half of the evolutionary history of birds is played out in the Mesozoic. A recent burst of fossil discoveries has documented a tremendous diversity of early avians. Clarification of the Phylogenetic structure of this diversity has provided clues for a better understanding of the evolution of functional, developmental and physiological characteristics of modern birds. Yet their long Mesozoic history is only beginning to be deciphered.
202 Citations Source Cite
  • References (23)
  • Citations (468)
Cited By468
Published on Oct 1, 1999in Journal of Molecular Biology 4.89
Carine Tisné19
Estimated H-index: 19
(Pasteur Institute),
Muriel Delepierre36
Estimated H-index: 36
(Pasteur Institute),
Brigitte Hartmann24
Estimated H-index: 24
(Centre national de la recherche scientifique)
Abstract NF-κB is involved in the transcriptional regulation of a large number of genes, in particular those of human immunodeficiency virus (HIV). Recently, we used NMR spectroscopy and molecular modelling to study the solution structure of a native duplex related to the HIV-1 κB site, together with a mutated duplex for which a three base-pair change abolishes NF-κB binding. The native duplex shows unusual dynamics of the four steps surrounding the κB site. Here, we explore the intrinsic proper...
43 Citations Source Cite
Published on Jan 1, 2008
Source Cite
Published on Jan 1, 2010in Current Topics in Microbiology and Immunology 5.83
Gioacchino Natoli1
Estimated H-index: 1
Inflammatory responses to microbial and non-microbial stimuli involve coordinate changes in the expression of hundreds of genes. The inflammatory gene expression programs display two important features: first, alternative stimuli affect both a large set of common genes and a variable number of stimulus-specific genes. Second, different genes are activated with different kinetics over several hours after the initial stimulus. Mechanistically, these features reflect the interplay between two main ...
11 Citations Source Cite
Published on Jul 1, 1999in Nature 41.58
Zhexi Luo1
Estimated H-index: 1
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. Accurate radiometric dating now shows unambiguously that these beds are from the Early Cretaceous, providing a new temporal calibration for assessing the evolution of animal and plant life from that period.
41 Citations Source Cite
H. Okada1
Estimated H-index: 1
The major scientific achievements of the activity of IGCP 350 (1993–1998) have been summarized as regards (1) stratigraphy and correlation, (2) plume-related events, (3) biological aspects of environmental change, (4) physical aspects of environmental change, (5) chemical aspects of environmental change, (6) climate environments, and (7) natural resources, all of which were the main topics of researches of this project.
2 Citations Source Cite
Peter J. Barnes Dm DSc Frs178
Estimated H-index: 178
(University of Massachusetts Medical School)
The Nuclear Factor-kappa B (NF-κB) represents a family of transcription factors that controls a variety of processes related to immunity and development. This family of transcription factors is conserved from insects to humans. Five different proteins, encoded by five different genes, of this family are present in mammals and three related proteins are present in Drosophila. These factors act downstream of many receptors that receive signals from cytokines, microorganisms, and developmental cues...
319 Citations Source Cite
Published on Jan 1, 2006in Annales Zoologici 1.02
Dong Ren , Jingjing Tan1
Estimated H-index: 1
(Capital Normal University)
A new genus including two new species of fossil cupedids, Latocupes fortis gen. and sp. nov. and L. bellus gen. and sp. nov., is described from the Yixian Formation of western Liaoning Province, China and assigned to family Cupedidae. A brief morphological analysis shows that the new genus might be sister group of extant genus Priacma.
Published on Jan 1, 2007
Raymond R. Rogers27
Estimated H-index: 27
David A. Eberth32
Estimated H-index: 32
Anthony R. Fiorillo2
Estimated H-index: 2
The vertebrate fossil record extends back more than 500 million years, and bonebeds - localized concentrations of the skeletal remains of vertebrate animals - help unlock the secrets of this long history. Often spectacularly preserved, bonebeds - both modern and ancient - can reveal more about life histories, ecological associations, and preservation patterns than any single skeleton or bone. For this reason, bonebeds are frequently studied by paleobiologists, geologists, and archaeologists seek...
77 Citations Source Cite
Sung Dong Park4
Estimated H-index: 4
(Yonsei University),
So Yeong Cheon8
Estimated H-index: 8
(Yonsei University)
+ 5 AuthorsSang Kyou Lee20
Estimated H-index: 20
(Yonsei University)
Abstract Suppression of nuclear factor-κB (NF-κB) activation, which is best known as a major regulator of innate and adaptive immune responses, is a potent strategy for the treatment of endotoxic sepsis. To inhibit NF-κB functions, we designed the intra-nuclear transducible form of transcription modulation domain (TMD) of RelA (p65), called nt-p65-TMD, which can be delivered effectively into the nucleus without influencing the cell viability, and work as interactomic inhibitors via disruption of...
9 Citations Source Cite