Match!

A Jurassic ornithischian dinosaur from Siberia with both feathers and scales

Published on Jul 25, 2014in Science41.063
· DOI :10.1126/science.1253351
Pascal Godefroit16
Estimated H-index: 16
(Royal Belgian Institute of Natural Sciences),
Sofia M. Sinitsa2
Estimated H-index: 2
+ 5 AuthorsPaul Spagna7
Estimated H-index: 7
(Royal Belgian Institute of Natural Sciences)
Sources
Abstract
Middle Jurassic to Early Cretaceous deposits from northeastern China have yielded varied theropod dinosaurs bearing feathers. Filamentous integumentary structures have also been described in ornithischian dinosaurs, but whether these filaments can be regarded as part of the evolutionary lineage toward feathers remains controversial. Here we describe a new basal neornithischian dinosaur from the Jurassic of Siberia with small scales around the distal hindlimb, larger imbricated scales around the tail, monofilaments around the head and the thorax, and more complex featherlike structures around the humerus, the femur, and the tibia. The discovery of these branched integumentary structures outside theropods suggests that featherlike structures coexisted with scales and were potentially widespread among the entire dinosaur clade; feathers may thus have been present in the earliest dinosaurs.
  • References (36)
  • Citations (56)
📖 Papers frequently viewed together
200943.07Nature
4 Authors (Xiaoting Zheng, ..., Zhi-Ming Dong)
108 Citations
199843.07Nature
3 Authors (Pei-ji Chen, ..., Shuo-nan Zhen)
489 Citations
4 Authors (Gerald Mayr, ..., Olaf Vogel)
81 Citations
78% of Scinapse members use related papers. After signing in, all features are FREE.
References36
Newest
#1Pascal GodefroitH-Index: 16
#2Andrea CauH-Index: 15
Last. Gareth J. DykeH-Index: 28
view all 6 authors...
The complete skeleton of a new avialan dinosaur from the Tiaojishan Formation (Middle–Late Jurassic period) of Liaoning Province, China, is described and included in a comprehensive phylogenetic analysis of basal Paraves.
96 CitationsSource
#1Xiaoting Zheng (LYU: Linyi University)H-Index: 15
#2Zhonghe(周忠和) Zhou (CAS: Chinese Academy of Sciences)H-Index: 1
Last. Xing(徐星) Xu (LYU: Linyi University)H-Index: 1
view all 9 authors...
Recent discoveries of large leg feathers in some theropods have implications for our understanding of the evolution of integumentary features on the avialan leg, and particularly of their relevance for the origin of avialan flight. Here we report 11 basal avialan specimens that will greatly improve our knowledge of leg integumentary features among early birds. In particular, they provide solid evidence for the existence of enlarged leg feathers on a variety of basal birds, suggest that extensive...
60 CitationsSource
#1Pascal Godefroit (Geological Museum)H-Index: 16
#2Helena Demuynck (Vrije Universiteit Brussel)H-Index: 1
Last. Philippe Claeys (Vrije Universiteit Brussel)H-Index: 31
view all 6 authors...
Feathered dinosaurs from the Middle-Late Jurassic of north-eastern China have recently been described. Here, a new paravian dinosaur, characterized by less extensive feathers on its limbs and tail, shows that the plumage of theropods was already diversified and adapted to different ecological niches by the Late Jurassic.
50 CitationsSource
#1Fenglu Han (CAS: Chinese Academy of Sciences)H-Index: 12
#2Paul M. Barrett (AMNH: American Museum of Natural History)H-Index: 38
Last. Xing XuH-Index: 44
view all 4 authors...
ABSTRACT Jeholosaurus shangyuanensis is a small ornithischian dinosaur from the Lower Cretaceous Yixian Formation of the Lujiatun locality, Liaoning Province, China. Here, we provide the first detailed description of its postcranial skeleton based on the holotype and four other well-preserved skeletons, and compare it with material of other primitive cerapodans. Jeholosaurus can be diagnosed on the basis of one postcranial autapomorphy, relating to the absence of parapophyses from the anterior d...
25 CitationsSource
Heterodontosaurids comprise an important early radiation of small-bodied herbivores that persisted for approximately 100 My from Late Triassic to Early Cretaceous time. Review of available fossils unequivocally establishes Echinodon as a very small-bodied, late-surviving northern heterodontosaurid similar to the other northern genera Fruitadens and Tianyulong. Tianyulong from northern China has unusual skeletal proportions, including a relatively large skull, short forelimb, and long manual digi...
53 CitationsSource
Recent discoveries in Asia have greatly increased our understanding of the evolution of dinosaurs’ integumentary structures, revealing a previously unexpected diversity of “protofeathers” and feathers. However, all theropod dinosaurs with preserved feathers reported so far are coelurosaurs. Evidence for filaments or feathers in noncoelurosaurian theropods is circumstantial and debated. Here we report an exceptionally preserved skeleton of a juvenile megalosauroid, Sciurumimus albersdoerferi n. g...
59 CitationsSource
#1Phil R. Bell (U of A: University of Alberta)H-Index: 15
The characterization of palaeospecies typically relies on hard-tissue anatomy, such as bones or teeth that is more readily fossilized than soft parts. Among dinosaurs, skin impressions are commonly associated with partial and complete hadrosaurid skeletons, and consist of non-imbricating tubercles or scales. Skin impressions from various parts of the body of two species of the hadrosaurine Saurolophus (S. angustirostris from Mongolia and S. osborni from Canada) are described from multiple specim...
28 CitationsSource
#1Xing Xu (LYU: Linyi University)H-Index: 44
#2Hai-Lu YouH-Index: 22
Last. Fenglu Han (CAS: Chinese Academy of Sciences)H-Index: 12
view all 4 authors...
Archaeopteryx is widely accepted as being the most basal bird, and accordingly it is regarded as central to understanding avialan origins; however, recent discoveries of derived maniraptorans have weakened the avialan status of Archaeopteryx. Here we report a new Archaeopteryx-like theropod from China. This find further demonstrates that many features formerly regarded as being diagnostic of Avialae, including long and robust forelimbs, actually characterize the more inclusive group Paraves (com...
170 CitationsSource
#1Peter J. Makovicky (FMNH: Field Museum of Natural History)H-Index: 33
#2Brandon M. Kilbourne (FMNH: Field Museum of Natural History)H-Index: 1
Last. Mark A. Norell (AMNH: American Museum of Natural History)H-Index: 60
view all 4 authors...
ABSTRACT Basal ornithopods exhibit a very low diversity in Cretaceous deposits of Asia, with only two diagnostic taxa published to date. A new basal ornithopod, Haya griva, gen. et sp. nov., is described here based on several well-preserved specimens from the Late Cretaceous Javkhlant Formation of Mongolia. Haya is diagnosed by a unique combination of characters, some of which are also present in other Asian Cretaceous basal ornithopods such as a bifid caudal ramus of the jugal and a tapering an...
35 CitationsSource
26 CitationsSource
Cited By56
Newest
#1Martin Kundrát (University of Pavol Jozef Šafárik)H-Index: 12
#2Thomas H. RichH-Index: 28
Last. Benjamin P. Kear (Uppsala University)H-Index: 24
view all 7 authors...
ABSTRACT Exceptionally preserved Mesozoic feathered dinosaur fossils (including birds) are famous, but recognized from only very few localities worldwide, and are especially rare in the Southern Hemisphere. Here we report an assemblage of non-avian and avian dinosaur feathers from an Early Cretaceous polar (around 70°S) environment in what is now southeastern Australia. The recovered remains incorporate small (10–30 mm long) basal paravian-like tufted body feathers, open-vaned contour feathers, ...
Source
#1D. Cary Woodruff (U of T: University of Toronto)H-Index: 5
#2Darren Naish (NOC: National Oceanography Centre)H-Index: 8
Last. Jamie Dunning (Imperial College London)
view all 3 authors...
ABSTRACTMany extant invertebrate and vertebrate taxa possess osteological, keratinous, or chitinous structures that are photoluminescent: that is, variably coloured and patterned when observed unde...
Source
#1Arindam Roy (HKU: University of Hong Kong)H-Index: 1
#2Michael Pittman (HKU: University of Hong Kong)H-Index: 11
Last. Xing Xu (CAS: Chinese Academy of Sciences)H-Index: 44
view all 5 authors...
1 CitationsSource
#1Jing-Shan Zhao (THU: Tsinghua University)H-Index: 1
#2Jiayue Zhang (THU: Tsinghua University)H-Index: 1
Last. Pascal Godefroit (Royal Belgian Institute of Natural Sciences)H-Index: 18
view all 5 authors...
Abstract The feather of a bird consists of barbs which again comprise numerous barbules with micro-hooklets. This hierarchically organized feather structure provides a smooth vane to bear the load from the airflow; however, the feather vane is vulnerable to disruption by external pulling forces during collision with the branches of a tree and hitting some small obstacles in flight or strong turbulence. The feather is unable to carry the weight of the bird's body if the vane could not be recovere...
1 CitationsSource
#1Robin R. DawsonH-Index: 1
Last. Hagit P. AffekH-Index: 26
view all 6 authors...
Studying the origin of avian thermoregulation is complicated by a lack of reliable methods for measuring body temperatures in extinct dinosaurs. Evidence from bone histology and stableisotopes often relies on uncertain assumptions about the relationship between growth rate and body temperature, or the isotopic composition (δ18O) of body water. Clumped isotope (Δ47) paleothermometry, based on binding of 13C to 18O, provides a more robust tool, but has yet to be applied across a broad phylogenetic...
Source
#1Pascal GodefroitH-Index: 18
#2Sofia M. SinitsaH-Index: 2
Last. Danielle DhouaillyH-Index: 25
view all 6 authors...
Recent studies on the origin of feathers have been stimulated by discoveries of feather-like structures in various nonavian theropod dinosaurs from Late Jurassic to Early Cretaceous deposits in northeastern China. Filamentous integumentary structures are also known in two ornithischian dinosaurs from China, but whether these filaments form part of the evolutionary lineage of feathers has been controversial. Kulindadromeus zabaikalicus, a basal neornithischian dinosaur from the Jurassic of Siberi...
Source
#1Fiann M. SmithwickH-Index: 5
#2Jakob VintherH-Index: 28
Colour plays a key role in the ecology of living birds and has undoubtedly been important throughout their evolutionary history. Colour patterns influence all aspects of avian ecology, including interspecific communication such as predator-prey dynamics and intraspecific signalling such as sexual selection. The past decade has seen a revolution in our understanding of how colour influenced avian evolution in deep time. From the overturning of the paradigm that lithified bacteria were responsible...
Source
#1Christian Foth (University of Fribourg)H-Index: 11
Feathers are a characteristic of modern birds that differentiate them from all other extant non-avian reptiles. The origin of feathers goes back deep into the Mesozoic, preceding the origin of flight, and early protofeathers were probably present in the ancestral Tetanurae, Dinosauria, or even Ornithodira. Among extant vertebrates, the feathers of modern birds are morphologically the most complex integumentary structure with enormous shape diversity resulting from a hierarchical organization of ...
Source
#1Xing Xu (CAS: Chinese Academy of Sciences)H-Index: 1
The discovery of Sinosauropteryx in 1996 marks the beginning of a new era in the research on the origin and early evolution of feathers. Subsequent discoveries of dinosaur fossils preserving feathers and feather-like integumentary appendages from both the Jurassic and Cretaceous deposits of China and other countries demonstrate a longer and more complex evolutionary history of feathers before the origin of birds than was previously thought. Currently, there are still many issues that continue to...
1 CitationsSource
#1Ulysse LefèvreH-Index: 5
#2Andrea CauH-Index: 15
Last. Pascal GodefroitH-Index: 18
view all 4 authors...
Two decades of paleontological discoveries of basal birds and non-avian theropods with preserved integumentary structures, especially in Late Jurassic to Early Cretaceous deposits from northeastern China, have greatly improved our understanding of the origin and early evolution of birds and their plumage. Here, we present a concise review of the plumage evolution within pennaraptora, the most inclusive clade containing Oviraptorosauria and Paraves. Feather or feather-like morphotypes were partic...
Source