A new Jurassic scansoriopterygid and the loss of membranous wings in theropod dinosaurs

@article{Wang2019ANJ,
  title={A new Jurassic scansoriopterygid and the loss of membranous wings in theropod dinosaurs},
  author={Min Qing Wang and Jingmai K. O’Connor and Xing Xu and Zhonghe Zhou},
  journal={Nature},
  year={2019},
  volume={569},
  pages={256-259}
}
Powered flight evolved independently in vertebrates in the pterosaurs, birds and bats, each of which has a different configuration of the bony elements and epidermal structures that form the wings1,2. Whereas the early fossil records of pterosaurs and bats are sparse, mounting evidence (primarily from China) of feathered non-avian dinosaurs and stemward avians that derive primarily from the Middle–Upper Jurassic and Lower Cretaceous periods has enabled the slow piecing together of the origins… Expand
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References

SHOWING 1-10 OF 55 REFERENCES
A bizarre Jurassic maniraptoran theropod with preserved evidence of membranous wings
TLDR
Documentation of the unique forelimbs of Yi greatly increases the morphological disparity known to exist among dinosaurs, and highlights the extraordinary breadth and richness of the evolutionary experimentation that took place close to the origin of birds. Expand
A bony-crested Jurassic dinosaur with evidence of iridescent plumage highlights complexity in early paravian evolution
TLDR
A distinctive new Yanliao theropod species bearing prominent lacrimal crests, bony ornaments previously known from more basal theropods, and a suite of unusual skeletal and feather characteristics consistent with proposed rapid character evolution and significant diversity in signalling and locomotor strategies near bird origins. Expand
A new feathered maniraptoran dinosaur fossil that fills a morphological gap in avian origin
Recent fossil discoveries have substantially reduced the morphological gap between non-avian and avian dinosaurs, yet avians including Archaeopteryx differ from non-avian theropods in their limbExpand
A bizarre Jurassic maniraptoran from China with elongate ribbon-like feathers
TLDR
This finding shows that a member of the avialan lineage experimented with integumentary ornamentation as early as the Middle to Late Jurassic, and provides further evidence relating to this aspect of the transition from non-avian theropods to birds. Expand
Palaeontology: Dinosaur up in the air
TLDR
The tiny animal, from 160 million-year-old sediments in China, has an unusual assortment of stiff filamentous feathers and also two long bony elements attached to the wrists, unlike anything seen previously in any dinosaur. Expand
Reinterpretation of the Early Cretaceous maniraptoran (Dinosauria: Theropoda) Zhongornis haoae as a scansoriopterygid-like non-avian, and morphological resemblances between scansoriopterygids and basal oviraptorosaurs
TLDR
Cladistic analysis confirms a close relationship between Zhongornis and Scansoriopterygidae, which share forelimbs and pedal unguals that are elongate compared to those of oviraptorosaurs, but does not support Oviraptorosaur affinities for this clade. Expand
A Review of Dromaeosaurid Systematics and Paravian Phylogeny
TLDR
This study provides the most detailed and comprehensive phylogenetic analysis of paravians to date in order to explore the phylogenetic history of dromaeosaurid taxa and reviews and revises the membership of DromaeOSauridae and provides an apomorphy-based diagnosis for all valid taxa. Expand
Rates of dinosaur limb evolution provide evidence for exceptional radiation in Mesozoic birds
TLDR
A Cretaceous adaptive radiation of stem-group birds was enabled by restructuring of the terrestrial locomotor module, which represents a key innovation and illustrates the importance of fossil data for understanding the macroevolutionary processes generating modern biodiversity. Expand
Fossilized melanosomes and the colour of Cretaceous dinosaurs and birds
TLDR
It is reported that melanosomes (colour-bearing organelles) are not only preserved in the pennaceous feathers of early birds, but also in an identical manner in integumentary filaments of non-avian dinosaurs, thus refuting recent claims that the filaments are partially decayed dermal collagen fibres. Expand
A juvenile coelurosaurian theropod from China indicates arboreal habits
TLDR
It is suggested that the initial appearance of tree-adaptation in theropods was probably not directly related to flight but to other functions, such as seeking food or escaping from predators. Expand
...
1
2
3
4
5
...