ArticleScientific reports2019
A new alvarezsaurian theropod from the Upper Jurassic Shishugou Formation of western China.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed.
- Body size and evolutionary rate analyses reveal complex evolutionary history of Alvarezsauria.Cladistics : the international journal of the Willi Hennig Society · 2025Article
- First unambiguous record of pneumaticity in the axial skeleton of alvarezsaurians (Theropoda: Coelurosauria).PloS one · 2025Article
- Cursorial ecomorphology and temporal patterns in theropod dinosaur evolution during the mid-Cretaceous.Royal Society open science · 2025Article
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- Shed teeth from Portezuelo formation at Sierra del Portezuelo reveal a higher diversity of predator theropods during Turonian-Coniacian times in northern Patagonia.BMC ecology and evolution · 2024Article
- Functional space analyses reveal the function and evolution of the most bizarre theropod manual unguals.Communications biology · 2023Article
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Abstract
Alvarezsaurian dinosaurs, a group of bizarre theropods with greatly shortened and modified forelimbs, are known mostly from the Cretaceous of Asia and South America. Here we report a new alvarezsaurian, Shishugounykus inexpectus gen. et sp. nov, based on a specimen recovered from the Middle-Upper Jurassic Shishugou Formation of the Junggar Basin, western China. Together with two other alvarezsaurians from this formation, i.e., Haplocheirus sollers and Aorun zhaoi, these Shishugou forms represent the only known Jurassic alvarezsaurians worldwide. Similar to the two other Shishugou alvarezsaurians, this new alvarezsaurian displays early stages in the development of the highly modified alvarezsaurian forelimb, but it possesses a number of manual features closer to the typical coelurosaurian theropod condition. Combining morphological and histological features, our analysis indicates that the earliest known alvarezsaurians are variable in size and other important morphological features, and in particular display a mosaic distribution of forelimb features.
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