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Evidence for modular evolution in a long-tailed pterosaur with a pterodactyloid skull
Darwinopterus exhibits a remarkable ‘modular’ combination of characters: the skull and neck are typically pterodactyloid, exhibiting numerous derived character states, while the remainder of the skeleton is almost completely plesiomorphic and identical to that of basal pterosaurs, supporting the idea that modules were the principal focus of natural selection and played a leading role in evolutionary transitions. Expand
A communal catalogue reveals Earth’s multiscale microbial diversity
A meta-analysis of microbial community samples collected by hundreds of researchers for the Earth Microbiome Project is presented, creating both a reference database giving global context to DNA sequence data and a framework for incorporating data from future studies, fostering increasingly complete characterization of Earth’s microbial diversity. Expand
Bacterial diversity in the snow over Tibetan Plateau Glaciers
Bacterial diversity was unexpectedly high in the snow habitats of the world’s highest plateau, with 15 common genera distributed widely among the glaciers, according to culture-independent molecular analysis of 16S rRNA gene clone library and flow cytometry approaches. Expand
Geographic distance and pH drive bacterial distribution in alkaline lake sediments across Tibetan Plateau
It is shown that pH is the best predictor of bacterial community structure in alkaline sediments, and that both geographic distance and chemical factors govern bacterial biogeography in lake sediments. Expand
U-Pb zircon age for the Daohugou Biota at Ningcheng of Inner Mongolia and comments on related issues
SHRIMP U-Pb zircon dating was carried out for the Daohugou Biota near Ningcheng of Inner Mongolia and for lavas overlying or underlying salamander-bearing strata at Reshuitang in Lingyuan of WestExpand
An Egg-Adult Association, Gender, and Reproduction in Pterosaurs
Examples of Darwinopterus preserved together with an egg from the Jurassic of China demonstrate that males of this pterosaur had a relatively small pelvis and a large cranial crest, whereas females had a comparatively largepelvis and no crest. Expand
Microbial community structure in moraine lakes and glacial meltwaters, Mount Everest.
The bacterial diversity and abundance in two moraine lakes and two glacial meltwaters in the remote Mount Everest region were examined through 16S rRNA gene clone library and flow cytometry approaches and show that the bacteria in Mount Everest may be derived from different sources. Expand
U-Pb zircon age from the base of the Ediacaran Doushantuo Formation in the Yangtze Gorges, South China: constraint on the age of Marinoan glaciation
The reported new U-Pb age by sensitive high-resolution ion microprobe (SHRIMP II) on zircon was obtained from a tuff sample at the basal Doushantuo Formation in the Jiuqunao section, which situatedExpand
Seasonal variation of snow microbial community structure in the East Rongbuk glacier, Mt. Everest
The bacterial diversity and abundance in the snow of East Rongbuk glacier, Mt. Everest were examined through 16S rRNA gene clone library and flow cytometry approaches, and the community structure varied seasonally. Expand
Salinity drives archaeal distribution patterns in high altitude lake sediments on the Tibetan Plateau.
It is shown that salinity is a key factor controlling archaeal community diversity and composition in lake sediments on a spatial scale that spans nearly 2000 km on the Tibetan Plateau. Expand