First known monodactyl dinosaur adding knowledge to the evolution and biogeography of alvarezsauroids
The alvarezsauroid theropod Linhenykus monodactylus from the Upper Cretaceous of Inner Mongolia, China is the first known monodactyl non−avian dinosaur, providing important information on the complex patterns of manual evolution seen in alvarezsauroids. In a paper published in the journal of Acta Palaeontologica Polonica 58 (1), Dr. XU Xing, Institute of Vertebrate Paleontology and Paleoanthropology (IVPP), Chinese Academy of Sciences, and his team provide a detailed description of the osteology of this taxon. Linhenykus shows a number of features that are transitional between parvicursorine and non−parvicursorine alvarezsauroids, but detailed comparisons also reveal that some characters had a more complex distribution...