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New basal synapsid supports Laurasian origin for therapsids
Therapsida Dashankou Permian Laurasia China.
2014/3/26
The distant evolutionary ancestry of m ammals is documented by a rich therapsi d fossil record. While sphenacodontid
synapsids are considered the sister−group of therapsids, the place of origin...
A new specimen ofBiseridens qilianicus indicates its phylogenetic position as the most basal anomodont
Anomodontia Permian biogeography phylogeny Therapsida
2014/3/26
A new well-preserved basal therapsid skull from the Xidagou Formation, Middle Permian of China, is
identified as Biseridens qilianicus. The following synapomorphies distinguish Biseridensas an anomod...
A basal parvicursorine (Theropoda: Alvarezsauridae) from the Upper Cretaceous of China
Late Cretaceous Majiacun Formation Parvicursorinae Theropoda cu rsoriality
2014/3/26
A new alvarezsaurid theropod, Xixianykus zhangi gen. et sp. nov., is described based on a partial postcranial skeleton
collected from the Upper Cretaceous Majiacun Formation of Xixia County, Henan...