The alleged 'holotype' of the bivalve Yangtzedontaprimitiva Yu, 1985 figured by Qian (2001) is a broken and distorted specimen of the brachiopod Xianfen
The postcranial skeleton of a new specimen of the long-tailed lizard Dalinghosaurus longidigitus was excavated from the Yixian Formation in Lingyuan, western Li
【正】Polyhalite(K2SO4·Mg SO4·2Ca SO4·2H2O)is one of the insoluble potassium mineral which is widely distributed in sulfate-type potassium-bearin