A new species of the probable calcareous alga Amsassia, A. koreanensis, is recognized from the Duwibong Formation(Middle Ordovician, Darriwilian) of the Taebaek
The bivalved arthropod Branchiocaris? yunnanensis Hou, 1987 is redescribed on the basis of new fossil material from the early Cambrian Chengjiang biota, South C