Discovery of Radiolaria from the Zongzhuo Formation in Tianba,Kangmar,Tibet and its Age Implication

There is a group of variegated marine deposits,including the red beds widespread in the area of Tianba,Kangmar,southern Tibet,which previous works have contributed to Cretaceous Zongzhuo Formation by lithologic associations only,but with poor fossil evidence.Due to the absence of age dating fossils,the red bed age is obscure.Abundant Cretaceous radiolaria were discovered from the Zongzhuo Formation in the present study.In spite of the poor general preservation of some radiolarian specimens as recrystallized...