In this paper, we report on a new Early Cretaceous vertebrate locality, Phu Din Daeng, in Nakhon PhanomProvince, NE Thailand. The Phu Din Daeng site has yielded a diverse vertebrate assemblage, includ-ing sharks (Heteroptychodus steinmanni), bony fishes (Pycnodontiformes; Sinamiidae cf. Siamamia and?Vidalamiinae, and Ginglymodi), adocid turtles, indeterminate neosuchian crocodiles, pterosaurs anddinosaurs (spinosaurids and indeterminate theropods). A new adocid turtle, Protoshachemys rubra n. g. n.sp. is described on the basis of shell material. Field investigations on the geology and comparisons withother vertebrate faunas place Phu Din Daeng in the Sao Khua Formation (Barremian) of the Khorat Group.