Locality: Phu Phok (SK1). Kok Prsil Sub-District, Phu Phan District, Sakon Nakhon Province, Thailand.

Horizon: Sao Khua Formation.

Biostratigraphy:

Age: Berriasian Stage, Lower Neocomian Subepoch, - Early Barremian Stage, Lower Gallic Subepoch, Early Cretaceous Epoch, Early Cretaceous.

 Material:

SK1-1 to SK1-5: 5 eggs with embryo's inside.