Locality	Layer
	Thailand, North Thailand, Wat Chonlathararam,Loei area	Huai I-Loet Fm.,grey shales
	USA, Nevada, White Pine Co., Buck Mt. 35 km NE of Eureka	Rib Hill Arcturus Fm.
	USA, Texas, Wichita Co., Electra, 4 mls S of	Clyde Fm. of Wichita Group