Locality	Layer
	Mexico, Guerrero, Olinalá, 3 km towards Mexteopan	Los Arcos Fm., Unit 2
	Mexico, Guerrero, Olinalá, 3 km towards Mexteopan	Los Arcos Fm., Unit 4
	Mexico, Guerrero, Olinalá, 3 km towards Mexteopan	Los Arcos Fm., Unit 5
	Mexico, Guerrero, Olinalá, 3 km towards Mexteopan	Los Arcos Fm., Unit 7