Riochican


The Riochican age is a period of geologic time within the Paleocene and Eocene epochs of the Paleogene, used more specifically within the South American land mammal ages. It follows the Peligran and precedes the Itaboraian age.

Etymology

This age is named after the Río Chico Group of the Golfo San Jorge Basin.

Formations

Formation
bold is type
CountryBasinNotes
Río Chico GroupGolfo San Jorge Basin
Bogotá FormationAltiplano Cundiboyacense
Bororó FormationGolfo San Jorge Basin
Chota FormationBagua Basin
Koluel Kaike FormationGolfo San Jorge Basin
Las Flores FormationAustral Basin
Maíz Gordo FormationSalta Basin
Mealla FormationSalta Basin
Mogollón FormationTalara & Tumbes Basins
Muñani FormationAltiplano Basin
Peñas Coloradas FormationGolfo San Jorge Basin
Río Loro FormationSierras Pampeanas
Salamanca FormationGolfo San Jorge Basin

Fossils