EntityQ3694119· pop 15· linked from 830 articlesstratigraphic unitSign in to savevolume of rock defined by its petrographic, lithologic or paleontologic featuresConnectionsUtahEntityrockEntityInternational Standard Book NumberEntitypaleontologyEntityfossilEntityJurassicEntitysedimentary rockEntityPermianEntitytaxonEntitystratigraphyEntityglaciologyEntitysedimentologyEntitypetrographyEntityCanyonlands National ParkEntitygeological formationEntitylithologyEntityvolcanic rockEntityColorado PlateauEntityCapitol Reef National ParkEntityInternational Commission on StratigraphyEntityCategoriesGeological unitsGeology terminologyStratigraphy